Dear Javier, Many thanks for your very helpful answer.
With regards to whether $default_kernelopts is still used, it is definitely still used in CentOS 8 - wider than that I cannot yet report. I will attempt to look for a more appropriate forum for discussion! Mike ---------- Forwarded message ---------- > From: Javier Martinez Canillas <jav...@dowhile0.org> > To: The development of GNU GRUB <grub-devel@gnu.org>, mjsbea...@gmail.com > Cc: > Bcc: > Date: Wed, 18 Aug 2021 09:03:15 +0200 > Subject: Re: blscfg module $early_initrd and $default_kernelopts variables > Hello Mike, > > On Wed, Aug 11, 2021 at 3:17 PM Mike Beaton <mjsbea...@gmail.com> wrote: > > > > I was wondering if anybody could possibly help out and clarify, is there > any official documentation around the existence, and correct use, of the > blscfg $early_initrd and $default_kernelopts variables? > > > > The blscfg module is not in upstream GRUB yet and it's only present in > the downstream package of some distros (e.g: Fedora Linux, Endless > OS). The mailing list is not a proper venue to discuss downstream > specific features and instead should be reported for your distribution > (i.e: Fedora's bugzilla). > > > > https://github.com/rhboot/grub2/blob/fedora-35/grub-core/commands/blscfg.c#L764 > > This variable is not used anymore and is only there for backward > compatibility. Now in Fedora the kernel command line parameter is > stored in the BLS snippets instead. > > > > https://github.com/rhboot/grub2/blob/fedora-35/grub-core/commands/blscfg.c#L788 > > > > The goal of this variable was to support the > GRUB_EARLY_INITRD_LINUX_CUSTOM option in /etc/default/grub, and so the > /etc/grub.d/10_linux script looks at this and sets the early_initrd > variable. So the use should be to set that option and then run > grub2-mkconfig as you would do on a non-BLS setup. > > But I believe that instead the correct way should be for the BLS > snippet created to contain two devicetree options, and drop the > $early_initrd variable as well. > > Best regards, > Javier > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel >
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