Am Freitag, 14. Dezember 2012, 16:10:07 schrieb Uwe Brauer:
1st: can you log in as root or switch to root account using 'su -' ?
no!
that is bad. always set a password for root before messing around :) (sudo passwd root)
2nd: you can always install a new sudoers file from a live CD as long as your file system is not encrypted..
it is not encrypted, but suppose I use a say Kubuntu 10.04 live CD, how do install the new sudoers file?
well, you can download a sample file from the internet or, if you still have a default sudoers file, edit that from the live cd. mount your HD first, of course.
werner