From malassimilation at gmail.com Tue Mar 2 14:30:58 2021 From: malassimilation at gmail.com (E. William Horne) Date: Tue, 2 Mar 2021 14:30:58 -0500 Subject: [Discuss] Please help edit an mp4 file Message-ID: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> My Quaker meeting has been having get-togethers via Zoom video conferencing, and our host recorded a recent meeting on the subject of de jure segregation. However, part of a video that the host streamed into the Zoom video conference was defective, so I'm looking for open-source software that I can use to cut that part out of the .mp4 recording of the meeting. All leads appreciated, and all suggestions welcome. Thank you for your time. Bill Horne From mark at buttery.org Tue Mar 2 14:51:02 2021 From: mark at buttery.org (=?UTF-8?B?U2hpcmxleSBNw6FycXVleiBEw7psY2V5?=) Date: Tue, 2 Mar 2021 14:51:02 -0500 Subject: [Discuss] Please help edit an mp4 file In-Reply-To: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> References: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> Message-ID: The usual leading suggestions are Kdenlive, OpenShot, and Shotcut. I haven't been doing any video editing lately so I have no recent experience with any of them. All three are free and open source. The overkill free but not open source video software for Linux is DaVinci Resolve. That's a full-on professional grade application. On Tue, Mar 2, 2021 at 2:32 PM E. William Horne wrote: > My Quaker meeting has been having get-togethers via Zoom video > conferencing, and our host recorded a recent meeting on the subject of > de jure segregation. > > However, part of a video that the host streamed into the Zoom video > conference was defective, so I'm looking for open-source software that I > can use to cut that part out of the .mp4 recording of the meeting. > > All leads appreciated, and all suggestions welcome. Thank you for your > time. > > Bill Horne > > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > From abreauj at gmail.com Tue Mar 2 15:46:37 2021 From: abreauj at gmail.com (John Abreau) Date: Tue, 2 Mar 2021 15:46:37 -0500 Subject: [Discuss] Please help edit an mp4 file In-Reply-To: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> References: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> Message-ID: For the BLU meetings, I use ffmpeg on the commandline to cut videos at specified timecodes and to transcode between different container formats. I usually just trim off the beginning and the end of the video file. If I need to cut a chunk out of the middle, I first transcode the video to an mkv file, then cut with ffmpeg and rejoin the pieces with mkvmerge. A graphical video editor, even a rudimentary one, is a huge overkill for a simple edit like this. I use mplayer to find the timecodes where I want to make the cuts. For example, if I have a 2-hour video and I want to chop out a 5-minute segment in the middle, I'd do the following: 1. Play the video with mplayer and identify the timecodes where the corruption begins and ends: mplayer orig.mp4 Type a lowercase "o" to toggle the timecode display; it toggles between 4 states. To skip around, the left/right arrows skip a few seconds, the up/down arrows skip a minute, and the PgUp/PhDown keys skip 10 minutes. Space bar toggles pause/play. Let's say the corruption begins at timecode 01:22:20 and ends at 01:24:38. You'd want to extract two parts: a. Everything from the start of the video to 01:22:20, which is 1h 22m 20s, or 3600+1320+20s == 4940 seconds b. Everything from 01:24:38 to the end of the video 2. Extract the two parts of the video file, transcoding them and saving to an mkv file: ffmpeg -i orig.mp4 -t 4940 -acodec ac3 -vcodec libx264 -ab 256k part1.mkv ffmpeg -i orig.mp4 -ss 01:24:38 -acodec ac3 -vcodec libx264 -ab 256k part2.mkv 3. Merge the two parts together: mkvmerge -o fixed.mkv part1.mkv +part2.mkv 4. Optionally, convert back to mp4: ffmpeg -i fixed.mkv -acodec copy -vcodec copy fixed.mp4 On Tue, Mar 2, 2021 at 2:31 PM E. William Horne wrote: > My Quaker meeting has been having get-togethers via Zoom video > conferencing, and our host recorded a recent meeting on the subject of > de jure segregation. > > However, part of a video that the host streamed into the Zoom video > conference was defective, so I'm looking for open-source software that I > can use to cut that part out of the .mp4 recording of the meeting. > > All leads appreciated, and all suggestions welcome. Thank you for your > time. > > Bill Horne > > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > -- John Abreau / Executive Director, Boston Linux & Unix Email: abreauj at gmail.com / WWW http://www.abreau.net / PGP-Key-ID 0x920063C6 PGP-Key-Fingerprint A5AD 6BE1 FEFE 8E4F 5C23 C2D0 E885 E17C 9200 63C6 From david at thekramers.net Thu Mar 4 22:15:04 2021 From: david at thekramers.net (David Kramer) Date: Thu, 4 Mar 2021 22:15:04 -0500 Subject: [Discuss] Please help edit an mp4 file In-Reply-To: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> References: <58b4f111-9a59-4c80-016c-9ed582f819ac@gmail.com> Message-ID: <588dee8a-315c-c293-afd2-1e1e5c8fc255@thekramers.net> I use ffmpeg, but I wrote a script to make it easier to cut out the beginning or end of a video: # vidcut.sh infile outfile (start offset as hh:mm:ss) [length as hh:mm:ss] # Removes beginning and/or end of a file if [ -n "${4}" ] ; then ??????? lengthparm="-t ${4}" else ??????? lengthparm="" fi ffmpeg -i "${1}" -vcodec copy -acodec copy -ss ${3} ${lengthparm} "${2}" ls -alh? "${1}" "${2}" On 3/2/21 2:30 PM, E. William Horne wrote: > My Quaker meeting has been having get-togethers via Zoom video > conferencing, and our host recorded a recent meeting on the subject of > de jure segregation. > > However, part of a video that the host streamed into the Zoom video > conference