Alfred von Campe wrote:
On Aug 2, 2006, at 11:12, Matty wrote:
I would also recommend running a long SMART self-test on the drive.
If you capture the SMART attributes before and after the test, it is
actually pretty easy to locate the source of the problem (e.g., host
controller vs disk disk vs. bad sector ) by comparing the SMART
attributes that were captured. If you want additional details, check
out the following article:
Thanks for the URL. I'd love to run a SMART analysis, but apparently
smartctl doesn't support SATA drives. At least the version that comes
with CentOS doesn't (I haven't tried to rebuild it from sources - yet)!
I tried accessing the drive from the CentOS LiveCD, and wasn't
successful. There are two partitions on the drive, one for /boot, and
the rest of the disk is managed by LVM. I was able to mount the / boot
partition, but I couldn't read the grub directory due to apparent
corruption (that's a bad sign right there). But maybe I can recover
some of the data from the rest of the disk. How do I mount the logical
partitions managed by LVM from the command line? I haven't had a
chance to google for this/read the man page, so if someone has a quick
synopsis handy, I would really appreciate it.
Alfred
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Alfred,
the CentOS smartctl _does_ work (for me at least) with SATA disks if you
use the "-d ata" option. So please try
smartctl -d ata -a /dev/sda
You can run a long test with
smartctl -d ata -t long /dev/sda
You better not try to e2fsck a dying disk ... try to copy it with
ddrescue, and run e2fsck on the copy, and mount the copy afterwards. An
external USB disk is very handy for that purpose.
Kay
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