Bug#926699: libc6-{i386,x32}: installing, removing, reinstalling in a --merged-usr system results in unmerged /lib{32,x32}
Package: libc6-x32,libc6-i386
Version: 2.28-8
Severity: serious
User: debian-qa@lists.debian.org
Usertags: piuparts
Hi,
during a test with piuparts in a --merged-usr environment I noticed that
installing, removing, and installing again a package shipping /lib32,
/libx32 will actually unmerge that directory.
The package will take ownership of the preexisting symlinks
/lib{32,x32} -> /usr/lib{32,x32} that were created by debootstrap,
remove them and create plain /usr/lib{32,x32} directories in the next
installation.
(/lib64 should be mostly safe due to /lib64/ld-linux-x86-64.so.2, but
perhaps on !x86 architectures)
The preinst scripts could check whether the package is being installed
in a --merged-usr environment and create (dangling) symlinks if
/usr/lib{32,x32} is missing. And postrm remove could recreate them if
they went missing.
Andreas
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