Bug#1057219: busybox: possible file loss during upgrade arising from /usr-merge

[Helmut Grohne <helmut@subdivi.de>]

Package: busybox
Version: 1:1.36.1-6
Severity: serious
User: helmutg@debian.org
Usertags: dep17p1

Hi Chris and Michael,

I am very sorry to tell you that I found a contrieved /usr-merge problem
with the busybox upload. In essence, Conflicts allow for concurrent
unpacks in weired situations. As a consequence, you may miss the busybox
binary if you upgrade from bookworm to trixie and change from
busybox-static to busybox or vice versa in the process. I do not have a
solution at this time and file this bug as a migration blocker. If you
want to get rid of the rc bug, you may upload a revert. Otherwise,
please wait until we have a better understanding of the problem.

I am filing a detailed report for systemd-sysv with a very similar
issue.

Helmut