was defective, so I'm looking for open-source software that > I can use to cut that part out of the .mp4 recording of the meeting. > > All leads appreciated, and all suggestions welcome. Thank you for your > time. > > Bill Horne > > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss From worley at alum.mit.edu Fri Mar 5 21:07:56 2021 From: worley at alum.mit.edu (Dale R. Worley) Date: Fri, 05 Mar 2021 21:07:56 -0500 Subject: [Discuss] Running things from initramfs Message-ID: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> Here's a messy problem. I suspect the answer is simple, but obscure: I have an Oracle Linux (a Red Hat derivative) computer and I'd like to run "xfs_repair /dev/mapper/ol-root". The problem of course is that partition is the root partition and xfs_repair can't operate on a partition that's mounted. If I could boot off a CD, it would be simple, but since this computer is remote, that's hard to do. I've recently found that you can edit the "kernel boot line" to include "rdinit=/bin/bash", and that causes the boot process to stop early, with only the initramfs mounted and you talking to a Bash shell. The problem is that this environment is not at all set up, and even /dev is nearly empty. There is an xfs_repair binary, so I figure if I could just get /dev/mapper/ol-root set up correctly, I could repair it. There is an "lvm" binary, and it seems to support the usual commands, but I can't get it to set up /dev/mapper. When I run "lvm" it complains about (IIRC) /proc and /sys not containing what it wants. I've discovered that I can do "mount -t proc non /proc" and similarly for /sys and those seem to work. That stops "lvm" from complaining but it doesn't cause it to populate /dev/mapper. Trying to trace how the normal boot works looks hard. Among other thngs, there seems to be a complete copy of systemd on initramfs! Does anyone know how to get LVM working in this situation? Dale From me at mattgillen.net Sat Mar 6 00:46:09 2021 From: me at mattgillen.net (Matthew Gillen) Date: Sat, 6 Mar 2021 00:46:09 -0500 Subject: [Discuss] Running things from initramfs In-Reply-To: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> References: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> Message-ID: <8fb139fe-7edf-053d-1146-1d5d5c78385b@mattgillen.net> On 3/5/2021 9:07 PM, Dale R. Worley wrote: > Here's a messy problem. I suspect the answer is simple, but obscure: > > I have an Oracle Linux (a Red Hat derivative) computer and I'd like to > run "xfs_repair /dev/mapper/ol-root". The problem of course > is that partition is the root partition and xfs_repair can't operate > on a partition that's mounted. If I could boot off a CD, it would be > simple, but since this computer is remote, that's hard to do. I've recently > found that you can edit the "kernel boot line" to include > "rdinit=/bin/bash", and that causes the boot process to stop early, > with only the initramfs mounted and you talking to a Bash shell. > > The problem is that this environment is not at all set up, and even > /dev is nearly empty. There is an xfs_repair binary, so I figure if I > could just get /dev/mapper/ol-root set up correctly, I could > repair it. There is an "lvm" binary, and it seems to support the > usual commands, but I can't get it to set up /dev/mapper. > > When I run "lvm" it complains about (IIRC) /proc and /sys not > containing what it wants. I've discovered that I can do "mount -t > proc non /proc" and similarly for /sys and those seem to work. That > stops "lvm" from complaining but it doesn't cause it to populate > /dev/mapper. > Dale, You could try the rescue target by adding this to your kernel command line instead of changing the rdinit: systemd.unit=rescue.target or if that mounts your root fs and does the chroot, try emergency mode: systemd.unit=emergency.target If your initramfs contains systemd, then try just starting the local-fs.target (try "systemctl start local-fs.target"). That might set everything up that you need. With luck it doesn't do the chroot to your LVM/XFS root filesystem. If that doesn't work, this might give you some hints about using systemd to mount the right stuff: https://www.golinuxcloud.com/mount-filesystem-without-fstab-systemd-rhel-8/ Finally, if you get frustrated and feel like you trust your backups, the option is called dangerous, but one thing you could try is boot to single-user mode, then remount the root filesystem read-only: mount -o remount,ro / Then do the dangerous repair on a mounted filesystem: xfs_repair -d /dev/mapper/ol-root Then reboot. HTH, Matt From grg-webvisible+blu at ai.mit.edu Sat Mar 6 10:25:25 2021 From: grg-webvisible+blu at ai.mit.edu (grg) Date: Sat, 6 Mar 2021 10:25:25 -0500 Subject: [Discuss] Running things from initramfs In-Reply-To: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> References: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> Message-ID: <20210306152525.GF3085@csail.mit.edu> On Fri, Mar 05, 2021 at 09:07:56PM -0500, Dale R. Worley wrote: > The problem is that this environment is not at all set up, and even > /dev is nearly empty. There is an xfs_repair binary, so I figure if I > could just get /dev/mapper/ol-root set up correctly, I could > repair it. There is an "lvm" binary, and it seems to support the > usual commands, but I can't get it to set up /dev/mapper. ... > Does anyone know how to get LVM working in this situation? I don't, but if I google "xfs_repair lvm oracle" the top result is: https://prasadlinuxblog.wordpress.com/2017/12/26/xfs_check-and-xfs_repair-of-lvm-under-rescue-mode-on-centos-7-oraclelinux-7/ which looks like it might be your answer, if vgscan and vgchange are in that environment? they talk about rescue mode (is that only on CD?), you seem to be forcing the initramfs environment to be interactive (which surprises me that it works remotely -- do you have a way of getting to a serial console or something? or does it really set up sshd for you?), so it's not clear whether it applies - but worth checking for vgscan and vgchange and trying this out. if that fails, plan b (or c or d, after the suggestions from others): > I have an Oracle Linux (a Red Hat derivative) computer and I'd like to > run "xfs_repair /dev/mapper/ol-root". The problem of course > is that partition is the root partition and xfs_repair can't operate > on a partition that's mounted. If I could boot off a CD, it would be > simple, but since this computer is remote, that's hard to do. what does your partition table look like? if you have empty space, easy, just make a new root in it and boot to that, then do whatever you like with lvm and xfs_repair. (not likely, but worth checking) if there's no unused space on disk but you have /tmp in its own partition *on disk* (not tmpfs=ramdisk), you could temporarily cannibalize that - make a tmpfs /tmp to use temporarily (or permanently!), then set up the normally-/tmp disk partition to be a minimal root, and boot to it. more likely than the above, assuming you have a swap partition, you could temporarily cannibalize it and put a root there. as long as you have enough ram to do what you're doing (a few gb for this temporary usage?), things run fine without swap. getting into the more desperate scenarios now, if none of the above apply but there are partitions other than / (e.g. /home), you could set up a root in a subdirectory there (e.g. /home/minimalroot/) and fiddle with your boot process to boot root out of that subdir. a quick google search gives this answer for debian, inside the initramfs environment you're already using: https://unix.stackexchange.com/questions/39423/boot-linux-system-from-a-subdirectory-on-a-partition or if you have enough ram (maybe even 8gb would work?) there are ways to set up your system to move root to a tmpfs after boot. either as part of the boot process, or (harder) after boot in a running system, using pivot_root -- doing that in the running system, google suggests https://unix.stackexchange.com/questions/226872/how-to-shrink-root-filesystem-without-booting-a-livecd/227318#227318 (which is about shrinking a partition, but applies equally to repairing) then you can unmount your real root partition and have your way with it. if any of these options are actually bad ideas (aside from all of this being dangerous) or just won't work, I'm hoping others on the list will pipe in and explain why. I make no guarantees. :) --grg From dsr at randomstring.org Sat Mar 6 10:38:58 2021 From: dsr at randomstring.org (Dan Ritter) Date: Sat, 6 Mar 2021 10:38:58 -0500 Subject: [Discuss] Running things from initramfs In-Reply-To: <20210306152525.GF3085@csail.mit.edu> References: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> <20210306152525.GF3085@csail.mit.edu> Message-ID: grg wrote: > On Fri, Mar 05, 2021 at 09:07:56PM -0500, Dale R. Worley wrote: > > I have an Oracle Linux (a Red Hat derivative) computer and I'd like to > > run "xfs_repair /dev/mapper/ol-root". The problem of course > > is that partition is the root partition and xfs_repair can't operate > > on a partition that's mounted. If I could boot off a CD, it would be > > simple, but since this computer is remote, that's hard to do. > more likely than the above, assuming you have a swap partition, you could > temporarily cannibalize it and put a root there. as long as you have > enough ram to do what you're doing (a few gb for this temporary usage?), > things run fine without swap. This is an excellent idea. You should not run out of memory under normal conditions, and especially not when you are just running an emergency environment and fsck. -dsr- From darose at darose.net Sat Mar 6 12:05:57 2021 From: darose at darose.net (David Rosenstrauch) Date: Sat, 6 Mar 2021 12:05:57 -0500 Subject: [Discuss] Running things from initramfs In-Reply-To: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> References: <87y2f1c9vn.fsf@hobgoblin.ariadne.com> Message-ID: <49082711-b356-4084-866e-b29e26462758@darose.net> On 3/5/21 9:07 PM, Dale R. Worley wrote: > Here's a messy problem. I suspect the answer is simple, but obscure: > > I have an Oracle Linux (a Red Hat derivative) computer and I'd like to > run "xfs_repair /dev/mapper/ol-root". The problem of course > is that partition is the root partition and xfs_repair can't operate > on a partition that's mounted. If I could boot off a CD, it would be > simple, but since this computer is remote, that's hard to do. Any chance you could get a KVM hooked up to the machine and then admin it remotely through the KVM? DR From jdm at moylan.us Thu Mar 11 11:31:44 2021 From: jdm at moylan.us (dan moylan) Date: Thu, 11 Mar 2021 11:31:44 -0500 Subject: [Discuss] bluetooth Message-ID: running fc33 gnome on a lenevo T430 and attempting to send audio via an esinkin wireless bluetooth audio adapter to a nearby radio aux input. in settings, bluetooth, i see the adapter and heard a reassuring bleep when it showed connected. nonetheless, audio files still come out of the computer speakers rather than the remote radio. what do i need to do? ole dan j. daniel moylan 84 harvard ave brookline, ma 02446-6202 617-777-0207 (cel) jdm at moylan.us www.moylan.us [BLM] From epp at caramail.com Thu Mar 11 12:55:39 2021 From: epp at caramail.com (Edward) Date: Thu, 11 Mar 2021 12:55:39 -0500 Subject: [Discuss] bluetooth In-Reply-To: References: Message-ID: <140125ac-47e6-3006-05c6-569257958875@caramail.com> On 3/11/21 11:31 AM, dan moylan wrote: > running fc33 gnome on a lenevo T430 and attempting to send > audio via an esinkin wireless bluetooth audio adapter to a > nearby radio aux input. in settings, bluetooth, i