On Mon, Jun 14, 2021 at 08:40:17PM +0000, Alyssa Ross wrote:
> In a script, I wanted to look up the device node for the booted EFI
> partition. systemd-boot exposes this in an EFI variable but it's
> uppercase, so when I tried to do this, it didn't work:
>
> findfs "(< /sys/firmware/efi/vars/LoaderDevicePartUUID-4a67b082-0a4c-41cf-b6c7-440)"
Bogus command here, sorry. It should have been:
findfs PARTUUID="$(cat /sys/firmware/efi/vars/LoaderDevicePartUUID-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f/data)"
But my point stands. :)
> This was very confusing to me, and I lost some time trying to figure
> out what was wrong before I realised that case of UUIDs was
> significant to findfs.
>
> Here, I've made comparisons of UUID and PARTUUID case-insensitive in
> libblkid, which fixes the command above.
>
> Signed-off-by: Alyssa Ross <hi@xxxxxxxxx>
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