Ubuntu – Integrity: problem loading X.509 certificate -65 before login

20.04bioscertificatesdual-bootlenovo

I was able to clean any error displayed before log into Ubuntu 20.04.1.
I am using the newest Kernel version 5.9.1 , because my Lenovo had issues with graphic drivers at actual stable version.

I am using dual boot and I have only 1 SSD disk.

Displayed info/error are at picture below:

enter image description here

Best Answer

  • I fixed this message into my laptop Bios. All you need to do is :

    1: Disable the Secure Boot

    2: Reset Setup Mode ( this function is in Bios )

    After that, * just exit Bios and save changes.*

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