| What: /sys/firmware/efi/vars | |
| Date: April 2004, removed March 2023 | |
| Description: | |
| This directory exposed interfaces for interacting with | |
| EFI variables. For more information on EFI variables, | |
| see 'Variable Services' in the UEFI specification | |
| (section 7.2 in specification version 2.3 Errata D). | |
| The 'efivars' sysfs interface was removed in March of 2023, | |
| after being considered deprecated no later than September | |
| of 2020. Its functionality has been replaced by the | |
| 'efivarfs' filesystem. |