I installed Fedora 7 (test 4) a few days ago and now want to install Mandriva 2007 Spring. The mandriva live CD runs fine and the installation 'appeared' to go succesfully. However, when I rebooted the Fedora grub screen is still there. I installed the Mandriva grub option (twice) but Fedora refuses to go away.

Are you saying Mandriva installs, but the Fedora splashscreen for grub remains? Or are you saying the entire Fedora install is still there?

If the latter, all I can say is you must be missing something during the installation. Try again, and pay very close attention during the part where it asks you where you want Mandriva installed. Ensure that it is using the entire disk (or at least the entire disk that Fedora is using if you have other OSs in there).

If this still does not work then it is perhaps time to send a bug in to the Mandriva folks.

If Mandriva is installed, but the Fedora grub screen is still there, you can still use it to boot Mandriva. The only thing 'Fedora' about grub is the artwork...

Do you have more than one hard drive ? Where exactly did you install the mandriva version of grub ? On the MBR or root partition ?

David

Under Mandriva, if you look in /boot, you should find /boot/gfxmenu (a cpio archive). Open it with the Gnome Archive Manager, you will see a list of files in the archive including back.jpg. ALT+Click it, and select View File in the pop up menu.

IF you see the Mandriva image, close everything and open MCC. Make some change in your boot configuration such as changing the name of the Mandriva boot menu item from linux to Mandriva and MCC should install the boot manager again, replacing the RedHat boot menu graphic with Mandriva's.

If you see the RedHat graphic, close everything and remove the grub package, check that all the grub stuff has been removed from /boot, then install grub again. Open MCC as above, and make change the boot configuration to force MCC to reinstall the boot manager.

HTH,

Thanks to all of you for your advice! Just to recap, the problem was that although Mandriva 'seemed' to install properly, part of the Fedora installation was still there. Namely the Fedora grub and part of the installation. When I selected Fedora from the grub menu it tried to install but locked up after about thirty seconds.
I actually solved the problem by running the Mandriva Live CD and using the mount options in the control panel to manually delete the partitions that Fedora had created. (I had to delete one partition then reboot and delete the other) Fedora seemed to have created a 101MB logical volume for /boot (HDA6) which the Mandriva install was ignoring. It was installing on the main Linux partition (HDA7) but because the Fedora grub settings were still there it was trying to boot up from HDA6. I cannot understand why the Mandriva install did not overwrite Grub in the MBR with its own settings?