[systemd-devel] Make systemd-localed modify the kernel commandline for the initrd keymap?

[Alberto Ruiz]

Hello Hans,

Thanks for starting this discussion.

Looking at this from a Fedora/Dracut POV, I think we should look at this as
the start of implementing a configuration-only initramfs, (something
Matthew Garret has been advocating for a while) rather than making this a
vconsole.conf/plymouth specific solution.

On Thu, Sep 26, 2019 at 12:43 PM Hans de Goede <hdegoede at redhat.com> wrote:

> Hi,
>
> On 26-09-2019 11:53, Michael Chapman wrote:
> > On Thu, 26 Sep 2019, Hans de Goede wrote:
> >> Hi,
> >>
> >> On 26-09-2019 11:10, Michael Chapman wrote:
> >>> On Thu, 26 Sep 2019, Hans de Goede wrote:
> >>> [...]
> >>>> I believe that the best alternative is to have localed append / update
> >>>> a rd.vconsole.keymap=foo argument to the kernel commandline, to
> override
> >>>> the vconsole.conf KEYMAP setting, but only in the initrd (so that
> later
> >>>> runtime changes when booted still work).
> >>>>
> >>>> The way I see this working is that localed does a read-modify-write of
> >>>> all the BLS .conf files under /boot/loader/entries and updates their
> >>>> "options" line to have rd.vconsole.keymap=foo appended or updated if
> >>>> already present.Hi,
> >>>
> >>> To be honest, I really do think having the initrd rebuilt completely
> is a
> >>> better approach... but I do not think localed should be directly
> >>> responsible for that.
> >>
> >> As I already mentioned there are 2 issues with rebuilding the initrd:
> >>
> >> 1) It might break booting the system and, assuming we rebuild the initrd
> >> for all installed kernels on a locale change, then their will not be
> >> an older one to fallback to as there normally is, which is BAD.
> >>
> >> 2) We are moving (and in case of rpmostree based distros already
> shipping)
> >> to pre-generated (on the distros buildsys) initrds, which likely will
> >> also be signed.
> >>
> >> How do you propose to solve these 2 issues?
> >
> > Hmm, these are good points. I do like the idea of using a
> > locally-generated overlay initrd though.
>
> Ok, looking at:
> https://github.com/fedora-silverblue/issue-tracker/issues/3
>
> It seems that this might be the preference of the silverblue
> developers too and Javier also seems to favor that, so I guess
> the first thing to do is to give that approach a try.
>
> I've added a comment to:
> https://github.com/fedora-silverblue/issue-tracker/issues/3
> asking the silverblue devs to confirm that the overlay initramfs
> is still their preferred approach, once that is confirmed I will
> give this a try by manually creating on overlay initramfs and then
> we will see from there.
>
> Regards,
>
> Hans
>
>

-- 
Alberto Ruiz
Engineering Manager - Desktop Hardware Enablement
Red Hat
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