dd and file compression experience
Scott Ehrlich
scott-DPNOqEs/LNQ at public.gmane.org
Fri Jul 6 10:19:13 EDT 2007
I just wanted to provide results of a recent experiment.
I had a new system configured as 50/50 dual-boot (XP Pro and CentOS 5).
A ghost image of XP Pro with high compression resulted in three 2 Gig
files plus a little left over.
Ghost can't handle the CentOS stuff at all, so I opted for a dd of the
drive. I used a Knoppix 5.1.1 CD, mounted a Windows box with a shared
folder, and ran dd if=/dev/sda|gzip > /mnt/shared_folder
When done, the file size was just 18 GB! I was very happy. I do believe
a successful aid was, as was mentioned here before, cleaning out /tmp then
running dd if=/dev/zero of=/tmp/foo then deleting /tmp/foo.
Thanks to all.
Now fighting split to break the file into 4 GB chunks to place onto DVD!
Scott
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