mount: /dev/nbd0: can't read superblock

[raise]

Hi!

When trying to mount, I get the message above!

I found someone else having the same problem, but didn't find a
solution though!

Kernel: 2.6.20-16-generic, Ubuntu

modprobe, attach and mke2fs worked fine!

dmesg:

[10924.804704] end_request: I/O error, dev nbd0, sector 64
[10924.804709] isofs_fill_super: bread failed, dev=nbd0,
iso_blknum=16, block=32
[10924.804847] nbd0: Attempted send on closed socket
[10924.804850] end_request: I/O error, dev nbd0, sector 0
[10924.804988] nbd0: Attempted send on closed socket
[10924.804991] end_request: I/O error, dev nbd0, sector 2
[10924.804994] EXT2-fs: unable to read superblock
[10924.805129] nbd0: Attempted send on closed socket
[10924.805132] end_request: I/O error, dev nbd0, sector 0
[10924.805136] FAT: unable to read boot sector

Thanks for your help!

Rainer