SE Linux in FC11 messed up boot for other OSs
 

I was trying to install Omega onto an extra partition. That went ok (Omega looks fantastic-I like how I could play mp3 streams without adding mplayer or the codecs), but I was just evaluating it. I also have FC11, FC10 and WinXP (Home) on the same drive. When I booted into FC11, SE Linux ran some check on my entire drive that took 5 minutes. Now Omega and FC10 won't boot. I got this output on booting from FC10:

Unable to accedss device (UUID-.....)
An error occured during the file system check
Dropping you to a shell:the system will reboot
When you leave the shell.
Warning-SELinux is active
Disabling security enforcement for system recovery
Run 'setenforce 1' to reenable.

Give root password for maintenance.

*****************************************************************************

I gave my password and setenforce 1 and got no error. Then I pressed [CTRL}[ALT][Delete] to reboot to the same thing.

How do I fix my FC10 and Omega installs?

You're being dropped to a root shell on bootup because of disk or filesystem problems. As far as I know SELinux has no concept of devide UUIDs so it never could have caused them to change. Can you boot Fedora 10 from the installer CDROM/DVD you installed it with? Same for F11/Omega? If you can boot (or otherwise access) F10/F11, what does your /boot/grub/grub.conf look like? Do the device UUIDs show when you run 'fdisk -l | awk '/83 L/ {print "tune2fs -l "$1}'|sh|egrep "(name|UUID|state)"'?

ok-I can get both FC10 and Omega to mount in Linux Rescue mode just fine. FC10 gives error messages on boot while Omega does not. FC10 is looking for a UUID which no longer exists (I confirmed with blkid). Can I put the partition label in place of the UUID it is looking for?

If you know it's the right one then by all means replace the UUIDs in /boot/grub/grub.conf and /etc/fstab.

ah-that's it? Thanks!

fixed-the swap UUID in /etc/fstab was messed up in FC10...the Omega installer formatted my FC10 swap partition. I fixed the file to match the output of blkid and then re-installed Omega without a swap partition (I'll add it manually to /etc/fstab).

Good to see you got it working again. Well done!