I'm following this guide to install Gentoo, in my case in a virtual machine.
During partitioning with
parted there is 1 MiB missing at the beginning of all space allocation and 1 MiB missing at the end. There is an example of this in the guide, when
(parted) print is invoked.
In my case, I allocated a disk with exactly 200 GiB for this VM, which translates into 204800 MiB. I was expecting the first partition to begin at 0 MiB and the last partition to end at 204800 MiB. But the space allocated begins at 1 MiB and ends at 204799 MiB as the following image shows:
The last partition was allocated with
(parted) mkpart primary 5121 -1.
Why is space missing: 1 MiB before the first partition and 1 MiB after the last partition?