Re: su doesn't work; root cannot log in! Arrgggg
Alan Davis wrote:
My machine has been up for a few days, and now I cannot take it down, since only the sessions that are now open to root will work. I am running "sid" the unstable, and recently did a major upgrade.
In an xterm, the following is received:
su: Module is unknown
What the heck does that mean?
Also, back on a virtual terminal/console. Root cannot log in.
I reinstalled the login package with no effect.
Sid had a broken PAM module for a while; it's now been fixed and
uploaded to the mirrors, so a normal apt update/upgrade should fix it.
To get into root, you'll have to reboot your computer (probably
Ctrl-Aflt-F1 to get to the first virtual terminal, followed by a
Ctrl-Alt-Delete to force a reboot should do it) and boot into single
user mode. You can do this by typing "linux s" at the "boot:" prompt
(assuming your normal kernel image is named "linux").