From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b3) Gecko/20050827 Fedora/1.1-0.2.8.deerpark.alpha2 Firefox/1.0+ Description of problem: It is currently not possible to mount ext3 filesystems created be RHEL-4 on RHEL-3 installations due to 'unsupported feature resize_inode'. But our current e2fsprogs don't allow removal of that feature with tune2fs. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. mke2fs on RHEL4 2. try to mount the newly created filesystem on RHEL-3 3. try to get rid of resize_inode with tune2fs -O^resize_inode Actual Results: removal of resize_inode feature impossible Additional info: the only solution at the moment is to reformat the filesystem
Works for me. I just made a filesystem with e2fsprogs from RHEL-4 U2, and mounted on RHEL-3 on a 2.4.21-32.EL kernel. And RHEL-3 can see the resize_inode flag set: # tune2fs -l /dev/hdb tune2fs 1.32 (09-Nov-2002) ... Filesystem revision #: 1 (dynamic) Filesystem features: has_journal resize_inode filetype sparse_super ... As a tune2fs workaround for now, I think "debugfs" (performed from the RHEL-4 box) should work: $ debugfs -w /dev/$FOO debugfs: feature -resize_inode ^D then e2fsck -fy /dev/$FOO to clean up the metadata. use the command "feature -resize_inode". But that still doesn't explain why your fs did not mount.
Created attachment 119582 [details] Patch for tune2fs Here is a patch for tune2fs to enable creation and removal of the resize_inode feature. Is is essential to check the filesystem with e2fsck afterwards, because the 'real' changes to the filesystem are not done by tune2fs. The patch is in the actual FC 3, 4 and devel trees.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2006-0060.html
For posterity: e2fsprogs-1.40.7 has integrated this change.