Sometimes I need most of my disk space in the root partition and sometimes I need it in my home partition. So the logical conclusion for me is that I need a combined partition. I don’t make use of any of the benefits that a home partition provides anyway.
But to my surprise the installer doesn’t appear to allow doing that.
I would like:
1 “/swap” partition (32Gib, encrypted)
1 “/boot” partition (1Gib, encrypted if possible?)
1 “/boot/efi” partition (600Mib, encrypted if possible?)
1 “/” partition (the remaining ~450Gib, encrypted, btrfs)
(and the “/” partition should then simply have a /home directory)
The weird thing is that once I remove the /home partition in the installer, there is no option to increase the size of “/” accordingly. Am I doing something wrong?
Another weird thing is that I can enable encryption for /boot and /boot/efi, but it automatically resets itself when I select a different partition. Can these partitions even be encrypted?
The last time I have used that screen, I just clicked Desired Capacity field and type a bigger number than available space (like 999) and it took up all available free space. Can you do that? For encyption, you cannot encrypt the efi partition as far as I know. GRUB supports booting from an encrypted /boot but I have never done that.
Sometimes I need most of my disk space in the root partition and sometimes I need it in my home partition. So the logical conclusion for me is that I need a combined partition.
Good news! With btrfs, the default is to make /home a subvolume, which means it shares the same storage. No more having 25GB free in / and nothing on /home, or vice versa. I think that may actually be what you’re seeing with the size values here.
You can just leave it, with no separate /home volume, but you might want to have it after all, because that lets you do separate snapshots and backups, set parameters differently, and so on.
They’re traditional partitions rather than subvolumes. EFI has to be VFAT by the standard, and swap partitions use their own format. (You can use a file instead of a partition, but that has some drawbacks.) And I don’t remember the details but I think we keep /boot as ext4 because of some grub2/bootloader issues.