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I was running a new script and encountered the following error:

Your filesystem or build does not support posix ACLs

So I thought no problem, just add acl,user_xattr to my fstab. It now looks like the following:

UUID=01f6d86f-7840-49af-a4e9-191d6e2aeddc / ext4 relatime,acl,user_xattr,errors=remount-ro 0 1

Did a restart and did a mount to check if everything was ok but it wasn't instead it showed the following:

/dev/disk/by-uuid/01f6d86f-7840-49af-a4e9-191d6e2aeddc on / type ext4 (rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered)

So no acl. Did it manually with

mount / -o remount,acl

But that didnt help. So I'm stuck at the moment. I'm running Debian Wheezy RC1 with an ext4 fs. libacl and libacl-dev are installed.

  • Are you using a custom kernel without ACL support? – Artefacto May 13 '14 at 12:12
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ext4 has the acl and user_xattrs options enabled by default¹. You would have to use noacl or nouser_xattr to not use them.

http://patchwork.ozlabs.org/patch/102405/

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On my Fedora 18 system the filesystems show as:

/dev/mapper/vg_machine-LogVol04 on /home type ext4 (rw,relatime,seclabel,data=ordered)

(no acl mentioned) but ACLs do work. I do getfacl xxx and setfacl -m ... xxx without trouble.

What are the exact commands in the script that fail?

Perhaps you should take the issue up with Debian's bugzilla...

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