The output is actually a question:
I have no idea if it's a GPT partition or not. I typed yes and got:
ubuntu@ubuntu:~$ sudo parted /dev/sda unit s print
Warning: /dev/sda contains GPT signatures, indicating that it has a GPT table.
However, it does not have a valid fake msdos partition table, as it should.
Perhaps it was corrupted -- possibly by a program that doesn't understand GPT
partition tables. Or perhaps you deleted the GPT table, and are now using an
msdos partition table. Is this a GPT partition table?
and there is no output if I type no.
Model: ATA INTEL SSDSC2CW24 (scsi)
Disk /dev/sda: 468862128s
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags