Unable to authenticate user with Fedora 10 and I know the password is correct
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Hello everyone. I have a bit of a problem here. My machine is running Fedora 10 (GNOME).
Here's what happened...
I was browsing the internet on facebook and doing some photo modification and whatnot (This likely has nothing to do with my problem). I was then about to start Apache because I am working on my webpage/server. I type "su" and enter the root password. I am 100% sure the password was good, but it told me it was incorrect. Baffled, I googled my issue, and found a quick fix (or so I thought).
The fix was to start Fedora in Runlevel #1 and change root password there. This seemingly worked fine. When this runlevel started, I was logged in as root (by default). Typed in "passwd" and entered a new password (lets say it was "asdf1234").
I then rebooted and started back up in runlevel 5. When I tried to log back in as my user, I am told "unable to authenticate user". Thinking I inadvertently changed MY user's password, I tried "asdf1234", but to no avail.
I also tried to make a new user and that did not work either.
Am I missing something here? My machine was working fine, then suddently just locked me out of everything. I would like to avoid having to re-install Fedora 10 yet another time. ANY help one can provide would be greatly appreciated.
Try a reboot first. If you change a password you may need to log out. The root user can't log out of everything, so maybe a reboot will fix the situation. You can change the password of a regular user as root. Since root logins work now, you can log into a virtual terminal and use passwd to change a regular users password.
A keyboard encoding change can also cause a problem if you did that. If you use kdm, there may be a drop down picture to select the flag of your country. An change in character encoding can result in different keycodes or character codes sent to login.
One thing that can cause logging in to fail suddenly is if a partition has run out of disk space. For example, check for a runaway log file in /var/log, or maybe a multi-gigabyte ~/.xsession-errors file. The symptoms here are if you log in but are returned to kdm/gdm after a few seconds.