I couldn't get into Postgresql to save my life (though it swears it's running), so I used kuser to change the postgres user's password. Upon exiting, it apparently screwed something up, because my root password is suddenly not working, and the new postgres password doesn't work either.

First of all, what do I do about losing the root password. Secondly, how do I change another user (i.e. the postgres user) password from a terminal. It was while searching Google to find out how that I found out about kuser and screwed everything up.

Help! Thanks in advance.

p.s. I'm not completely inept. I have managed to recompile the kernel with NTFS support and installed nVidia drivers complete with TwinView.

kuser works for me the whole time.

passwd username

Lost root passwd:
boot to cd1
linux=rescue
chroot /dev/hda#
cp /etc/shadow /etc/shadow.bak
vi /etc/shadow
remove root passwd between : and :
reboot

I'm not sure, but I THINK that I read somewhere that passwords are saved in /etc/passwd in redhat 8.0.

Ah I always thougth eveybody was on Slack. Silly me. Cut me some slack, will ya?

boot
type "linux single"
passwd
reboot

Thanks for the help, everyone. I actually got it figured out before I returned here.

I have a Knoppix CD lying around, so I booted into it, mounted my Redhat filesystem as read-write, did a "sudo /mnt/hda3/etc/passwd" and fixed 'em.

Thanks!