Bug#956752: Bug 956752: linux-image-rt-amd64: No access to EFI variables possible with rt kernels
Hi Diederik
Diederik de Haas schrieb am 07.06.22 um 15:11:
Is this still true with current kernels? At least with 5.10 from Stable, but
preferably with newer ones (evt from stable-backports).
Yes, the problem is still present (even in the latest backportss kernel)
as shown in the attachment.
root@debian:~# uname -a
Linux debian-test 5.10.0-14-amd64 #1 SMP Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:48 config_table
drwxr-xr-x 2 root root 0 Jun 8 14:47 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:48 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:48 fw_vendor
drwxr-xr-x 2 root root 0 Jun 8 14:48 mok-variables
-r--r--r-- 1 root root 4096 Jun 8 14:48 runtime
drwxr-xr-x 17 root root 0 Jun 8 14:48 runtime-map
-r-------- 1 root root 4096 Jun 8 14:48 systab
/sys/firmware/efi/efivars:
total 0
-rw-r--r-- 1 root root 85 Jun 8 14:47 AMITSESetup-c811fa38-42c8-4579-a9bb-60e94eddfb34
-rw-r--r-- 1 root root 8 Jun 8 14:47 AcpiGlobalVariable-af9ffd67-ec10-488a-9dfc-6cbf5ee22c2e
-rw-r--r-- 1 root root 134 Jun 8 14:47 Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 224 Jun 8 14:47 Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 409 Jun 8 14:47 Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 122 Jun 8 14:47 Boot0005-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 6 Jun 8 14:47 BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:47 BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:47 BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:47 ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:47 ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:47 ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:47 ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:47 ConsoleLock-368cda0d-cf31-4b9b-8cf6-e7d1bfff157e
-rw-r--r-- 1 root root 5 Jun 8 14:47 DebuggerSerialPortsEnabledVar-97ca1a5b-b760-4d1f-a54b-d19092032c90
-rw-r--r-- 1 root root 12 Jun 8 14:47 DriverHealthCount-7459a7d4-6533-4480-bba7-79e25a4443c9
-rw-r--r-- 1 root root 12 Jun 8 14:47 DriverHlthEnable-0885f288-418c-4be1-a6af-8bad61da08fe
-rw-r--r-- 1 root root 34 Jun 8 14:47 ErrOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:47 ErrOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:47 FPDT_Variable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:47 GnvsAreaVar-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:47 HobRomImage-dde1bc72-d45e-4209-ab85-14462d2f5074
-rw-r--r-- 1 root root 48 Jun 8 14:47 IccAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e077
-rw-r--r-- 1 root root 7 Jun 8 14:47 Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 7 Jun 8 14:47 LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 22 Jun 8 14:47 LegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 30 Jun 8 14:47 MeBiosExtensionSetup-1bad711c-d451-4241-b1f3-8537812e0c70
-rw-r--r-- 1 root root 8 Jun 8 14:47 MemCeil.-40312829-7891-4abd-b200-0c541b061939
-rw-r--r-- 1 root root 68 Jun 8 14:47 MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 8 Jun 8 14:47 MonotonicCounter-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 3052 Jun 8 14:47 MrcS3Resume-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:47 NBGopPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 17 Jun 8 14:47 NBPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 8 Jun 8 14:47 NetworkStackVar-d1405d16-7afc-4695-bb12-41459d3695a2
-rw-r--r-- 1 root root 140 Jun 8 14:47 NvRamSpdMap-717fc150-abd9-4614-8015-0b3323eab95c
-rw-r--r-- 1 root root 28 Jun 8 14:47 OA3MSDMvariable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 14 Jun 8 14:47 OemCpuData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 22 Jun 8 14:47 OldLegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0400_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0400_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_1_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_1_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_2_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_2_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_3_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_3_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_4_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_4_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0501_5_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0501_5_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:47 