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Full Discussion: Corrupted Hard Drive
Operating Systems Linux Red Hat Corrupted Hard Drive Post 302382023 by fpmurphy on Monday 21st of December 2009 09:31:52 PM
Old 12-21-2009
The kernel panic is due to the nash script interpreter, which is part of initramfs ( switchroot, etc. are nash subcommands), being unable to mount the file systems.

Of more interest is the fact both logical volumes are not available according to the output from lvdisplay
Code:
...
LV Status NOT available
...

If the logical volumes are not available for some reason, then the filesystems on these logical volumes are not available, and thus cannot be mounted.

One possibility is that the LVM metadata is corrupt. LVM maintains the metadata backup in /etc/lvm/backup and /etc/lvm/archive, if you haven't turned off the auto backup feature of LVM. Try restoring the LVM metadata using vgcfgrestore. This should work if the damage to LVM metadata are minor. If the damage to LVM metadata is major, the disk will not be recognized. In such cases, you first need to restore the UUID for the missing device. To do so, compare the output of pvscan and cat /proc/partitions and paste the required UUID using the results of pvscan. You can then use vgcfgrestore to restore LVM metadata. If either of these methods work, make sure to fsck the filesystem(s) before mounting.
 

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DISTRO-INFO(1)						      General Commands Manual						    DISTRO-INFO(1)

NAME
distro-info - provides information about the distributions' releases SYNOPSIS
distro-info [OPTIONS] DESCRIPTION
distro-info is a symlink to the distro-info command for your distribution. On Debian it links to debian-distro-info and on Ubuntu it links to ubuntu-distro-info. All options described in this manual page are available in all distro-info commands. All other options, which are not described here, are distribution specific. OPTIONS
--date=DATE date for calculating the version (default: today) -h, --help display help message and exit -a, --all list all known versions -d, --devel latest development version -s, --stable latest stable version --supported list of all supported stable versions --unsupported list of all unsupported stable versions -c, --codename print the codename (default) -r, --release print the release version -f, --fullname print the full name SEE ALSO
debian-distro-info(1), ubuntu-distro-info(1) AUTHOR
The script and this manual page was written by Benjamin Drung <bdrung@debian.org>. distro-info January 2011 DISTRO-INFO(1)
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