Comment 3 for bug 1892131

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Alex Tu (alextu) wrote :

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/