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I'm a Mint user. I was trying to solve a problem, which is that when I suspend my PC I can't resume. I found on stack exchange Ubuntu an answer saying to use "ukuu" in order to upgrade the kernel. This was supposed to solve the problem. However, after I installed ukuu, I ran "ukuu --install-latest" and I rebooted my PC, I got the error "error: /boot/vmlinuz-5.0.9-050009-generic has invalid signature. error: you need to load the kernel first".

  • you may get some answers if you ask an actual question .... i see a reference to three different problems in your post ..... which one do you need help with – jsotola Apr 24 at 3:05

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