some information shared by Ivan: - https://wiki.canonical.com/IvanHu/Kernel_Lockdown - kernel parameter lockdown=none, but I recalled the secureboot enabled will force it lockdown.
The lockdown status cat be check by `sudo cat /sys/kernel/security/lockdown` [1]
[1] https://lwn.net/Articles/791863/
some information shared by Ivan: /wiki.canonical .com/IvanHu/ Kernel_ Lockdown
- https:/
- kernel parameter lockdown=none, but I recalled the secureboot enabled will force it lockdown.
The lockdown status cat be check by `sudo cat /sys/kernel/ security/ lockdown` [1]
[1] https:/ /lwn.net/ Articles/ 791863/