see the > adapter and heard a reassuring bleep when it showed > connected. nonetheless, audio files still come out of the > computer speakers rather than the remote radio. what do i > need to do? > > ole dan > > j. daniel moylan > 84 harvard ave > brookline, ma 02446-6202 > 617-777-0207 (cel) > jdm at moylan.us > www.moylan.us > [BLM] Hello Dan, Given my recent issues with Bluetooth, it seems like I've almost become an expert on the subject!? :-) I am using a USB Bluetooth dongle on the PC, that was described (on Amazon) as working with Linux. Technically, it does. I'm running Debian 10 here and have the following packages installed. Possibly, one or more might not be installed? bluetooth bluez bluex-obexd bluez-tools blueman (Bluetooth device manager) pulseaudio-module-bluetooth broadcom-bt-firmware (was found on GitHub for the USB dongle to work with Debian) There have been times when I have a Bluetooth device (headphones) paired, yet the audio comes out of the wired speakers instead. This occurs if I am trying to change the Bluetooth profile from A2DP (for music) to HSP.HFP (for conferencing). This usually corrects itself, if I remove the headphones from the Bluetooth Manager and add them back in. Have you tried un-pairing the radio and re-pair it? I have several Bluetooth headphones and discovered some do not support the HSP/HFP profile, while others support both it and A2DP. It's possible that the radio does not support one of these profiles. Note that I have never tried connecting a physical Bluetooth speaker (or radio) to the PC, only headphones. Hope this info is helpful in some way. -- Linux. A Continual Learning Experience. From gaf.linux at gmail.com Thu Mar 11 15:25:40 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Thu, 11 Mar 2021 15:25:40 -0500 Subject: [Discuss] bluetooth In-Reply-To: References: Message-ID: In fedora, go to settings/sound and select the input device. -- Jerry Feldman Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6 B B6E7 On Thu, Mar 11, 2021, 11:33 AM dan moylan wrote: > > running fc33 gnome on a lenevo T430 and attempting to send > audio via an esinkin wireless bluetooth audio adapter to a > nearby radio aux input. in settings, bluetooth, i see the > adapter and heard a reassuring bleep when it showed > connected. nonetheless, audio files still come out of the > computer speakers rather than the remote radio. what do i > need to do? > > ole dan > > j. daniel moylan > 84 harvard ave > brookline, ma 02446-6202 > 617-777-0207 (cel) > jdm at moylan.us > www.moylan.us > [BLM] > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > From eric.chadbourne at icloud.com Thu Mar 11 17:44:42 2021 From: eric.chadbourne at icloud.com (Eric Chadbourne) Date: Thu, 11 Mar 2021 22:44:42 -0000 Subject: [Discuss] bluetooth Message-ID: <9ee16ded-9557-4790-9c1d-10215cee5c59@me.com> Similar here in Ubuntu.? Settings / Bluetooth.? Settings / Sound.? Seems to be better than it was a few years back. I left fedora around 5 when they purposely broke proprietary video drivers.? Are they more stable now? Eric On March 11, 2021 at 3:26 PM, Jerry Feldman wrote: In fedora, go to settings/sound and select the input device. -- Jerry Feldman Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6 B B6E7 On Thu, Mar 11, 2021, 11:33 AM dan moylan wrote: running fc33 gnome on a lenevo T430 and attempting to send audio via an esinkin wireless bluetooth audio adapter to a nearby radio aux input. in settings, bluetooth, i see the adapter and heard a reassuring bleep when it showed connected. nonetheless, audio files still come out of the computer speakers rather than the remote radio. what do i need to do? ole dan j. daniel moylan 84 harvard ave brookline, ma 02446-6202 617-777-0207 (cel) jdm at moylan.us www.moylan.us [BLM] _______________________________________________ Discuss mailing list Discuss at lists.blu.org http://lists.blu.org/mailman/listinfo/discuss _______________________________________________ Discuss mailing list Discuss at lists.blu.org http://lists.blu.org/mailman/listinfo/discuss From gaf.linux at gmail.com Thu Mar 11 18:22:28 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Thu, 11 Mar 2021 18:22:28 -0500 Subject: [Discuss] bluetooth In-Reply-To: <9ee16ded-9557-4790-9c1d-10215cee5c59@me.com> References: <9ee16ded-9557-4790-9c1d-10215cee5c59@me.com> Message-ID: Additionally you can control Pulse Audio from the command line using the 'pacmd' command. I know Dan sometimes prefers the command line. -- Jerry Feldman Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6 B B6E7 On Thu, Mar 11, 2021, 5:46 PM Eric Chadbourne wrote: > Similar here in Ubuntu. Settings / Bluetooth. Settings / Sound. Seems > to be better than it was a few years back. > > > > I left fedora around 5 when they purposely broke proprietary video > drivers. Are they more stable now? > > > > Eric > > > On March 11, 2021 at 3:26 PM, Jerry Feldman wrote: > > > In fedora, go to settings/sound and select the input device. > > -- > Jerry Feldman > Boston Linux and Unix http://www.blu.org > PGP key id: 6F6BB6E7 > PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6 > B B6E7 > > On Thu, Mar 11, 2021, 11:33 AM dan moylan wrote: > > > > > running fc33 gnome on a lenevo T430 and attempting to send > audio via an esinkin wireless bluetooth audio adapter to a > nearby radio aux input. in settings, bluetooth, i see the > adapter and heard a reassuring bleep when it showed > connected. nonetheless, audio files still come out of the > computer speakers rather than the remote radio. what do i > need to do? > > > ole dan > > > j. daniel moylan > 84 harvard ave > brookline, ma 02446-6202 > 617-777-0207 (cel) > jdm at moylan.us > > www.moylan.us > > [BLM] > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > > http://lists.blu.org/mailman/listinfo/discuss > > > > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > From jdm at moylan.us Fri Mar 12 16:26:02 2021 From: jdm at moylan.us (dan moylan) Date: Fri, 12 Mar 2021 16:26:02 -0500 Subject: [Discuss] bluetooth Message-ID: > On Thu, Mar 11, 2021, 5:46 PM Eric Chadbourne wrote: > Similar here in Ubuntu. Settings / Bluetooth. Settings / Sound. Seems > to be better than it was a few years back. yes, i went on settings to bluetooth and my little device shows as connected. i went on settings to sound and the only sound output shown is "speakers -- built in audio", and that's where the sound comes out. i have no idea how to connect to the device rather than the built in speakers. > On Thu, Mar 11, 2021, 5:46 PM Eric Chadbourne wrote: > Additionally you can control Pulse Audio from the command > line using the 'pacmd' command. I know Dan sometimes prefers > the command line. i do, when i know what i'm doing. # hcitool scan # Scanning ... # EB:06:EF:29:5D:1B Esinkin BT Adapter # 5C:41:5A:5B:CC:B3 michael's Fire haven't yet figured how to use pacmd or pactl to achieve the connection. ole dan j. daniel moylan 84 harvard ave brookline, ma 02446-6202 617-777-0207 (cel) jdm at moylan.us www.moylan.us [BLM] From david at thekramers.net Sat Mar 13 04:24:11 2021 From: david at thekramers.net (David Kramer) Date: Sat, 13 Mar 2021 04:24:11 -0500 Subject: [Discuss] bluetooth In-Reply-To: References: Message-ID: <2656b6c1-6cbf-dcba-f18c-392e5e3de072@thekramers.net> If you're seeing it connected, but not seeing it as a output device, is it possible you're actually connecting to some other bluetooth device?? Sometimes I debug this by turning off the device, have the Linux box scan, then turn it on while it's scanning.? If it shows up while turned off you're seeing the wrong device.? If it doesn't show up even after turning it on, then you're seeing the wrong device. On 3/12/21 4:26 PM, dan moylan wrote: > >> On Thu, Mar 11, 2021, 5:46 PM Eric Chadbourne > wrote: > >> Similar here in Ubuntu. Settings / Bluetooth. Settings / Sound. Seems >> to be better than it was a few years back. > yes, i went on settings to bluetooth and my little device > shows as connected. i went on settings to sound and the > only sound output shown is "speakers -- built in audio", and > that's where the sound comes out. i have no idea how to > connect to the device rather than the built in speakers. > >> On Thu, Mar 11, 2021, 5:46 PM Eric Chadbourne > wrote: > >> Additionally you can control Pulse Audio from the command >> line using the 'pacmd' command. I know Dan sometimes prefers >> the command line. > i do, when i know what i'm doing. > > # hcitool scan > # Scanning ... > # EB:06:EF:29:5D:1B Esinkin BT Adapter > # 5C:41:5A:5B:CC:B3 michael's Fire > > haven't yet figured how to use pacmd or pactl to achieve the > connection. > > ole dan > > j. daniel moylan > 84 harvard ave > brookline, ma 02446-6202 > 617-777-0207 (cel) > jdm at moylan.us > www.moylan.us > [BLM] > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss From gaf.linux at gmail.com Sat Mar 13 07:26:29 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Sat, 13 Mar 2021 07:26:29 -0500 Subject: [Discuss] Boston Linux VIRTUAL Meeting Wednesday, March 17, 2021 - Linux Soup XVII Message-ID: <9938f0e0-0525-c591-be4d-9ac8a4b83e6c@gmail.com> When: March 17, 2021 7:00PM EDT (6:30PM for Q&A) Topic: Linux Soup XVII Moderator: Christoph Doerbeck Location: Online: https://meet.jit.si/blu.org Live stream: https://youtu.be/LabGDr3bcks Summary: Christoph Doerbeck's traditional March talk and demo Abstract: More details will be added later For further information and directions please consult the BLU Web site: http://www.blu.org -- Jerry Feldman > Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1? 3050 5715 B88D 6F6 B B6E7 _______________________________________________ Announce mailing list Announce at lists.blu.org http://lists.blu.org/mailman/listinfo/announce From jdm at moylan.us Sat Mar 13 12:06:57 2021 From: jdm at moylan.us (dan moylan) Date: Sat, 13 Mar 2021 12:06:57 -0500 Subject: [Discuss] bluetooth Message-ID: dave kramer writes: > If you're seeing it connected, but not seeing it as a output > device, is it possible you're actually connecting to some > other bluetooth device?? Sometimes I debug this by turning > off the device, have the Linux box scan, then turn it on > while it's scanning.? If it shows up while turned off you're > seeing the wrong device.? If it doesn't show up even after > turning it on, then you're seeing the wrong device. my apologies to everyone. i never understood the little popup when i connected the bluetooth adapter. i saw the bar to "remove device" but didn't see the little "connection" button -- my bad. now connected and working as advertised. irish music now blaring from the radio in anticipation of st patricks day. thanks to all, ole dan j. daniel moylan 84 harvard ave brookline, ma 02446-6202 617-777-0207 (cel) jdm at moylan.us www.moylan.us [BLM] From gaf.linux at gmail.com Sat Mar 13 16:38:17 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Sat, 13 Mar 2021 16:38:17 -0500 Subject: [Discuss] bluetooth In-Reply-To: References: Message-ID: Good news Dan. On Sat, Mar 13, 2021 at 12:09 PM dan moylan wrote: > > dave kramer writes: > > If you're seeing it connected, but not seeing it as a output > > device, is it possible you're actually connecting to some > > other bluetooth device? Sometimes I debug this by turning > > off the device, have the Linux box scan, then turn it on > > while it's scanning. If it shows up while turned off you're > > seeing the wrong device. If it doesn't show up even after > > turning it on, then you're seeing the wrong device. > > my apologies to everyone. i never understood the little > popup when i connected the bluetooth adapter. i