Comment 68 for bug 1048059

The ubuntu installer never put the "acl" option into /etc/fstab. On my quantal-installed system I have no such option:

$ grep acl /proc/mounts /etc/fstab
$

I don't see any tune2fs in our installers either. So what I suspect is that mkfs enables the option by default these days, but hasn't in the past?

My /home file system was created in August 2010, and I get

$ sudo dumpe2fs -h /dev/sda5 | grep 'mount options'
Default mount options: (none)

while my root partition (which I recreate with every install) has

Default mount options: user_xattr acl

On both file systems I can use ACLs, so the implicit default if the file system does not specify an explicit one seems to work correctly. Can people who are affected by this please run above command on their root file system? (That's the kind of debugging and comparison I would like to do with SSH access...)

As a last resort I can still make udisks get along without ACL support, but this would be a bad and incomplete workaround for the root problem. There's certainly other software which wants ACLs to work, so I'd like to get this fixed properly rather.