[rhn-users] mount a lvm/ext3 fs?

Ray Stell stellr at cns.vt.edu
Wed Jul 6 11:36:22 UTC 2005


On Wed, Jul 06, 2005 at 07:00:15AM -0400, Lamon, Frank III wrote:
> Maybe try to redo the filesystem again, we always create them like this:
> "mkfs -j /dev/db01_vg/db01_lv"


I've tried lots of different methods, including the one you suggest.  
The fs seems to create, but when I try to mount it, /var/log/messages
says:

Jul  6 07:28:59 pecan kernel: VFS: Can't find ext3 filesystem on dev dm-0.

What is the dm-0?

Below is the command where I made the fs I mount to get the above error:

[root at pecan db01_vg]# mkfs -j /dev/db01_vg/db01_lv
mke2fs 1.35 (28-Feb-2004)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
4587520 inodes, 9175040 blocks
458752 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=12582912
280 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
        4096000, 7962624

Writing inode tables: done                            
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 20 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

[root at pecan db01_vg]# mount /dev/db01_vg/db01_lv /db01
mount: you must specify the filesystem type

[root at pecan db01_vg]# mount -t ext3 /dev/db01_vg/db01_lv /db01
mount: wrong fs type, bad option, bad superblock on /dev/db01_vg/db01_lv,
       or too many mounted file systems

============================================================
Ray Stell  stellr at vt.edu  (540) 231-4109  Tempus fugit  28^D




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