Public bug reported:
Binary package hint: ext2resize
ext2online & ext2prepare both detected my RAID stride incorrectly. I
have an ext3 filesystem on an LVM device created on top of an mdadm
RAID5. The ext3 filesystem was created with a stride of 16, as the RAID
blocksize (and PV block size) is 64k.
After adding a new drive to the RAID set, I grew the logical volume,
then attempted to expand the filesystem on it.
Both ext2online & ext2prepare gave the following error:
This is odd, the RAID stride is not constant at -1009!
This is odd, the RAID stride is negative (-1009)!
Using a RAID stride value of 0
Clearly a stride of -1009 is unlikely.
I ended up taking the filesystem offline and using ext2resize to grow
it, as ext2resize accepts a parameter to set the stride (-S, though it's
not documented in the man page or usage message, it showed up in a
changelog I found with google)
** Affects: ext2resize (Ubuntu)
Importance: Undecided
Status: New
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ext2resize tools incorrectly detect RAID stride
https://bugs.launchpad.net/bugs/256669
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