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64-bit inodes and back again

To: xfs@xxxxxxxxxxx
Subject: 64-bit inodes and back again
From: Michael Cronenworth <mike@xxxxxxxxxx>
Date: Tue, 27 Sep 2011 18:28:37 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2
Hello,

I enabled 64-bit inodes on a 2.6.35.14 kernel system. I ran into some software that did not handle this well, so I wanted to go back to 32-bit inodes. When I booted into the system again, any files that were created while in 64-bit inode mode are inaccessable and are shown to me like this:

$ ls -l /var/lib/mock/
ls: cannot access /var/lib/mock/dist-5E-build-373-1401: Invalid argument
??????????? ? ?    ?     ?            ? dist-5E-build-373-1401

I was led[1] to believe that this would not cause problems, but it has.

I have run xfs_repair on the file system but the old files still remain.

Are there any other things I can do to fix this? One thought is to remount with 64-bit inodes and erase or copy the offending files, but is that my only option?

[1] http://xfs.org/index.php/XFS_FAQ#Q:_Can_I_just_try_the_inode64_option_to_see_if_it_helps_me.3F

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