FM / efivars

/sys/firmware/efi/efivars

Name	Size	Mode	Actions
Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c	66	0644	edit dl rm
Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c	88	0644	edit dl rm
Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c	134	0644	edit dl rm
BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c	6	0644	edit dl rm
BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c	8	0644	edit dl rm
BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c	10	0644	edit dl rm
certdb-d9bee56e-75dc-49d9-b4d7-b534210f637a	8	0644	edit dl rm
certdbv-d9bee56e-75dc-49d9-b4d7-b534210f637a	8	0644	edit dl rm
ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c	126	0644	edit dl rm
ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c	695	0644	edit dl rm
ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c	107	0644	edit dl rm
ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c	691	0644	edit dl rm
db-d719b2cb-3d3a-4596-a3bc-dad00e67656f	3147	0644	edit dl rm
dbx-d719b2cb-3d3a-4596-a3bc-dad00e67656f	17840	0644	edit dl rm
ErrOut-8be4df61-93ca-11d2-aa0d-00e098032b8c	77	0644	edit dl rm
ErrOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c	691	0644	edit dl rm
KEK-8be4df61-93ca-11d2-aa0d-00e098032b8c	2540	0644	edit dl rm
Key0000-8be4df61-93ca-11d2-aa0d-00e098032b8c	18	0644	edit dl rm
Key0001-8be4df61-93ca-11d2-aa0d-00e098032b8c	18	0644	edit dl rm
Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c	8	0644	edit dl rm
LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c	17	0644	edit dl rm
MokListRT-605dab50-e046-4300-abb6-3dd810dd8b23	4685	0644	edit dl rm
MokListTrustedRT-605dab50-e046-4300-abb6-3dd810dd8b23	5	0644	edit dl rm
MokListXRT-605dab50-e046-4300-abb6-3dd810dd8b23	80	0644	edit dl rm
MTC-eb704011-1402-11d3-8e77-00a0c969723b	8	0644	edit dl rm
OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c	12	0644	edit dl rm
PK-8be4df61-93ca-11d2-aa0d-00e098032b8c	980	0644	edit dl rm
PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c	7	0644	edit dl rm
PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c	22	0644	edit dl rm
PlatformRecovery0000-8be4df61-93ca-11d2-aa0d-00e098032b8c	112	0644	edit dl rm
SbatLevelRT-605dab50-e046-4300-abb6-3dd810dd8b23	22	0644	edit dl rm
SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c	5	0644	edit dl rm
SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c	5	0644	edit dl rm
SignatureSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c	100	0644	edit dl rm
Timeout-8be4df61-93ca-11d2-aa0d-00e098032b8c	6	0644	edit dl rm
VarErrorFlag-04b37fe8-f6ae-480b-bdd5-37d98c5e89aa	5	0644	edit dl rm
VendorKeys-8be4df61-93ca-11d2-aa0d-00e098032b8c	5	0644	edit dl rm
VMMBootOrder0000-668f4529-63d0-4bb5-b65d-6fbb9d36a44a	32	0644	edit dl rm

Edit: /sys/firmware/efi/efivars/BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c (10B)

cmd: