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I have downloaded RHEL 6 beta from www.redhat.com site and installed it on my PC successfully. When I want to login with root in GNOME/KDE, the system gives me a error message that AUTHENTICATION FAILED and I'm unable to login while I can login with root from terminal/text mode. But I can login with other user or local user successfully. Please help me and solve my this problem.
This question is marked "community wiki".
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First off: The usual lecture about not using root for routine tasks, or use sudo if you need to. Now your actual problem. It sounds like your login manager is not letting you login as root, which means either gdm, or kdm. Their was a change made in fedora that fits this description. I know they disabled root logins via gdm and pam. For Gnome: Look at /etc/pam.d/gdm Look for the line: auth required pam_succeed_if.so user != root quiet If it's there make a copy of the original file, and delete the line. If your using kde, youll need to look at your kdmrc file, and change AllowRootLogin to true
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This answer is marked "community wiki".
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Why was this made community wiki, I've been looking and can't really find any criteria for what this defines?
(13 Jul '10, 20:26)
rfelsburg ♦
I've added the answer to this question to the FAQ.
(15 Jul '10, 19:25)
jeremy ♦♦
Thanks Jeremy, I was more interested in why someone else would tag my post as community wiki only a couple of hours after it was made. Thanks
(20 Jul '10, 18:08)
rfelsburg ♦
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rfelsburg is right - your permission comes from gdm. Changing that gives you a root GUI. HOWEVER... Just in case you're a newbie... Most distros DO NOT ALLOW one to login as root, only to su to root after logging in. Blocking root login is a common security practice (Fedora does it, for instance.) Allowing root login is a big security hole - anyone can come in over the net and bang away at your login screen. If they can login as root, you've just handed them the keys to your castle. By making it a two-step process you've at least slowed them down and left more tracks in your system logs. see: http://www.cyberciti.biz/tips/linux-security.html Look at item #7 or http://www.howtogeek.com/howto/linux/security-tip-disable-root-ssh-login-on-linux/ Good Luck.
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This answer is marked "community wiki".
Keep in mind the differences between ssh and a gui login to gnome, or kde. This is an important differentiation, disabling root logins to ssh is indeed common practice. However not allowing root logins to gnome/kde is a fairly new practice. The OP is talking about a login to gnome/kde, not ssh.
(20 Jul '10, 18:09)
rfelsburg ♦
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