Comment 3 for bug 2062959

Secure boot / kernel lockdown verified with positive result.

ubuntu@noblesecure:~$ uname -r
6.8.0-1003-gke
ubuntu@noblesecure:~$ sudo dmesg | grep -i lockdown
[ 0.000000] Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7
[ 0.198924] LSM: initializing lsm=lockdown,capability,landlock,yama,apparmor,bpf,integrity
[ 1.214572] Lockdown: swapper/0: hibernation is restricted; see man kernel_lockdown.7
ubuntu@noblesecure:~$ cat /sys/kernel/security/lockdown
none [integrity] confidentiality
ubuntu@noblesecure:~$