saw the bar > to "remove device" but didn't see the little "connection" > button -- my bad. now connected and working as advertised. > > irish music now blaring from the radio in anticipation of st > patricks day. > > thanks to all, > ole dan > > j. daniel moylan > 84 harvard ave > brookline, ma 02446-6202 > 617-777-0207 (cel) > jdm at moylan.us > www.moylan.us > [BLM] > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > -- -- Jerry Feldman Boston Linux and Unix PGP key id: 6F6BB6E7 Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6B B6E7 From epp at caramail.com Sun Mar 14 17:25:03 2021 From: epp at caramail.com (Edward) Date: Sun, 14 Mar 2021 17:25:03 -0400 Subject: [Discuss] Firefox and Thunderbird not behaving with conflicting info regarding default browser Message-ID: <4e3eb041-56be-f5ba-a3ec-21c42e4517ac@caramail.com> Running Debian 10 (stable) with Trinity Desktop Environment (based on KDE 3.5). Having some issues with Firefox and Thunderbird, in that they do not seem to be playing nice with the system. If I open an e-mail with Thunderbird and click a link, instead of Firefox opening up the web page, Thunderbird erroneously and automatically creates an account 'Blogs & News Feeds' and thinks the URL is a feed. This does not happen all the time, but happens enough times that it has now become an annoyance. When I check the system for the default browser, it is giving me two different answers: ~$ update-alternatives --config x-www-browser There are 4 choices for the alternative x-www-browser (providing /usr/bin/x-www-browser). ? Selection??? Path??????????????????????? Priority?? Status ------------------------------------------------------------ * 0??????????? /usr/bin/vivaldi-stable????? 200?????? auto mode ? 1??????????? /opt/trinity/bin/konqueror?? 100?????? manual mode ? 2??????????? /usr/bin/firefox-esr???????? 70??????? manual mode ? 3??????????? /usr/bin/vivaldi-snapshot??? 0???????? manual mode ? 4??????????? /usr/bin/vivaldi-stable????? 200?????? manual mode Press to keep the current choice[*], or type selection number: :~$ xdg-settings get default-web-browser firefox-esr.desktop Firefox ESR is their Extended Service Release of the browser. Upon checking the Firefox preferences, it is displaying that it is *not* the default browser, even though xdg-settings clearly is saying it is. When I launch Vivaldi stable and check the settings, that is telling me that Vivaldi is also *not* the default web browser. As Trinity is based on KDE, it also includes Konqueror, primarily as a file manager, but obviously also as a web browser. I also have PCManFM-Qt installed as a file manager, thinking that Konqueror could be the cause of the issue, since something seems to be switching Firefox from being the default browser, to not being the default. But when I have used PCManFM as a file manager, I am still seeing this issue with the browsers and Thunderbird. Could there be some explanation as to what is going on? Thanks in advance. -- Linux. A Continual Learning Experience. From gaf.linux at gmail.com Tue Mar 16 12:30:52 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Tue, 16 Mar 2021 12:30:52 -0400 Subject: [Discuss] Boston Linux VIRTUAL Meeting reminder, tomorrow Wednesday, March 17, 2021 - Linux Soup XVII Message-ID: When: March 17, 2021 7:00PM EDT (6:30PM for Q&A) Topic: Linux Soup XVII Moderator: Christoph Doerbeck Location: Online: https://meet.jit.si/blu.org Live stream: https://youtu.be/LabGDr3bcks Summary: Christoph Doerbeck's traditional March talk and demo Abstract: Red Hat Enterprise Linux 8 was released almost 2 years ago.? With an eye towards identifying differences from RHEL 7, this session will present what you need to know about the operating system including foundational component updates and new tools you should be aware of.? We will also cover some highlights from the minor releases (8.1, 8.2 and 8.3). For further information and directions please consult the BLU Web site: http://www.blu.org -- Jerry Feldman > Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1? 3050 5715 B88D 6F6 B B6E7 _______________________________________________ Announce mailing list Announce at lists.blu.org http://lists.blu.org/mailman/listinfo/announce From worley at alum.mit.edu Wed Mar 17 22:33:17 2021 From: worley at alum.mit.edu (Dale R. Worley) Date: Wed, 17 Mar 2021 22:33:17 -0400 Subject: [Discuss] Running things from initramfs Message-ID: <87mtv1198y.fsf@hobgoblin.ariadne.com> Thanks to everyone for ideas! Out of cussedness, I dug enough to figure out how to get at the disk partitions from the initramfs environment. The details of the procedure depend on your initramfs environment and disk configuration, but the pattern is simple enough that having seen an example, you can probably make it work on lots of systems. I'm sure there are better ways of getting "single user" mode working, but this method is very quick for the things it works for. Dale ---------- Reboot the host. Once the boot menu shows, type down-arrow to stop the boot countdown timer and then up-arrow to return to the boot menu entry that normally boots. Type "e" to edit the boot commands for the menu entry. This puts you into a simple editor. Go down to the command starting "linux16", "lunuxuefi", or similar. Go to its end and add a parameter "rdinit=/bin/bash". Type control-x to cause the edited boot commands to be executed. After a few seconds, you will get a shell prompt "#". The system is running from the initramfs with a very impoverished set of utilities. If the builders of the initramfs have been smart, the partition-repair utility for the root partition's filesystem (e.g. xfs_repair, fsck.ext4) is present. Add /usr/sbin to the path for convenience: # PATH=$PATH:/usr/sbin Set up the internal utility filesystems: # mount -t devtmpfs