fixfiles / restorecon with selinux disabled

[Berend De Schouwer]

Hi,

I'm struggling to relabel a root filesystem correctly for SELinux.

I've got a system where I've had to copy (rsync) / to a new harddrive. 
I then changed the UUIDs in /etc/fstab, and the system is booting from
the new harddrive.  So the labels went missing.

The system does not allow logins if SELinux is enabled, because some
files (including systemd-user-session) are labelled incorrectly.

I've tried various ways to get it back, but fixfiles relabel,
restorecon -vR / require SELinux enabled, and if I enable it I can't
log in to run restorecon.

I've tried /.autorelabel but it appears to be ignored.  I've checked
some files with 'ls -laZ'.

Any ideas?
Berend

[Dirk Gottschalk]

Hi.
Am Samstag, den 17.03.2018, 17:46 +0200 schrieb Berend De Schouwer:
> Hi,
>
> I'm struggling to relabel a root filesystem correctly for SELinux.
>
> I've got a system where I've had to copy (rsync) / to a new
> harddrive. 
> I then changed the UUIDs in /etc/fstab, and the system is booting
> from
> the new harddrive.  So the labels went missing.
>
> The system does not allow logins if SELinux is enabled, because some
> files (including systemd-user-session) are labelled incorrectly.
>
> I've tried various ways to get it back, but fixfiles relabel,
> restorecon -vR / require SELinux enabled, and if I enable it I can't
> log in to run restorecon.
>
> I've tried /.autorelabel but it appears to be ignored.  I've checked
> some files with 'ls -laZ'.
>
> Any ideas?
> Berend

You could enable SELinux in permissive mode, then relabel the FS and
reboot in enforcing mode. This SHOULD work.

Regards,
Dirk

[Berend De Schouwer]

On Sat, 2018-03-17 at 16:51 +0100, Dirk Gottschalk wrote:
> Hi.
> Am Samstag, den 17.03.2018, 17:46 +0200 schrieb Berend De Schouwer:
> > Hi,
> >
> > I'm struggling to relabel a root filesystem correctly for SELinux.
> >
> > I've got a system where I've had to copy (rsync) / to a new
> > harddrive. 
> > I then changed the UUIDs in /etc/fstab, and the system is booting
> > from
> > the new harddrive.  So the labels went missing.
> >
> > The system does not allow logins if SELinux is enabled, because
> > some
> > files (including systemd-user-session) are labelled incorrectly.
> >
> > I've tried various ways to get it back, but fixfiles relabel,
> > restorecon -vR / require SELinux enabled, and if I enable it I
> > can't
> > log in to run restorecon.
> >
> > I've tried /.autorelabel but it appears to be ignored.  I've
> > checked
> > some files with 'ls -laZ'.
> >
> > Any ideas?
> > Berend
>
> You could enable SELinux in permissive mode, then relabel the FS and
> reboot in enforcing mode. This SHOULD work.

That did work, thank you.