Ubuntu file system going into "lockdown" mode

[bogstad-e+AXbWqSrlAAvxtiuMwx3w at public.gmane.org (Bill Bogstad)]

On Sat, Oct 9, 2010 at 8:06 AM,  <edwardp-mh2Nk+tgbQM at public.gmane.org> wrote:
> I have Ubuntu 10.04.1 LTS installed on a 32-bit AMD Athlon system,
> memory is maxed out at 512Mb. ?On occasion, the system will stop
> running, when I go into the file manager, all of the icons have locks on
> them, meaning it has gone into read-only (lockdown) mode.
>
> Rebooting the system will take it into a file system check and will
> prompt to fix the errors (if there were any).

This normally happens due to disk not memory errors.  You should
really check the system log files in /var/log for error messages.  You
should also consider installing smartctl and using it
to query your drives for their internal error logs.

Good Luck,
Bill Bogstad