problem while mounting an LVM

[Jordon Bedwell]

On Mon, 2010-10-04 at 14:13 +0530, Tapas Mishra wrote:
> mount /dev/nintendo/backupos /mnt/backup/
> mount: /dev/mapper/nintendo-backupos already mounted or /mnt/backup/
> umount: /mnt/backup/: not mounted

What is '/dev/nintendo'? Did you run the 'mount' command as is to see
what it lists so you can see if it's already mounted for real and then,
if it is, unmount it so you can remount it at the mount point you
choose?  Just typing 'sudo mount' will list everything that's mounted.