On Wed, Jul 27, 2022, at 5:07 PM, Lennart Poettering wrote:
> On Mi, 27.07.22 17:01, Chris Murphy (li...@colorremedies.com) wrote:
> 65;6800;1c

>> If the additional barrier to adoption that Fedora imposes is that
>> every distro needs to also include signed efifs ext4 in order to
>> read $BOOT, I think it's too much.
>
> I do not follow that logic. First of all, if they can sign grub or
> sd-boot they should be able to sign efifs too. Secondly, they could
> just embedd the relevant efifs driver in the sd-boot binary, and sign
> the result (see other mail). Hence, you build two binaries. Make one
> of them. Sign one binary.

Sure. But all the distros need to support and build efifs drivers in order to 
support at least common $BOOT file systems across all of Linux, if they're 
really truly committed to BLS, if not arbitrary file systems.

There's at least ext4, XFS, Btrfs widely used as $BOOT by default these days. 
But more when looking at what distro installers allow /boot to be: f2fs, ZFS, 
LUKS, LVM...  

Seems like a Pandora's box to me.

-- 
Chris Murphy
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