[Debian-on-mobile-maintainers] Bug#1014393: osk-sdl: unistalling osk-sdl leaves crypttab dirty causing failure in asking for the password

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Hi,

Thanks for the bug report.

> After removing osk-sdl, the crypttab file still contains the option keyscript=..../osk-sdl-keyscript.
> That is an error that prevents the booting process to ask for the decrypting password.
> Only after removing that option, I'm asked again for the password (which I can enter using a physical keyboard).


I'm not sure this one is osk-sdl's responsibility. Installing osk-sdl 
adds that keyscript to disk, but does not modify the crypttab. As far as 
I know, this type of configuration is done by the installer for both 
Debian and Mobian 
(https://gitlab.com/mobian1/calamares-settings-mobian/-/blob/mobian-installer/scripts/calamares-install-bootloader 
for example in Mobian) or the user.


I'm not sure I'd want to write a regex that modifies the crypttab 
successfully on all systems, especially when osk-sdl doesn't "own" that 
file. I'd appreciate some advice if there is a proper way to do this 
kind of thing.