Comment # 33 on bug 1162320 from Oliver Kurz

(In reply to Michael Chang from comment #27)
> (In reply to Fabian Vogt from comment #22)
> > (In reply to Andreas F�rber from comment #19)
> 
> > Maybe the system was installed using Leap 15.0 and then upgraded to 15.1 at
> > some point?
> > 15.0 doesn't have the arm64-efi subvolume at all.
> 
> > It's entirely missing from control.xml on Leap <= 15.0 and for
> > >= 15.1 it's only part of serverro. So there definitely needs to be a control.xml
> > fix anyway. This would also be the root cause, unless the affected system was
> > installed from a known fixed Leap 15.1.
> 
> These information is definitely missing from the bug report. I think Oliver
> would be able to provide ...
> 
> @Oliver:
> 
> Would you please help to clarify that ?

AFAIK, yes, the system was upgraded from Leap 15.0 so any changes in the
installer system would not fix the issue. I guess in general any "changes" to
the installer can also induce a need for corresponding changes for the upgrade
case which can effectively only mean the mentioned %post script additions,
right?

So far the machine is still in the pre-update state with a zypper lock added on
the old package version. I have not yet understood what entry to /etc/fstab I
would need to add or what path explicitly I should pass to `mksubvolume`.