[systemd-devel] Partition discovery broken, invalid UUID in efi variable

[Lennart Poettering]

On Fri, 21.03.14 17:24, Thomas Weißschuh (thomas at t-8ch.de) wrote:

> On Fri, Mar 21, 2014 at 06:04:24PM +0100, Kay Sievers wrote:
> >On Fri, Mar 21, 2014 at 5:55 PM, Thomas Weißschuh <thomas at t-8ch.de> wrote:
> >> On Fri, Mar 21, 2014 at 05:43:48PM +0100, Kay Sievers wrote:
> >>> On Fri, Mar 21, 2014 at 8:28 AM, Thomas Weißschuh <thomas at t-8ch.de> wrote:
> >>> > While trying to use the discovereable partitions stuff I ran into the following:
> >>> >
> >>> > Running systemd-efi-boot-generator on my machine results in:
> >>> > "Failed to read ESP partition UUID: Input/output error"
> >>> > The cause for this is that, the efi variable LoaderDevicePartUUID which is
> >>> > supposed to hold an UUID only contains the literal string "ESP", which can't be
> >>> > parsed by systemd.
> >>>
> >>> What does this say on your box?
> >>>   $ cat /sys/firmware/efi/efivars/LoaderDeviceIdentifier-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f
> >>>    Acpi(PNP0A03,0)/Pci(1F|2)/?/HD(Part1,Sig000012AF-0666-0000-EA27-0000D6190000)
> >>
> >> $ cat /sys/firmware/efi/efivars/LoaderDeviceIdentifier-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f
> >> Acpi(PNP0A03,0)/Pci(1F/2)/?/HD(Part1,SigESP)
> >
> > Your setup uses the *type* UUID for the EFI system partition as the
> > *object* UUID of the partition?
> >
> > If that's the case, this cannot really work, object UUIDs need to be
> > unique, created from randomness, not pre-defined.
> 
> This did also seem wrong to me. So it is definitevely a broken system and no
> configuration error on my part?

Depends. How did the ESP get set up? Did you do that manually, or did
the hw vendor do that? Some installer?

Lennart

-- 
Lennart Poettering, Red Hat