Ubuntu grub not updating
We also know about such documented cases with both X9SCM-F and X9DR7-LN4F motherboards with Ubuntu Launchpad. If there are missing UEFI boot entries after the core update they can be restored as described below after restarting the system.
The following example illustrates a case where after the Grub update there are missing UEFI boot images: [email protected]:~$ sudo efibootmgr -v Boot Current: 0001 Timeout: 10 seconds Boot Order: 0001,0000,0002,0003,0005 Boot0000* ubuntu HD(1,800,f3800,caff37a0-8078-4b24-956e-79eb5e33631f)File(\EFI\ubuntu\grubx64.efi) Boot0001* ubuntu2 HD(1,800,f3800,957eb480-5f2f-409e-95b8-62c38a3305c0)File(\EFI\ubuntu2\grubx64.efi) [email protected]:~$ sudo apt-get update; apt-get upgrade [...] Reading state information...
I have found that if that file in /etc was originally red when viewed in a listing of files in /etc, then the likelihood was that the installed system was installed in bios mode, not efi. But if you ran grub2-mkconfig mentioned in #2, then the link would exist, but it wouldn't make any difference to the bios installed system because it's an efi system link.
It's more complicated to configure with all kinds of scripts to wade through, and instead of having a nice fairly simple script is reliable for finding kernels, boot files, and adding all operating systems to your GRUB boot menu, so you don't have to do it manually.
We're going to learn how to fix two of the more common failures.
Arch Linux was installed on the system following this instructions.
The Install and configure boot loader section was omitted completely.