devtmpfs /dev # mount -t proc proc /proc # mount -t sysfs sysfs /sys Further steps are to install kernel modules needed for disk access. There seems to be no reliable way to determine the modules that are needed. I have done "lsmod" on a running system, examined the listed modules (with non-zero use counts), and guessed from their names which ones are relevant. There seems to be no downside to loading unneeded modules, so exploration should work OK. Install the kernel modules for the disk's hardware attachment. I have used: # modprobe ata_piix # modprobe libata # modprobe megaraid_sas Install the SCSI disk driver: # modprobe sd_mod At this point, you should be able to see the disk devices: # ls /dev/sda* /dev/sda /dev/sda1 /dev/sda2 If the root partition is an LVM partition, set up LVM: # lvm vgchange -ay # lvm vgscan --mknodes # ls /dev/mapper control ol_oracle7-root ol_oracle7-swap If you need to mount the partition, load the modules for the filesystem type: # modprobe xfs # modprobe ext4 You can now do management operations like: # xfs_repair /dev/sda1 # mkdir /mnt ; mount /dev/mapper/ol_oracle7-root /mnt To exit the initramfs environment, use "shutdown". In my experience, this "shutdown" accepts the normal shutdown options but always reboots: # ./shutdown now From me at mattgillen.net Thu Mar 18 00:15:41 2021 From: me at mattgillen.net (Matthew Gillen) Date: Thu, 18 Mar 2021 00:15:41 -0400 Subject: [Discuss] bluetooth In-Reply-To: <9ee16ded-9557-4790-9c1d-10215cee5c59@me.com> References: <9ee16ded-9557-4790-9c1d-10215cee5c59@me.com> Message-ID: <8d302028-aee0-33ed-737a-962ea859befb@mattgillen.net> On 3/11/2021 5:44 PM, Eric Chadbourne wrote: > I left fedora around 5 when they purposely broke proprietary video > drivers.? Are they more stable now? I would characterize the situation a little differently; the distro had rules about mainline, and for kernel modules that couldn't be in mainline (I would lay the blame here on hardware manufactures rather than the distro) there were not great solutions. If you're referring specifically to nvidia, I don't use my laptop with an nvidia card for much these days except zoom/jitsi/teams, but I've been very happy with the nouveau driver in the last couple fedora releases and just ignoring the mess of trying to keep up with nvidia's broken process for linux driver management (e.g. remembering which magic three digit number corresponded to the proper legacy driver for my hardware after they stopped supporting my card with new releases) and figuring out whether I need to use Xorg or wayland or whatever. That box has a pretty old nvidia card though, YMMV. Matt From eric.chadbourne at icloud.com Thu Mar 18 11:46:19 2021 From: eric.chadbourne at icloud.com (Eric Chadbourne) Date: Thu, 18 Mar 2021 11:46:19 -0400 Subject: [Discuss] bluetooth In-Reply-To: <8d302028-aee0-33ed-737a-962ea859befb@mattgillen.net> References: <8d302028-aee0-33ed-737a-962ea859befb@mattgillen.net> Message-ID: <7A99EEF5-F04A-4713-9684-0E13A370AD00@icloud.com> > On Mar 18, 2021, at 12:16 AM, Matthew Gillen wrote: > > ?On 3/11/2021 5:44 PM, Eric Chadbourne wrote: >> I left fedora around 5 when they purposely broke proprietary video >> drivers. Are they more stable now? > > I would characterize the situation a little differently; the distro had > rules about mainline, and for kernel modules that couldn't be in > mainline (I would lay the blame here on hardware manufactures rather > than the distro) there were not great solutions. > > If you're referring specifically to nvidia, I don't use my laptop with > an nvidia card for much these days except zoom/jitsi/teams, but I've > been very happy with the nouveau driver in the last couple fedora > releases and just ignoring the mess of trying to keep up with nvidia's > broken process for linux driver management (e.g. remembering which magic > three digit number corresponded to the proper legacy driver for my > hardware after they stopped supporting my card with new releases) and > figuring out whether I need to use Xorg or wayland or whatever. That > box has a pretty old nvidia card though, YMMV. > > Matt > _ That's good to hear. I took notes during the very informative BLU meeting. Inspiration to catch up on RedHat's offerings. Thanks, Eric C From eric.chadbourne at icloud.com Thu Mar 18 13:01:09 2021 From: eric.chadbourne at icloud.com (Eric Chadbourne) Date: Thu, 18 Mar 2021 13:01:09 -0400 Subject: [Discuss] bluetooth Message-ID: ? > On Mar 18, 2021, at 12:16 AM, Matthew Gillen wrote: > > ?On 3/11/2021 5:44 PM, Eric Chadbourne wrote: >> I left fedora around 5 when they purposely broke proprietary video >> drivers. Are they more stable now? > > I would characterize the situation a little differently; the distro had > rules about mainline, and for kernel modules that couldn't be in > mainline (I would lay the blame here on hardware manufactures rather > than the distro) there were not great solutions. > > If you're referring specifically to nvidia, I don't use my laptop with > an nvidia card for much these days except zoom/jitsi/teams, but I've > been very happy with the nouveau driver in the last couple fedora > releases and just ignoring the mess of trying to keep up with nvidia's > broken process for linux driver management (e.g. remembering which magic > three digit number corresponded to the proper legacy driver for my > hardware after they stopped supporting my card with new releases) and > figuring out whether I need to use Xorg or wayland or whatever. That > box has a pretty old nvidia card though, YMMV. > > Matt > _ That's good to hear. I took notes during the very informative BLU meeting. Inspiration to catch up on RedHat's offerings. Thanks, Eric C From gaf.linux at gmail.com Sun Mar 21 10:07:19 2021 From: gaf.linux at gmail.com (Jerry Feldman) Date: Sun, 21 Mar 