Comment 4 for bug 1906245

Could you report me a "ls -laF /var/run/qemu/" what else might be the issue there?
I mean you even removed it so ... ?!

The failing script should be
 /var/lib/dpkg/info/qemu-system-gui\:amd64.prerm
Could you replace the "set -e" with "set -ex" there please and report back all the output your upgrade generates?

And finally to keep output down a bit, don't do "sudo apt-get dist-upgrade -y" but maybe "sudo apt install qemu-system-gui -y"

Eager to hear back to see what other issue is hidden in there.

P.S. And thanks for testing the current -dev release even if this time this bite you (and probably everyone else).