ubuntu@ubuntu:~$ parted -1
parted: invalid option -- '1'
Usage: parted [-hlmsv] [-a<align>] [DEVICE [COMMAND [PARAMETERS]]...]
ubuntu@ubuntu:~$ parted -l
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0
has been opened read-only.
Error: Can't have a partition outside the disk!