This commit adds support for LUKS2 behind a new `partition.conf` key:
`luksGeneration`.
A bit of context, LUKS2 is the default encryption operating mode since
cryptsetup >= 2.1.0 (See [Arch
wiki](https://wiki.archlinux.org/title/dm-crypt/Device_encryption#Encryption_options_with_dm-crypt).
It is considered more secured and allows additional extensions. It also
comes with Argon2id as the default Password Based Key Derivation
Function (`--pbkdf` option). So it's important to provide this as an
option for Calamares in order to make Linux installs more secure, for
those who wish to encrypt their system.
This commit was tested on a custom Manjaro installer with:
- grub bootloader with the [argon patches](https://aur.archlinux.org/packages/grub-improved-luks2-git).
- [rEFInd](https://wiki.archlinux.org/title/REFInd) bootloader with
unencrypted `/boot` partition because rEFInd [doesn't support booting
from an encrypted volume](https://sourceforge.net/p/refind/discussion/general/thread/400418ac/)
**Important consideration for distribution maintainers**:
- You need to have compile flag `WITH_KPMCORE4API` on
- If you are shipping with grub by default please note that you need to
ship it with the Argon patches. Example on Arch Linux: [grub-improved-luks2-git](https://aur.archlinux.org/packages/grub-improved-luks2-git)
- If `luksGeneration` is not found in partition.conf, it will default to
luks1
- Please test this on your own distribution as this was only tested on
Manjaro installer (see above).
There is a mismatch between how the configuration interprets
*initialSwapChoice* when it is not a valid choice, and how
the UI interprets it. If you e.g. do not have a *userSwapChoices*
setting at all, whatever *initialSwapChoice* is set is interpreted
by the UI as "suspend".
Avoid that by putting the choice in the configuration and
warning the user (which ought to be a warning to the distro).
FIXES#1881
- remove from GS
- remove duplication across Config and ChoicePage
- improve translations (presumably "msdos or gpt" is the most
complicated it will get)
FIXES#1735
The `partition.conf` file contains an EFI-size. The default is 300MiB,
but distributions might like to use a bigger (or smaller) value.
Apply the configuration consistently everywhere where we need
"the size of the EFI partition". Extend the internal method
to look at the configured size.
Modules nearly always have a Config and either a Job or ViewStep
as their "top level" components. Everything else is implementation-
detail. The *partition* module was unusual in that those two
"top level" components were tucked away in subdirectories.
Shuffle them to the top: this makes it more clear that these
two files are there to coordinate the module.
