Cryptsetup doesn’t use Inter

[hanaral]

Problem

The drive encryption unlock screen uses Ubuntu’s font rather than Inter

[cassidyjames]

Photos for context. Similarly, the check disk screen when booting the installer also uses Ubuntu instead of Inter.

[meisenzahl]

I'm sorry I mixed up the issues. Sorry for that.

plymouth will fallback to "Sans 12" if no font description is provided.

But "Sans" should be resolved to "Arimo":

$ fc-match sans
Arimo-Regular.ttf: "Arimo" "Regular"

So I'm not quite sure what's happening here...

Originally posted by @meisenzahl in elementary/plymouth-theme#13 (comment)

@meisenzahl is it a matter of the font not being available from the OS? Do we need to do something special with the font to make it available?

Originally posted by @cassidyjames in elementary/plymouth-theme#13 (comment)

[meisenzahl]

@cassidyjames if I understand it correctly, plymouth is "compiled" into our initramfs. It's just a guess, but maybe in both cases we use only a minimal initramfs where Inter is not available.

@davidmhewitt could that, be the problem?

[davidmhewitt]

@meisenzahl Yes, correct, when the initramfs is updated, a series of "hook" scripts are ran to copy in the necessary files for the initramfs to run.

It's often better to view the source of a package from the Ubuntu repositories as Canonical often patch stuff. I've found this which looks like the culprit, and we're already patching plymouth, so probably not too much of a big deal to swap out the fonts here:

https://github.com/elementary/os-patches/blob/plymouth-focal-patched/debian/local/plymouth.hook#L116-L163

You could test locally by modifying /usr/share/initramfs-tools/hooks/plymouth.

[meisenzahl]

@davidmhewitt thanks for looking into this!

[cassidyjames]

Fixed by #164