I am an Ubuntu yearling and have had no trouble with my installation since I installed it. I decided to try Mandriva 2008, so overwrote my Vista installation (I have 2 hard drives in my machine, and felt I did not have to partition). I clicked on the option to overwrite all the partitions on the Vista disk and installed Mandriva on it. Now, when I open the GRUB loader, one of two things happens:
If I mark the ex-Vista now-Mandriva disk as the primary boot disk, it gives me two options: Mandriva and Longhorn. Mandriva works, but the Longhorn cannot be found.
If I use the Ubuntu hard drive as the primary boot disk, it gives me all the old options (including Ubuntu, Ubuntu Safe mode (x3) and Longhorn), but cannot find ANY of the files!!
Please help. I've been using Ubuntu for about a year and really like it, so I don't want to have to reinstall and lose all my hard-earned settings. If I reinstall, I don't know if the GRUB loader will see the Mandriva installation (which I also like) in any case.
Is there some way to 'update' the GRUB loader to see all my installations and delete the now-defunct Vista installation? I think my trouble has been caused by my having two installations of GRUB on one machine. Thanks in advance.