sudo sh mkdir.txt /dev/sdb1
1024+0 records in
1024+0 records out
1048576 bytes (1.0 MB) copied, 0.00411151 s, 255 MB/s
Disk /dev/sdb1 doesn't contain a valid partition table
DISK SIZE - 419457024 bytes
CYLINDERS - 50
Checking that no-one is using this disk right now ...
BLKRRPART: Invalid argument
OK
Warning: start=63 - this looks like a partition rather than
the entire disk. Using fdisk on it is probably meaningless.
[Use the --force option if you really want this]
Cant find boot partition in /dev
Cant find rootfs partition in /dev