On Sun, 19 Jul 2009 15:23:48 -0500
Ron Johnson <ron.l.john...@cox.net> wrote:
...
> Well, that didn't work...
>
> If I umount the fs, then power-down the enclosure, and power it back
> up, these are the results:
>
> # vgscan
> WARNING: Ignoring duplicate config node: filter (seeking filter)
> Reading all physical volumes. This may take a while...
> /dev/dm-1: read failed after 0 of 4096 at 2000380952576:
> Input/output error
> /dev/dm-1: read failed after 0 of 4096 at 2000381009920:
> Input/output error
> /dev/dm-1: read failed after 0 of 4096 at 0: Input/output error
> /dev/dm-1: read failed after 0 of 4096 at 4096: Input/output error
> /dev/dm-1: read failed after 0 of 4096 at 0: Input/output error
> Found volume group "backup_vg" using metadata type lvm2
> Found volume group "main_huge_vg" using metadata type lvm2
>
> # vgchange -a y backup_vg
> WARNING: Ignoring duplicate config node: filter (seeking filter)
> /dev/dm-1: read failed after 0 of 4096 at 0: Input/output error
> 1 logical volume(s) in volume group "backup_vg" now active
>
> # mount -v /mnt/backups
> mount: wrong fs type, bad option, bad superblock on
> /dev/mapper/backup_vg-backup_lv,
> missing codepage or helper program, or other error
> In some cases useful info is found in syslog - try
> dmesg | tail or so
>
>
> [28515.817160] EXT4-fs: unable to read superblock
> [28515.817343] EXT3-fs: unable to read superblock
> [28722.859373] EXT4-fs: unable to read superblock
> [28722.859458] EXT3-fs: unable to read superblock
>
> Reboot and it works fine.
I use lvm on an external USB disk, and I also get those messages ('read
failed after 0 of 4096') when the disk goes offline and then returns.
What seems to work for me is '/etc/init.d/lvm2 stop' followed by
'/etc/init.d/lvm2 start'.
Celejar
--
mailmin.sourceforge.net - remote access via secure (OpenPGP) email
ssuds.sourceforge.net - A Simple Sudoku Solver and Generator
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
