Not able to access the system after an upgrade

There are a few different things that could be going on, but this move might be causing some issues:

Grub stores its stuff on the EFI partition, but the kernel is stored in /boot which is on the other partition. I don’t know if that is causing your problem or not but it seems like there is space for something to go wrong here.

Try something like this:

  • Delete EFI boot entries and re-install (not update) grub, as is described in this post:
  • Reinstall all kernels you would like to keep using (don’t forget to reinstall the headers too)
  • Then update Grub, reboot and check again.
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