linusfr@ubuntu:~$ sudo -i
[sudo] password for linusfr:
root@ubuntu:~# ls /dev/sdb*
ls: cannot access /dev/sdb*: No such file or directory
root@ubuntu:~# ls /dev/sdb
ls: cannot access /dev/sdb: No such file or directory
root@ubuntu:~# ls /dev/sdb
/dev/sdb
root@ubuntu:~# dd if=/home/linusfr/Desktop/aboot.img of=/dev/sdb5
2048+0 records in
2048+0 records out
1048576 bytes (1.0 MB) copied, 1.65609 s, 633 kB/s
root@ubuntu:~# dd if=/home/linusfr/Desktop/laf.img of=/dev/sdb24
dd: writing to ‘/dev/sdb24’: Input/output error
6657+0 records in
6656+0 records out
3407872 bytes (3.4 MB) copied, 5.14067 s, 663 kB/s
root@ubuntu:~#