[linux-lvm] Unable to mount snapshot LV when fs=ext3 on Linux kernel 2.4.20

Patrick Caulfield caulfield at sistina.com
Thu Apr 17 07:53:02 UTC 2003

On Thu, Apr 17, 2003 at 02:42:26PM +0200, Michel Seyller wrote:
> Hi,
> Linux Red Hat 9.0 kernel 2.4.20-8
> I have created a ext3 fs on a LVM logical volume : OK.
> create a snapshot on it, trying to mount it :
> [root at linux05 proc]# mount /dev/volume01/snap01 /SNAP
> mount: block device /dev/volume01/snap01 is write-protected, mounting 
> read-only
> mount: wrong fs type, bad option, bad superblock on /dev/volume01/snap01,
>        or too many mounted file systems
> No problem with an ext2 file system.
> Any explanation ? a bug ? a bad patch for VFS locking in the kernel ?

Sounds like the VFS lock patch is not in the RH kernel, or is not patched in



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