I am multibooting opensuse 11.4, fedora 15 and windows vista. I recently reinstalled windows and now the suse bootlaoder is no more. This situation happened with opensuse 11.2, and I just used the installation DVD and the expert tools option to repair the bootloader. However , the 11.4 DVD does not present the repair installed system option. I know the linux partitions are still there because when I choose the update option during installation it acknowledges the partitions. So any help in repairing the bootloader will be much appreciated, thanks.
Re-Install Grub Quickly with Parted Magic
You must use the PMagic from the guide or a SUSE live CD will do also
I followed the steps from the above link and I now have a boot menu. When I attempt to boot into suse it says superblock could not be read or does not describe a correct ext2 filesystem and some other things about the the possibility that the superblock may be corrupt if the device is valid and really does contain a valid filesystem.
It also says that fsck failed for at least one filesystem (not /), I am lost as to where I should go from here. Thanks
If you have Parted Magic, boot it and run a check on the partitions.
But it sounds not so good to me. Either the HD is failing or your windows install has messed things up.
If at all possible - backup if you need to. Just in case it all heads south.
Maybe this helps(it worked for me): openSUSE: Rescue Mode
The post is in romanian language (sorry no english i write for romanian users only) but the words in bold are commands that you can use; write them down on a piece of paper and try to remember the partition where openSUSE resides. All you need is the openSUSE DVD and at the boot menu choose recovery mode.
Boot from a Fedora live CD (as you mentioned that you also have Fedora and even if you didn’t). It you get a message saying that the system can not be installed because the hard disk contains bad sectors, replacing the hard disk is the only thing to do.
Thanks for all the responses, I decided to just re-install everything.
Well… in the future you will still have to learn how to re-install the bootloader so reinstalling the OS saved your penguin hide for the moment 
Thanks for all the responses, I decided to just re-install everything.
I would like to add that fixing a problem directly is faster and helps you understand just what the issue was. However, there is no disgrace in reinstalling openSUSE when you can’t figure out what is wrong. In the beginning of my Linux days, I had a mission to install openSUSE on an External Hard drive I could boot from without placing anything on my internal hard drive. I can no longer remember the number of times I reinstalled SuSE (this was in version 10.0 days), but it was a lot of times. Even and including blowing away Windows which I had to reinstall from a backup. If at first you do not succeed, try try again. You only lose if you stop trying and learning from your mistakes. I commend you for not giving up and trying again.
Thank You,