PNP0604_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:47 PNP0604_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:47 PchInit-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 20 Jun 8 14:47 PchS3Peim-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 8 Jun 8 14:47 PciSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 264 Jun 8 14:47 PetAlertCfg-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:47 PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:47 PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 68 Jun 8 14:47 PreviousMemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 12 Jun 8 14:47 S3SS-4bafc2b4-02dc-4104-b236-d6f1b98d9e84
-rw-r--r-- 1 root root 28 Jun 8 14:47 SaPegData-c4975200-64f1-4fb6-9773-f6a9f89d985e
-rw-r--r-- 1 root root 8 Jun 8 14:47 SbAslBufferPtrVar-01f33c25-764d-43ea-aeea-6b5a41f3f3e8
-rw-r--r-- 1 root root 12 Jun 8 14:47 ScramblerBaseSeed-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:47 SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 11 Jun 8 14:47 SerialPortsEnabledVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:47 Setup-80e1202e-2697-4264-9cc9-80762c3e5863
-rw-r--r-- 1 root root 864 Jun 8 14:47 Setup-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:47 SetupAmtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:47 SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 17 Jun 8 14:47 SetupPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 14 Jun 8 14:47 SetupSnbPpmFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 84 Jun 8 14:47 SignatureSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 16 Jun 8 14:47 SioSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 1565 Jun 8 14:47 StdDefaults-4599d26f-1a11-49b8-b91f-858745cff824
-rw-r--r-- 1 root root 5 Jun 8 14:47 TcgInternalSyncFlag-f3ed95df-828e-41c7-bca0-16c41965a634
-rw-r--r-- 1 root root 5 Jun 8 14:47 TdtAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e076
-rw-r--r-- 1 root root 6 Jun 8 14:47 Timeout-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:47 TxtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 12 Jun 8 14:47 USB_POINT-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 36 Jun 8 14:47 UsbSupport-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:47 WdtPersistentData-78ce2354-cfbc-4643-aeba-07a27fa892bf
[superfluous stuff deleted]
root@debian:~# uname -a
Linux debian-test 5.10.0-14-rt-amd64 #1 SMP PREEMPT_RT Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:50 config_table
dr-xr-xr-x 2 root root 0 Jun 8 14:49 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:50 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:50 fw_vendor
-r--r--r-- 1 root root 4096 Jun 8 14:50 runtime
-r-------- 1 root root 4096 Jun 8 14:50 systab
/sys/firmware/efi/efivars:
total 0
root@debian:~# uname -a
Linux debian-test 5.15.0-0.bpo.2-amd64 #1 SMP Debian 5.15.5-2~bpo11+1 (2022-01-02) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:51 config_table
drwxr-xr-x 2 root root 0 Jun 8 14:50 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:51 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:51 fw_vendor
drwxr-xr-x 2 root root 0 Jun 8 14:51 mok-variables
-r--r--r-- 1 root root 4096 Jun 8 14:51 runtime
drwxr-xr-x 17 root root 0 Jun 8 14:51 runtime-map
-r-------- 1 root root 4096 Jun 8 14:51 systab
/sys/firmware/efi/efivars:
total 0
-rw-r--r-- 1 root root 85 Jun 8 14:50 AMITSESetup-c811fa38-42c8-4579-a9bb-60e94eddfb34
-rw-r--r-- 1 root root 8 Jun 8 14:50 AcpiGlobalVariable-af9ffd67-ec10-488a-9dfc-6cbf5ee22c2e
-rw-r--r-- 1 root root 134 Jun 8 14:50 Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 224 Jun 8 14:50 Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 409 Jun 8 14:50 Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 122 Jun 8 14:50 Boot0005-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 6 Jun 8 14:50 BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:50 BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:50 BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:50 ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:50 ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:50 ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:50 ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:50 ConsoleLock-368cda0d-cf31-4b9b-8cf6-e7d1bfff157e
