Grub Reinstall Problem!!!

[Chiheb Djabri]

Hi

I tried to Reinstall Grub...because it lost it after insalling XP but I failed.... the
/boot is already mounted...si all I did is Grub-install /dev/hda7 ( I was not sure wich
partition I use to boot). Is there a command that can list allo partitions in my hard
disc. Do I have to make active the Fedora Partition after installing Grub????