The described behavior of the "Replace" option was incorrect, it does not keep the same filesystem type that the partition already had, rather it uses the `defaultFileSystemType` value. See:
https://github.com/calamares/calamares/issues/1970
1- Need to be careful switching dependencies from REQUIRED to OPTIONAL
2- Don't do ECM REQUIRED all over the place
3- Workaround neon CI not having KCrash (which translated to KF5 not
found, which translated to a missing REQUIRED dependency, see 1).
make kpmcorehelper usable for both kf5 & 6, though no section added yet dealing with set to NOT for Qt6
adjust CalamaresConfig to not be hardcoded to kf5
one more var needed in Variant.h, used in PartitionInfo.cpp
adjust QVariant & QtConcurrent use
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).
- Put this in a method of its own even though it's used
only once, so we can put a good name on it.
- If there are no FS choices (e.g. the sample settings file)
then there is no combo-box, and the check was crashing.
FIXES#2029
