Re: The future of legacy BIOS support in Fedora.

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On Tue, 2020-06-30 at 19:15 +0200, Gerd Hoffmann wrote:
>   Hi,
> 
> > > So I can't say I'm thrilled about a future that depends on EFI for
> > > virt, but I'm resigned to the fact this is the direction the world
> > > is taking. So we're not likely to have any choice and will have to
> > > work to mitigate any downsides it brings.
> > 
> > Right.
> > 
> > Preferably the installer should detect and setup the system either with
> > sd-boot ( if setting equals UEFI ) or grub ( if setting not equals UEFI )
> 
> Another problem is that grub2 covers more architectures than sd-boot.
> What is the plan for armhfp, ppc64, s390x?

This part wouldn't really be a problem in the scheme Johann suggests
above, because 'sdboot' would just be another bootloader class in
anaconda in this case, along the several we have already.

> IMHO a better preparation for deprecating BIOS would be to make new
> installs bootable with both BIOS and UEFI.  Which isn't hard at least
> for the "[x] use all space" case where Fedora can partition the disk as
> it pleases:  Use gpt.  Create a bios boot partition, install grun-pc
> there.  Create a ESP partition, install grub-efi there.  Create a
> partition for the /boot filesystem.  Have both grubs pick up BLS config
> from /boot/loader.

That would have to be implemented as another class too, probably. :)

https://github.com/rhinstaller/anaconda/tree/master/pyanaconda/modules/storage/bootloader
is where all this is implemented at present (mostly, the classes there
do pull in various bits of config and info from other places). There's
already quite a mess there, anything we add without taking a way any
existing capabilities will make it a slightly bigger mess...
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net
http://www.happyassassin.net
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