Hello list,

I'm trying to mount an ext3 file system as ext2, I thought this could
*always* be done, but I'm finding otherwise.

I write to a disk on a "master" Linux and then want to link it read-only
on "clones". I use a LINK statement in the USER DIRECTory, use "(ro)" in
zipl.conf and "ro" in fstab.

If I mount the read-only disk as ext3 on the clones, it mounts, but there
are errors on the console (I assume) because the file system is trying to
write to the journal. Wehn I changed "ext3" to "ext2" in fstab on the
clones I found that the file system would no longer mount.  On the
interactive mount command I get the error:
  mount: wrong fs type, bad option, bad superblock on /dev/dasdd1,
       or too many mounted file systems

On the console I see the error:
  Jun  6 13:35:11 lat132 kernel: EXT2-fs: dasdd1: couldn't mount because
of unsupp
  orted optional features (4000000).

However, if I shut down the master, the clones can mount as ext2 with no
problem. Here is a summary:
                                   R/W on master  R/O on clones
Mount as ext3                          yes           yes
Mount as ext2 w/master shutdown        N/A           yes
Mount as ext2 w/master running         yes           NO

Is this behavior expected?
Thanks.


"Mike MacIsaac" <[EMAIL PROTECTED]>   (845) 433-7061

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