root@frold-laptop:/home/frold# mke2fs /dev/nbd0
mke2fs 1.40.2 (12-Jul-2007)
Warning: could not erase sector 2: Attempt to write block from filesystem resulted in short write
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
268435456 inodes, 536870656 blocks
26843532 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
16384 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 
        102400000, 214990848, 512000000

Warning: could not read block 0: Attempt to read block from filesystem resulted in short read
Warning: could not erase sector 0: Attempt to write block from filesystem resulted in short write
Writing inode tables:   261/16384