(works on Slackware 14.2+, not tested on 14.1 and before) ====== View EFI boot menu contents ====== sudo efibootmgr Will return something like: BootCurrent: 0001 Timeout: 10 seconds BootOrder: 0000,0001,0004,9999 Boot0000* Windows Boot Manager Boot0001* Slackware Boot0004* Internal Hard Disk Boot9999* USB Drive (UEFI) ====== Change EFI boot order ====== sudo efibootmgr -o 0001,0000,0004,9999 Will return something like: BootCurrent: 0001 Timeout: 10 seconds BootOrder: 0001,0000,0004,9999 Boot0000* Windows Boot Manager Boot0001* Slackware Boot0004* Internal Hard Disk Boot9999* USB Drive (UEFI) ====== Remove old EFI menu items ====== When you remove/replace old OS installs, the EFI boot menu retains references to them. To remove these old references: List the current boot entries: sudo efibootmgr Then delete the desired entry: sudo efibootmgr -Bb 0000 WHERE: 0000 is the menu entry number. ====== Sources ====== * Originally written by [[wiki:user:arfon | arfon]] {{tag>UEFI EFI author_arfon }}