[CentOS] Ext4 on CentOS 5.5 x64

Sorin Srbu wrote:
<snip>
> 	Anyway, I get a bad block message when running fsck, and am not sure
> whether this is a interface problem between the chair and the monitor or
> something with the tech preview.
<snip>

Having just live through this issue, I recommend you run
the extended (long) SMART test on all your drives and check
the reports. The relevant package to install is smartmontools. 
It's worth investing a little time in setting up the package.
I ended up with this incantation in /etc/smartd.conf :

/dev/hda -T normal -p  -a -o on -S on -s (S/../.././02|L/../../6/03) -m root at localhost

To execute the extended tests (doesn't mess with your data):
# smartctl --test=long /dev/hda

To view the test results about 80 minutes later:
# smartctl --log=selftest /dev/hda

and so on.
-- 
Charles Polisher