2021 10:07:19 -0400 Subject: [Discuss] bluetooth In-Reply-To: <7A99EEF5-F04A-4713-9684-0E13A370AD00@icloud.com> References: <8d302028-aee0-33ed-737a-962ea859befb@mattgillen.net> <7A99EEF5-F04A-4713-9684-0E13A370AD00@icloud.com> Message-ID: The meeting was recorded. JABR will post the video as soon as he has had time to edit it. On Thu, Mar 18, 2021 at 11:48 AM Eric Chadbourne wrote: > > > On Mar 18, 2021, at 12:16 AM, Matthew Gillen wrote: > > > > ?On 3/11/2021 5:44 PM, Eric Chadbourne wrote: > >> I left fedora around 5 when they purposely broke proprietary video > >> drivers. Are they more stable now? > > > > I would characterize the situation a little differently; the distro had > > rules about mainline, and for kernel modules that couldn't be in > > mainline (I would lay the blame here on hardware manufactures rather > > than the distro) there were not great solutions. > > > > If you're referring specifically to nvidia, I don't use my laptop with > > an nvidia card for much these days except zoom/jitsi/teams, but I've > > been very happy with the nouveau driver in the last couple fedora > > releases and just ignoring the mess of trying to keep up with nvidia's > > broken process for linux driver management (e.g. remembering which magic > > three digit number corresponded to the proper legacy driver for my > > hardware after they stopped supporting my card with new releases) and > > figuring out whether I need to use Xorg or wayland or whatever. That > > box has a pretty old nvidia card though, YMMV. > > > > Matt > > _ > > That's good to hear. > > I took notes during the very informative BLU meeting. Inspiration to > catch up on RedHat's offerings. > > Thanks, > > Eric C > > > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > -- -- Jerry Feldman Boston Linux and Unix PGP key id: 6F6BB6E7 Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6B B6E7 From abreauj at gmail.com Mon Mar 22 21:35:49 2021 From: abreauj at gmail.com (John Abreau) Date: Mon, 22 Mar 2021 21:35:49 -0400 Subject: [Discuss] bluetooth In-Reply-To: References: <8d302028-aee0-33ed-737a-962ea859befb@mattgillen.net> <7A99EEF5-F04A-4713-9684-0E13A370AD00@icloud.com> Message-ID: The video has been posted. On Sun, Mar 21, 2021 at 10:08 AM Jerry Feldman wrote: > The meeting was recorded. JABR will post the video as soon as he has had > time to edit it. > > On Thu, Mar 18, 2021 at 11:48 AM Eric Chadbourne < > eric.chadbourne at icloud.com> > wrote: > > > > > > On Mar 18, 2021, at 12:16 AM, Matthew Gillen > wrote: > > > > > > ?On 3/11/2021 5:44 PM, Eric Chadbourne wrote: > > >> I left fedora around 5 when they purposely broke proprietary video > > >> drivers. Are they more stable now? > > > > > > I would characterize the situation a little differently; the distro had > > > rules about mainline, and for kernel modules that couldn't be in > > > mainline (I would lay the blame here on hardware manufactures rather > > > than the distro) there were not great solutions. > > > > > > If you're referring specifically to nvidia, I don't use my laptop with > > > an nvidia card for much these days except zoom/jitsi/teams, but I've > > > been very happy with the nouveau driver in the last couple fedora > > > releases and just ignoring the mess of trying to keep up with nvidia's > > > broken process for linux driver management (e.g. remembering which > magic > > > three digit number corresponded to the proper legacy driver for my > > > hardware after they stopped supporting my card with new releases) and > > > figuring out whether I need to use Xorg or wayland or whatever. That > > > box has a pretty old nvidia card though, YMMV. > > > > > > Matt > > > _ > > > > That's good to hear. > > > > I took notes during the very informative BLU meeting. Inspiration to > > catch up on RedHat's offerings. > > > > Thanks, > > > > Eric C > > > > > > _______________________________________________ > > Discuss mailing list > > Discuss at lists.blu.org > > http://lists.blu.org/mailman/listinfo/discuss > > > > > -- > -- > Jerry Feldman > Boston Linux and Unix > PGP key id: 6F6BB6E7 > Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6B B6E7 > _______________________________________________ > Discuss mailing list > Discuss at lists.blu.org > http://lists.blu.org/mailman/listinfo/discuss > -- John Abreau / Executive Director, Boston Linux & Unix Email: abreauj at gmail.com / WWW http://www.abreau.net / PGP-Key-ID 0x920063C6 PGP-Key-Fingerprint A5AD 6BE1 FEFE 8E4F 5C23 C2D0 E885 E17C 9200 63C6 From matt at shields.tv Wed Mar 31 14:01:22 2021 From: matt at shields.tv (Matt Shields) Date: Wed, 31 Mar 2021 14:01:22 -0400 Subject: [Discuss] [Position-available] Icinga Expert Needed Message-ID: ------------------------------------------------------- To post your own position-available or position-wanted message, please follow the procedure at: https://blu.qualitybox.us/wiki/Job_posting_policy ------------------------------------------------------- I've used Nagios and Icinga for a long time, but it's been a couple years. They have since changed a lot. I need to get a demo system up and running but I've run into a few issues. Looking to pay someone that's familiar with all their latest options to help troubleshoot some config issues. Note, my work isn't paying for this, I'm paying out of my own pocket. I'm looking for 2-4 hours asap to look at my setup via screen sharing. I already have the demo server setup, have installed Icinga2, IcingaWeb2, Icinga Director, IDO MySQL, etc. I have Icinga Agent installed on a couple Linux and Windows servers. But here's what I'm having an issue with: - Endpoints/zones - Proper templates/groups - Linux & Windows agents - Auto provisioning agents Email me directly and let me know what your experience is and hourly rate. Matt Shields matt at shields.tv 781-424-3531