Shouldn't that fail in such a broken environment?
# apt-get install --reinstall usr-is-merged
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 1 not upgraded.
Need to get 0 B/4732 B of archives.
After this operation, 0 B of additional disk space will be used.
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend
cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78, <> line
1.)
debconf: falling back to frontend: Readline
(Reading database ... 15056 files and directories currently installed.)
Preparing to unpack .../usr-is-merged_30+nmu1_all.deb ...
Unpacking usr-is-merged (30+nmu1) over (30+nmu1) ...
Setting up usr-is-merged (30+nmu1) ...
# ls -lad /lib{,32,64,x32}
lrwxrwxrwx 1 root root 7 Sep 19 00:35 /lib -> usr/lib
drwxr-xr-x 2 root root 440 Sep 19 08:59 /lib32
lrwxrwxrwx 1 root root 9 Sep 19 00:35 /lib64 -> usr/lib64
lrwxrwxrwx 1 root root 10 Sep 19 00:35 /libx32 -> usr/libx32
Andreas
