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Skribent: Clarke Sideroad
Dato:  
Til: dng
Emne: Re: [DNG] Systemd at work: rm -rf EFI
On 02/01/2016 06:12 PM, Wim wrote:
> Hi all,
>
> It seems you can delete EFI vars if you're not careful. Someone found
> that executing "rm -rf --no-preserve-root /" also deleted EFI vars,
> turning his MSI Notebook into a brick.
>
> It also seems mounting these is hardcoded into systemd:
>
> https://bbs.archlinux.org/viewtopic.php?id=207549
>
> efibootmgr needs to write to EFI vars, it seems. Here's Poettering's answer:
>
> https://github.com/systemd/systemd/issues/2402
>
> Well, you've probably guessed the answer - Won't fix.
>


The guy is unbelievable, but as you point out predictable.
There is a big difference between hosing a operating system install and
bricking a piece of hardware.

Lots of hardware has bugs that need a work around and stuff like ROMs
that should only be RW if required. Ignoring it, not even stating a
logical position and closing the topic just shows the quality of the man
and his products.

Looking around he seems to have a lot of apologist on his side that
really don't have a grasp of the situation.

One wonders if it is confined only to the one piece of hardware or if
there are others that may share the code, looks like a potential exploit
to me.

Some of you can just be glad that there is no room on most embedded
systems for the systemd shenanigans. (-;


Clarke