Comment # 22 on bug 1055641 from Franck Bui

(In reply to Neil Rickert from comment #21)
> Hmm, here's another point I should mention.  I also have Tumbleweed on a
> spare partition on a laptop.  In that case, the root file system is
> "/dev/sda8" and is not encrypted at all.  But I do still mount "home" from
> the encrypted LVM at "/xhome" and I still use swap from the encrypted LVM. 
> On that system, I still get the "Command failed" messages on shutdown.  And
> I still see the "failed to unmount /xhome" (before the "Command failed").

In this case could you try to follow the procedure in comment #14 to see if you
can get more destails with dmesg ?

Thanks.