Sorry here is what does not work:
(initramfs) echo "81780AD9-068C-4A80-A795-56856973B8F9" | tr '[:upper:]' '[:lower:]'
81780AD9-068C-4A80-A795-56856973B8F9
Sorry here is what does not work:
(initramfs) echo "81780AD9- 068C-4A80- A795-56856973B8 F9" | tr '[:upper:]' '[:lower:]'
81780AD9- 068C-4A80- A795-56856973B8 F9