I just upgraded from 7.10 to 8.04 with the effect that I could not sudo any more (unable to resolve host name)
the problem is that my sysadmin had advised me to remove the line
127.0.1.1 myhostname
from /etc/hosts a couple of days before the upgrade. When I put it back in, sudo worked again.
mmh, a bit tricky that you cannot sudo because your network settings are wrong, and you cannot change your network settings because you cannot sudo. maybe some more thought is required here, it is too easy to make your system unsteerable...
I just upgraded from 7.10 to 8.04 with the effect that I could not sudo any more (unable to resolve host name)
the problem is that my sysadmin had advised me to remove the line
127.0.1.1 myhostname
from /etc/hosts a couple of days before the upgrade. When I put it back in, sudo worked again.
mmh, a bit tricky that you cannot sudo because your network settings are wrong, and you cannot change your network settings because you cannot sudo. maybe some more thought is required here, it is too easy to make your system unsteerable...