I hosed my main desktop pretty badly a couple days ago, have reconciled
myself to bad news and would appreciate some advice. (CentOS 5.3 fully
updated but now backed down from kernel 2.6.18-128.7.1.el5 to
2.6.18-128.4.1.el5 just to try that.)
The whole debacle began when I was investigating my formerly-weekly
backup script to run to completion. The backup is kept on an external
USB-connected drive that is mounted and unmounted by the backup script.
I have manually mounted it to retrieve a file but it has been months
since I did that.
I deleted one copy of the backup, as I've done in the past and made a
new crontab entry to try the backup again 2 or 3 minutes later. It was
still running several hours later, which couldn't possibly be right.
Next, I tried clearing the backup on the backup drive and manually
copying directories to it. That didn't work too well, either. At some
point, I tried to send an email using SeaMonkey and couldn't, because it
was unable "to write a temporary copy". I quickly found that that
wasn't all it couldn't write, too.
I tried restarting KDE, which got nowhere. Almost everything worked
O.K. from the command line, the most obvious exception being that I was
unable to read any man pages as a non-privileged user until after I had
accessed that man page as root. I did an rpm -Va with output
redirected to a USB memory dongle. There is stuff missing and mangled
but nothing that raised my suspicion.
Finally, here is my selinux configuration.
[rj@mavis ~]$ ls -l /etc/selinux/config
-rw-r--r-- 1 root root 511 Dec 5 2007 /etc/selinux/config
[rj@mavis ~]$ cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - SELinux is fully disabled.
SELINUX=disabled
# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted
# SETLOCALDEFS= Check local definition changes
SETLOCALDEFS=0
[rj@mavis ~]$
Does anyone have any ideas how I might attack this thing? An epiphany
has not been forthcoming. :-(
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