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Thread: Can't boot after update

  1. #1
    Join Date
    Jun 2007
    Beans
    140

    Can't boot after update

    I'm running 18.04 on my Dell XPS 15 9570, in dual boot mode with Windows 10. I have not disabled secure boot, because it all seemed to be working well. Last night I ran software updater and I can no longer boot the machine. I'm seeing:

    Code:
    error: /boot/vmlinuz-5.0.0-21-generic has invalid signature.
    error: you need to load the kernel first
    Poking around the net for similar errors, this appears to be related to secure boot. Is there any way to get my machine back up and running without turning off secure boot?

    Thanks,
    Craig
    Last edited by csete; July 19th, 2019 at 05:03 PM.

  2. #2
    Join Date
    Jan 2018
    Beans
    1

    Re: Can't boot after update

    I am getting the Invalid signature error when I updated to Ubuntu 18.04. Before update, I had Windows 10 home and Kali Linux. Now while booting Kali , I get this error. Windows is booting fine.
    I don't want to change secure boot settings

    error: /boot/vmlinuz-4.15.0-kali2-amd64 has invalid signature
    error: you need to load the kernel first.

    Press any key to continue...

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