Boot issues after upgrading to ZorinOS 18

General Help
1

Hi,

I was trying to upgrade from ZorinOS 17 to 18 on a dual-boot machine (Windows 10 and Zorin); the upgrade process went fine, but once the machine rebooted, I started seeing the errors as depicted in this image:

boot issue
boot issue1000×200 76.4 KB

By changing the boot settings in my BIOS, I could boot into Windows and fiddle with the boot options so that I could get the GRUB menu, giving me the option to boot into Zorin or Windows at system start.

Now, the problem is, I cannot boot from my USB disk or a "live CD" anymore since I get the exact same message as shown in the image above.

Basically I can only either boot into Windows directly or go to the GRUB menu but any other option fails. Unfortunately, I do require booting from that USB disk time to time.

Any ideas what to do here?

p.s. secure boot is disabled.

2

Welcome to the Forum!

Was Secure Boot active before the Upgrade?

3

no, it has always been disabled.

4

I would really appreciate if someone can help me here

5
  1. Go to the Bios
  2. Set Secure Boot On
  3. Choose Key Mangement
  4. Removes all security keys
  5. Set secure boot off.
  6. Save changes and exit
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    image
    image919×401 40 KB
2 Likes
6

I got no security keys there :frowning: