Can't create XFS on a lv (lvm2)

amy

Code:
sudo mkfs.xfs -f /dev/foo/foo
dm_task_set_name: Device /dev/mapper/foo-foo not found
Command failed

Code:
sudo lvdisplay --- Logical volume --- LV Name                /dev/foo/foo VG Name                home LV UUID                3xVX00-LGQi-YSOD-OoG8-OnGh-mSLI-1rRSUE LV Write Access        read/write LV Status              available # open                 1 LV Size                92.00 GB Current LE             23552 Segments               1 Allocation             inherit Read ahead sectors     0 Block device           254:0

Code:
sudo ls -l /dev/foo/foo
lrwxrwxrwx 1 root root 21 2007-06-17 22:53 /dev/foo/foo -gt; /dev/mapper/foo-foo


Does it make any different if you run mkfs.xfs on /dev/mapper/foo-foo instead? Bearing in mind that /dev/foo/foo is just a symbolic link to that.