Hi! I've made a nice little script to partition and encrypt drives. For the partitioning, I'm using parted to write a GPT partition table and to create a partition. This is my partitioning command: I align the beginning of the partition to 1MiB. However, I've noticed that if I use gparted to create a new partition, gparted also leaves 1 MiB at the END, so I have a few questions.

1. As I understand it, when using GPT, partitioning information is stored at the end of the drive as well (a backup?). If so, when I specify the partition to extend to 100% of available space, I ASSUME the partition itself won't overwrite the GPT area at the end. Is this assumption correct?

2. If I use the command below instead, to leave 1MiB at the end as gparted seems to do by default, will that 1 MiB leave 1 MiB to the end of the drive itself, or 1 MiB to the GPT info at the end? I guess I could ask the question in another way; will the command below create a partition in exactly the same way that gparted does? 3. What would be the preferred way? I notice that the partitions on my system drive, which I created with the partitioning tool in the Linux Mint installer, does not leave 1 MiB at the end.

4. Bonus question: Is there a way to make parted output more info when used in my script? Now it's completely silent and I can't find like a "-v" or "--verbose" option in the documentation.

1. As far as I know that is correct. The partitioning tools will not overwrite the secondary GPT header.
2. No, the partitioning tools both parted and gparted understand the secondary GPT header, you do not need to do anything special i.e. using 100% will size the partition up to the secondary GPT header.
3. Is your system drive using MBR or GPT? MBR does not need to reserve space at the end. If using GPT then I would guess the Mint installer might hide that information from the user.
4. I don't use parted all that much but I have not seen anything either.