Kernel successfully booted under Secure Boot
$ dmesg | grep -i secure │ [ 0.000000] secureboot: Secure boot enabled [ 0.000000] Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7 [ 0.004664] secureboot: Secure boot enabled [ 1.261359] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing: 61482aa2830d0ab2ad5af10b7250da9033ddcef0' [ 1.263272] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2017): 242ade75ac4a15e50d50c84b0d45ff3eae707a03' [ 1.264367] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (ESM 2018): 365188c1d374d6b07c3c8f240f8ef722433d6a8b' [ 1.265475] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2019): c0746fd6c5da3ae827864651ad66ae47fe24b3e8' [ 1.266546] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v1): a8d54bbb3825cfb94fa13c9f8a594a195c107b8d' [ 1.267868] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v2): 4cf046892d6fd3c9a5b03f98d845f90851dc6a8c' [ 1.269048] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v3): 100437bb6de6e469b581e61cd66bce3ef4ed53af' [ 1.270148] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (Ubuntu Core 2019): c1d57b8f6b743f23ee41f4f7ee292f06eecadfb9' root@noble-signing-vm:~# cat /sys/kernel/security/lockdown none [integrity] confidentialit
Kernel successfully booted under Secure Boot
$ dmesg | grep -i secure │ 2ad5af10b7250da 9033ddcef0' 50d50c84b0d45ff 3eae707a03' 07c3c8f240f8ef7 22433d6a8b' 827864651ad66ae 47fe24b3e8' 94fa13c9f8a594a 195c107b8d' 9a5b03f98d845f9 0851dc6a8c' 9b581e61cd66bce 3ef4ed53af' 3ee41f4f7ee292f 06eecadfb9' signing- vm:~# cat /sys/kernel/ security/ lockdown
[ 0.000000] secureboot: Secure boot enabled
[ 0.000000] Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7
[ 0.004664] secureboot: Secure boot enabled
[ 1.261359] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing: 61482aa2830d0ab
[ 1.263272] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2017): 242ade75ac4a15e
[ 1.264367] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (ESM 2018): 365188c1d374d6b
[ 1.265475] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2019): c0746fd6c5da3ae
[ 1.266546] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v1): a8d54bbb3825cfb
[ 1.267868] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v2): 4cf046892d6fd3c
[ 1.269048] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (2021 v3): 100437bb6de6e46
[ 1.270148] Loaded X.509 cert 'Canonical Ltd. Secure Boot Signing (Ubuntu Core 2019): c1d57b8f6b743f2
root@noble-
none [integrity] confidentialit