amd64: $ uname -a Linux amd64-secureboot-testing 6.6.0-1001-oracle #1-Ubuntu SMP Thu Nov 30 17:29:05 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
$ sudo dmesg | grep secure [ 0.000000] secureboot: Secure boot enabled
$ cat /sys/kernel/security/lockdown none [integrity] confidentiality
arm64: $ uname -a Linux arm64-secureboot-testing 6.6.0-1001-oracle #1-Ubuntu SMP Thu Nov 30 19:23:35 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux
amd64: t-testing 6.6.0-1001-oracle #1-Ubuntu SMP Thu Nov 30 17:29:05 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
$ uname -a
Linux amd64-secureboo
$ sudo dmesg | grep secure
[ 0.000000] secureboot: Secure boot enabled
$ cat /sys/kernel/ security/ lockdown
none [integrity] confidentiality
arm64: t-testing 6.6.0-1001-oracle #1-Ubuntu SMP Thu Nov 30 19:23:35 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux
$ uname -a
Linux arm64-secureboo
$ sudo dmesg | grep secure
[ 0.000000] secureboot: Secure boot enabled
$ cat /sys/kernel/ security/ lockdown
none [integrity] confidentiality