-rw-r--r-- 1 root root 5 Jun 8 14:50 DebuggerSerialPortsEnabledVar-97ca1a5b-b760-4d1f-a54b-d19092032c90
-rw-r--r-- 1 root root 12 Jun 8 14:50 DriverHealthCount-7459a7d4-6533-4480-bba7-79e25a4443c9
-rw-r--r-- 1 root root 12 Jun 8 14:50 DriverHlthEnable-0885f288-418c-4be1-a6af-8bad61da08fe
-rw-r--r-- 1 root root 34 Jun 8 14:50 ErrOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:50 ErrOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:50 FPDT_Variable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:50 GnvsAreaVar-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:50 HobRomImage-dde1bc72-d45e-4209-ab85-14462d2f5074
-rw-r--r-- 1 root root 48 Jun 8 14:50 IccAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e077
-rw-r--r-- 1 root root 7 Jun 8 14:50 Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 7 Jun 8 14:50 LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 22 Jun 8 14:50 LegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 30 Jun 8 14:50 MeBiosExtensionSetup-1bad711c-d451-4241-b1f3-8537812e0c70
-rw-r--r-- 1 root root 8 Jun 8 14:50 MemCeil.-40312829-7891-4abd-b200-0c541b061939
-rw-r--r-- 1 root root 68 Jun 8 14:50 MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 8 Jun 8 14:50 MonotonicCounter-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 3052 Jun 8 14:50 MrcS3Resume-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:50 NBGopPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 17 Jun 8 14:50 NBPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 8 Jun 8 14:50 NetworkStackVar-d1405d16-7afc-4695-bb12-41459d3695a2
-rw-r--r-- 1 root root 140 Jun 8 14:50 NvRamSpdMap-717fc150-abd9-4614-8015-0b3323eab95c
-rw-r--r-- 1 root root 28 Jun 8 14:50 OA3MSDMvariable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 14 Jun 8 14:50 OemCpuData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 22 Jun 8 14:50 OldLegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0400_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0400_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_1_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_1_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_2_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_2_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_3_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_3_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_4_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_4_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0501_5_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0501_5_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:50 PNP0604_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:50 PNP0604_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:50 PchInit-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 20 Jun 8 14:50 PchS3Peim-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 8 Jun 8 14:50 PciSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 264 Jun 8 14:50 PetAlertCfg-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:50 PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:50 PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 68 Jun 8 14:50 PreviousMemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 12 Jun 8 14:50 S3SS-4bafc2b4-02dc-4104-b236-d6f1b98d9e84
-rw-r--r-- 1 root root 28 Jun 8 14:50 SaPegData-c4975200-64f1-4fb6-9773-f6a9f89d985e
-rw-r--r-- 1 root root 8 Jun 8 14:50 SbAslBufferPtrVar-01f33c25-764d-43ea-aeea-6b5a41f3f3e8
-rw-r--r-- 1 root root 12 Jun 8 14:50 ScramblerBaseSeed-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:50 SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 11 Jun 8 14:50 SerialPortsEnabledVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:50 Setup-80e1202e-2697-4264-9cc9-80762c3e5863
-rw-r--r-- 1 root root 864 Jun 8 14:50 Setup-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:50 SetupAmtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:50 SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 17 Jun 8 14:50 SetupPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 14 Jun 8 14:50 SetupSnbPpmFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 84 Jun 8 14:50 SignatureSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 16 Jun 8 14:50 SioSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 1565 Jun 8 14:50 StdDefaults-4599d26f-1a11-49b8-b91f-858745cff824
