On Wed, Dec 24, 2008 at 2:09 PM,  <greg_sw...@aotx.uscourts.gov> wrote:
>> Are the filesystems incompatible?
> they are not incompatible, verified by one of RedHat's ext engineers

Maybe I asked the wrong question.  If the e2fsck program that comes
with rhel3 is is not [fully] compatible with the rhel5 filesystem,
that is a problem though, even though the filesystem itself can be
mounted and used.   Again, hopefully a reboot won't be needed anytime
soon!

> While technically it should be fine, you can remove the ext_attr in this
> manner:

I agree that your tests suggest that ext_attr isn't the problem.
Maybe the problem is among these other 'filesystem features' that the
rhel5-created filesystem has, that aren't among features listed for
the rhel3-created filesystems:  resize_inode, dir_index, large_file;
plus these default mount options (also as indicated by dumpe2fs):
user_xattr, acl.  I'm not sure which of these prevents rhel3 from
being able to fsck the device, and currently it's in use, so I can't
experiment with changing anything.

Thank you Greg and Barry for the suggestions.

-Ed

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