| 1 |
Also if you've booted your live media in legacy mode then efibootmgr might |
| 2 |
not do anything because efivars are not accessible in this mode. That could |
| 3 |
explain the situation when you have grubx64.efi but no boot entry. So check |
| 4 |
that you're booting live system in UEFI too. |
| 5 |
|
| 6 |
On Sun, Apr 10, 2022, 20:02 Michael <confabulate@××××××××.com> wrote: |
| 7 |
|
| 8 |
> On Sunday, 10 April 2022 14:58:26 BST Серега Филатов wrote: |
| 9 |
> > If it's a similar laptop I assume you have grub2 installed in EFI mode. |
| 10 |
> > Check if you have grubx64.efi in your EFI partition (usually /<mounted |
| 11 |
> EFI |
| 12 |
> > partition>/EFI/gentoo/). |
| 13 |
> > Also check if you have efi boot entry for grub with efibootmgr utility. |
| 14 |
> if |
| 15 |
> > grub-install with EFI target was used on a new system it should call |
| 16 |
> > efibootmgr to add a Gentoo entry in UEFI). |
| 17 |
> > |
| 18 |
> > If you are trying to install grub in legacy mode then look in UEFI |
| 19 |
> settings |
| 20 |
> > if CSM or legacy boot is enabled. But since you have win11 and you want |
| 21 |
> > dual boot I don't think that it's what you want. Os-prober will not pick |
| 22 |
> up |
| 23 |
> > EFI win11 installation if grub is installed in legacy and you can't |
| 24 |
> install |
| 25 |
> > win11 in legacy since Microsoft made win11 UEFI-only. |
| 26 |
> |
| 27 |
> Some UEFI firmware is buggy and may not pick up a new OS bootloader in the |
| 28 |
> ESP, |
| 29 |
> at least not pick it up initially. In these cases temporarily changing a |
| 30 |
> UEFI |
| 31 |
> setting to nudge the firmware to parse the ESP for boot menu entries will |
| 32 |
> help. |
| 33 |
> So /should/ running the efibootmgr to create an entry with grub's efi |
| 34 |
> image. |
Archives