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

[Kay Sievers]

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.

Kay