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Topic: Bios update wiped artix UEFI entry (Read 694 times) previous topic - next topic
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Bios update wiped artix UEFI entry

Quote
UEFI motherboards wipe their NVRAM entries when you update the firmware
although my win11 entry was left intact
 :o  Now I need to get my UEFI artix entry back

Thing is that I have 2nd hdd with legacy grub installed. Thus I could choose there to boot from my 1st hdd's artix partition. And then I tried
grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=grub
and
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=grub
resulting in 
EFI variables are not supported on this system

So what's the easiest way to back artix entry on my 1st hdd?


Re: Bios update wiped artix UEFI entry

Reply #3 –
Quote from: dr-kart – on
although my win11 entry was left intact
 :o  Now I need to get my UEFI artix entry back

Thing is that I have 2nd hdd with legacy grub installed. Thus I could choose there to boot from my 1st hdd's artix partition. And then I tried
grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=grub
and
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=grub
resulting in 
EFI variables are not supported on this system

So what's the easiest way to back artix entry on my 1st hdd?




Why are you re-installing the grub EFI bootloader?
Your UEFI firmware's entry to the EFI executable was wiped, not the executable itself
Go to your UEFI firmware's menu, I'm pretty sure there is an option to search EFI partitions for executables, you can add the grub EFI bootloader from there.

Re: Bios update wiped artix UEFI entry

Reply #5 –
The only way I know to mess with Linux uefi is to install Linux first then Install windows.
Cat Herders of Linux

Re: Bios update wiped artix UEFI entry

Reply #6 –
sure thing.
That's why win11 was the first to install in my case.

Re: Bios update wiped artix UEFI entry

Reply #7 –
Can you give us a list of all your block devices? do a lsblk -f

Re: Bios update wiped artix UEFI entry

Reply #8 –
                                                                              
├─sda1 vfat   FAT32              76EB-6981                              36,6M    62% /boot/efi
├─sda2                                                                              
├─sda3 ntfs                      6004F48004F54A8C                                   
└─sda4 ext4   1.0                54f2804c-800d-547b-bbfd-2442a8b16056    188G    56% /
            

Re: Bios update wiped artix UEFI entry

Reply #9 –
sda3 - win11
sda4 - artix (the subject of topic)

Re: Bios update wiped artix UEFI entry

Reply #10 –
Your UEFI entry was configured during Artix install, thus it can be reconfigured again. Try booting from Artix installation media, then chroot into your system as during the manual install, and run update-grub from there. This should update EFI variables.