whenever I insert my external drive (containing 1 ext3 partition)
it is automatically recognized in /dev
I dont now why, but sometimes it appears as /dev/disk2, /dev/disk2s1, but it can also be /dev/disk3, /dev/disk3s1 or even /dev/disk4, /dev/disk4s1.

Whenever the identifier is not 2 but 3 or above, the mount operation reports:

"Operation not permitted"

bug or feature?

thanks for any help---