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Date: Wed, 8 Jun 2016 11:01:23 +0000
From: cdlscpmv <cdlscpmv@gmail.com>
To: Noah Massey <noah.massey@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can't remove read-only snapshot with immutable flag set
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On 2016/06/08 06:47:52 -0400, Noah Massey wrote:
> On Wednesday, June 8, 2016, cdlscpmv <cdlscpmv@gmail.com> wrote:
> >
> > Hi!
> >
> > It happened that I set the immutable flag (via `chattr +i`) on a subvolume.
> > Then I made a read-only snapshot of that subvolume. Now I can't remove
> > this snapshot.
> >
> >         #> btrfs subvolume delete my_snapshot
> >         Delete subvolume (no-commit): 'my_snapshot'
> >         ERROR: cannot delete 'my_snapshot': Operation not permitted
> >         #> chattr -i my_snapshot
> >         chattr: Read-only file system while setting flags on my_snapshot
> >         #> btrfs --version
> >         btrfs-progs v4.4.1
> >         #> uname -r
> >         4.5.2
> >
> > Is there any other way to do this? Or is it a bug?
> >
> Try
> #> btrfs property set my_snaphot ro false
> #> chattr -i my_snapshot
> #> btrfs sub del my_snapshot

I've already tried that. It worked. Nevertheless, thanks for the reply!