-rw-r--r-- 1 root root 5 Jun 8 14:50 TcgInternalSyncFlag-f3ed95df-828e-41c7-bca0-16c41965a634
-rw-r--r-- 1 root root 5 Jun 8 14:50 TdtAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e076
-rw-r--r-- 1 root root 6 Jun 8 14:50 Timeout-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:50 TxtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 12 Jun 8 14:50 USB_POINT-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 36 Jun 8 14:50 UsbSupport-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:50 WdtPersistentData-78ce2354-cfbc-4643-aeba-07a27fa892bf
[superfluous stuff deleted]
root@debian:~# uname -a
Linux debian-test 5.15.0-0.bpo.2-rt-amd64 #1 SMP PREEMPT_RT Debian 5.15.5-2~bpo11+1 (2022-01-02) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:54 config_table
dr-xr-xr-x 2 root root 0 Jun 8 14:52 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:54 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:54 fw_vendor
-r--r--r-- 1 root root 4096 Jun 8 14:54 runtime
-r-------- 1 root root 4096 Jun 8 14:54 systab
/sys/firmware/efi/efivars:
total 0
root@debian:~# uname -a
Linux debian-test 5.16.0-0.bpo.4-amd64 #1 SMP PREEMPT Debian 5.16.12-1~bpo11+1 (2022-03-08) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:55 config_table
drwxr-xr-x 2 root root 0 Jun 8 14:55 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:55 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:55 fw_vendor
drwxr-xr-x 2 root root 0 Jun 8 14:55 mok-variables
-r--r--r-- 1 root root 4096 Jun 8 14:55 runtime
drwxr-xr-x 17 root root 0 Jun 8 14:55 runtime-map
-r-------- 1 root root 4096 Jun 8 14:55 systab
/sys/firmware/efi/efivars:
total 0
-rw-r--r-- 1 root root 85 Jun 8 14:55 AMITSESetup-c811fa38-42c8-4579-a9bb-60e94eddfb34
-rw-r--r-- 1 root root 8 Jun 8 14:55 AcpiGlobalVariable-af9ffd67-ec10-488a-9dfc-6cbf5ee22c2e
-rw-r--r-- 1 root root 134 Jun 8 14:55 Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 224 Jun 8 14:55 Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 409 Jun 8 14:55 Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 122 Jun 8 14:55 Boot0005-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 6 Jun 8 14:55 BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:55 BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:55 BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:55 ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 72 Jun 8 14:55 ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:55 ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:55 ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:55 ConsoleLock-368cda0d-cf31-4b9b-8cf6-e7d1bfff157e
-rw-r--r-- 1 root root 5 Jun 8 14:55 DebuggerSerialPortsEnabledVar-97ca1a5b-b760-4d1f-a54b-d19092032c90
-rw-r--r-- 1 root root 12 Jun 8 14:55 DriverHealthCount-7459a7d4-6533-4480-bba7-79e25a4443c9
-rw-r--r-- 1 root root 12 Jun 8 14:55 DriverHlthEnable-0885f288-418c-4be1-a6af-8bad61da08fe
-rw-r--r-- 1 root root 34 Jun 8 14:55 ErrOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 34 Jun 8 14:55 ErrOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 8 Jun 8 14:55 FPDT_Variable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:55 GnvsAreaVar-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 12 Jun 8 14:55 HobRomImage-dde1bc72-d45e-4209-ab85-14462d2f5074
-rw-r--r-- 1 root root 48 Jun 8 14:55 IccAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e077
-rw-r--r-- 1 root root 7 Jun 8 14:55 Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 7 Jun 8 14:55 LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 22 Jun 8 14:55 LegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 30 Jun 8 14:55 MeBiosExtensionSetup-1bad711c-d451-4241-b1f3-8537812e0c70
-rw-r--r-- 1 root root 8 Jun 8 14:55 MemCeil.-40312829-7891-4abd-b200-0c541b061939
-rw-r--r-- 1 root root 68 Jun 8 14:55 MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 8 Jun 8 14:55 MonotonicCounter-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 3052 Jun 8 14:55 MrcS3Resume-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:55 NBGopPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 17 Jun 8 14:55 NBPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 8 Jun 8 14:55 NetworkStackVar-d1405d16-7afc-4695-bb12-41459d3695a2
