On Tue, Jun 15, 2021 at 12:07 AM Alyssa Ross <hi@xxxxxxxxx> wrote: > > 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. :) probably could use a pipe after cat, like: cat ... | tr [:lower:] [:upper:] or patch util-linux docs, to implicitly state that comparison is done with upper case letters (UUID)... Not sure which way is better (including your patch). Thanks.
