Well, the upgrade was easy enough, some weird
LDAP database corruption
that was fixed easily by running
There is something fishy going on in
/etc/nsswitch and using ‘files’
compat. Got lots of segfaults:
[90474.491264] zsh: segfault at bfcf07ef ip 001be398 sp bfce4efc error 6 in libnss_files-2.12.1.so[1bc000+a000]
Not enough for a bug report (yet), I still need to examine this further.