-rw-r--r-- 1 root root 140 Jun 8 14:55 NvRamSpdMap-717fc150-abd9-4614-8015-0b3323eab95c
-rw-r--r-- 1 root root 28 Jun 8 14:55 OA3MSDMvariable-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 14 Jun 8 14:55 OemCpuData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 22 Jun 8 14:55 OldLegacyDevOrder-a56074db-65fe-45f7-bd21-2d2bdd8e9652
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0400_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0400_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_1_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_1_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_2_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_2_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_3_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_3_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_4_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_4_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0501_5_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0501_5_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 7 Jun 8 14:55 PNP0604_0_NV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 13 Jun 8 14:55 PNP0604_0_VV-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:55 PchInit-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 20 Jun 8 14:55 PchS3Peim-e6c2f70a-b604-4877-85ba-deec89e117eb
-rw-r--r-- 1 root root 8 Jun 8 14:55 PciSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 264 Jun 8 14:55 PetAlertCfg-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:55 PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 10 Jun 8 14:55 PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 68 Jun 8 14:55 PreviousMemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r-- 1 root root 12 Jun 8 14:55 S3SS-4bafc2b4-02dc-4104-b236-d6f1b98d9e84
-rw-r--r-- 1 root root 28 Jun 8 14:55 SaPegData-c4975200-64f1-4fb6-9773-f6a9f89d985e
-rw-r--r-- 1 root root 8 Jun 8 14:55 SbAslBufferPtrVar-01f33c25-764d-43ea-aeea-6b5a41f3f3e8
-rw-r--r-- 1 root root 12 Jun 8 14:55 ScramblerBaseSeed-87f22dcb-7304-4105-bb7c-317143ccc23b
-rw-r--r-- 1 root root 5 Jun 8 14:55 SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 11 Jun 8 14:55 SerialPortsEnabledVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 8 Jun 8 14:55 Setup-80e1202e-2697-4264-9cc9-80762c3e5863
-rw-r--r-- 1 root root 864 Jun 8 14:55 Setup-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:55 SetupAmtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:55 SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 17 Jun 8 14:55 SetupPlatformData-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 14 Jun 8 14:55 SetupSnbPpmFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 84 Jun 8 14:55 SignatureSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 16 Jun 8 14:55 SioSerialPortsLocationVar-560bf58a-1e0d-4d7e-953f-2980a261e031
-rw-r--r-- 1 root root 1565 Jun 8 14:55 StdDefaults-4599d26f-1a11-49b8-b91f-858745cff824
-rw-r--r-- 1 root root 5 Jun 8 14:55 TcgInternalSyncFlag-f3ed95df-828e-41c7-bca0-16c41965a634
-rw-r--r-- 1 root root 5 Jun 8 14:55 TdtAdvancedSetupDataVar-7b77fb8b-1e0d-4d7e-953f-3980a261e076
-rw-r--r-- 1 root root 6 Jun 8 14:55 Timeout-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 5 Jun 8 14:55 TxtFeatures-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 12 Jun 8 14:55 USB_POINT-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r-- 1 root root 36 Jun 8 14:55 UsbSupport-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9
-rw-r--r-- 1 root root 5 Jun 8 14:55 WdtPersistentData-78ce2354-cfbc-4643-aeba-07a27fa892bf
[superfluous stuff deleted]
root@debian:~# uname -a
Linux debian-test 5.16.0-0.bpo.4-rt-amd64 #1 SMP PREEMPT_RT Debian 5.16.12-1~bpo11+1 (2022-03-08) x86_64 GNU/Linux
root@debian:~# ls -lR /sys/firmware/efi/
/sys/firmware/efi/:
total 0
-r--r--r-- 1 root root 4096 Jun 8 14:56 config_table
dr-xr-xr-x 2 root root 0 Jun 8 14:56 efivars
-r--r--r-- 1 root root 4096 Jun 8 14:56 fw_platform_size
-r--r--r-- 1 root root 4096 Jun 8 14:56 fw_vendor
-r--r--r-- 1 root root 4096 Jun 8 14:56 runtime
-r-------- 1 root root 4096 Jun 8 14:56 systab
/sys/firmware/efi/efivars:
total 0
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