Comment 45 for bug 1447038

sudodus (nio-wiklund) wrote :

I did some testing today with Lubuntu Xenial i386 in two real computers, and it seems that live systems booted from cloned drives do not shutdown correctly, but grub-n-iso systems are not affected by this bug.

See this link to the current bug report #1552985
and to my comment, #17

Could it be that this bug is actually the same as that one? An ISO image used by VirtualBox has the same content as a USB drive created by cloning (from the ISO image file).