Patrick Dupre wrote:
Hello,
I duplicate an hard drive to another one with logical partition.
I kept the / on a standard partition, put the /usr on /dev/VG1/usr, etc...
When I mount the logical partitions I do experience any problem but when
I boot the machine on the logical partition I get an error from the
/etc/fstab.
How did you duplicate the drive?
cp -a
(I used to do it that way).
fsck complains
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
I am using grub,
In the fstab I put:
/dev/VG1/usr /usr
Please post your entire /etc/fstab.
/dev/sdc5 / ext3 defaults 1 1
/dev/mapper/VG1-usr /usr ext3 defaults 1 2
/dev/VG1/usr_lib /usr/lib ext3 defaults 1 2
/dev/VG1/usr_local /usr/local ext3 defaults 1 2
/dev/VG1/usr_src /usr/src ext3 defaults 1 2
/dev/VG1/tmp /tmp ext3 defaults 1 2
/dev/VG1/home /home ext3 defaults 1 2
#/dev/VG1/backup /backup ext3 defaults 1 2
/dev/VG1/iso_image /iso-image ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/sdc1 swap swap defaults 0 0
/dev/fd0 /mnt/floppy msdos,auto noauto,user,umask=0 0 0
I did try /dev/VG1 and /dev/mapper with the same result.
I looks like that the logical partitions are not recognize by fsck, but it
works fine when I do the same from a properly boot disk.
fsck works find with LVM. I suspect that you may may have the wrong
LV and/or VG name. You may want to run lvscan to display the names.
ACTIVE '/dev/VG1/usr' [7.00 GB] inherit
ACTIVE '/dev/VG1/usr_lib' [6.00 GB] inherit
ACTIVE '/dev/VG1/usr_local' [5.00 GB] inherit
ACTIVE '/dev/VG1/usr_src' [5.00 GB] inherit
ACTIVE '/dev/VG1/tmp' [2.00 GB] inherit
ACTIVE '/dev/VG1/home' [9.00 GB] inherit
ACTIVE '/dev/VG1/backup' [9.00 GB] inherit
ACTIVE '/dev/VG1/iso_image' [10.00 GB] inherit
When I boot from the working disk.
Some ideas ?
Regards
--
---
==========================================================================
Patrick DUPRÉ | |
Department of Chemistry | | Phone: (44)-(0)-1904-434384
The University of York | | Fax: (44)-(0)-1904-432516
Heslington | |
York YO10 5DD United Kingdom | | email: pd520@xxxxxxxxxx
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