David G. Miller (aka DaveAtFraud) wrote:
ndbecker2@xxxxxxxxx wrote:
My server has been running FC4 with all updates. After my son just
accidentally unplugged it, it rebooted so that noone can login. If
booted
in text (mode 3), then after the login and password it just returns to
login prompt.
It can't be booted in single user mode. When this is tried, it says
"going
into single user mode", but then starts all the same services as mode 3
(AFAICT) and acts just the same.
I booted into rescue mode, did chroot /mnt/sysimage, and looked
at /var/log/messages and /var/log/secure. Nothing intersting shown.
I can't ssh in. It just logs in and out immediately.
Perhaps related, I had selected to disable selinux IIRC and it said it
would
relabel on next boot. Of course, it crashed before that happened.
First question is, have you tried any other accounts when attempting to
ssh in? This could occur because your login shell has been set to
something like /bin/false or just something bogus.
Try booting in rescue mode (again) and take a look at /etc/passwd and
see what it looks like. It may have gotten zapped, /bin/bash may have
gotten zapped, etc. If /etc/passwd looks good, try changing your login
shell to something like /bin/tcsh or /bin/ksh and then reboot and try
logging in again.
Also, while in rescue mode, you might want to run fsck on which ever
partition holds /. If the functionality isn't there in rescue mode,
download and burn a knoppix live cd, boot from it and see what needs to
be cleaned up.
Also check the root filesystem under rescue mode and make sure it's not
full. The system will exhibit many of the same weirdnesses if / is
full.
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- Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- If Windows isn't a virus, then it sure as hell is a carrier! -
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