On Sun, Apr 10, 2022 at 6:59 AM Серега Филатов <raxp.worm...@gmail.com> wrote: > > If it's a similar laptop I assume you have grub2 installed in EFI mode. > Check if you have grubx64.efi in your EFI partition (usually /<mounted EFI > partition>/EFI/gentoo/). > Also check if you have efi boot entry for grub with efibootmgr utility. if > grub-install with EFI target was used on a new system it should call > efibootmgr to add a Gentoo entry in UEFI). > > If you are trying to install grub in legacy mode then look in UEFI settings > if CSM or legacy boot is enabled. But since you have win11 and you want dual > boot I don't think that it's what you want. Os-prober will not pick up EFI > win11 installation if grub is installed in legacy and you can't install win11 > in legacy since Microsoft made win11 UEFI-only. > > On Sun, Apr 10, 2022, 15:15 Helmut Jarausch <jarau...@skynet.be> wrote: >> >> Hi, >> >> I have purchased a new Laptop with Windows 11 pre-installed. >> I have managed to do (so far) >> >> - shrink the Windows partition (from within Windows since it's >> encrypted) >> - turned off secure boot to be able to boot a Linux rescue system from >> USB >> - created new partitions (boot, root and home) >> - copied a gentoo system from a similar laptop onto the root partition >> - reinstalled grub2 (after doing chroot) >> >> My problem now is that I can't select the Gentoo partition within BIOS >> since this partition isn't offered as a boot option. >> >> Many thanks for any hints or pointers, >> Helmut >>
An example: root@science2:~# ls -al /boot/efi/ total 6 drwx------ 3 root root 1024 Dec 31 1969 . drwxr-xr-x 4 root root 4096 Mar 29 14:37 .. drwx------ 5 root root 1024 Feb 13 15:35 EFI root@science2:~# ls -al /boot/efi/EFI/ total 5 drwx------ 5 root root 1024 Feb 13 15:35 . drwx------ 3 root root 1024 Dec 31 1969 .. drwx------ 2 root root 1024 Feb 13 15:35 Boot drwx------ 4 root root 1024 Dec 1 20:43 Microsoft drwx------ 2 root root 1024 Feb 13 15:35 ubuntu root@science2:~# ls -al /boot/efi/EFI/Boot/ total 1857 drwx------ 2 root root 1024 Feb 13 15:35 . drwx------ 5 root root 1024 Feb 13 15:35 .. -rwx------ 1 root root 955656 Feb 13 15:35 bootx64.efi -rwx------ 1 root root 85672 Feb 13 15:35 fbx64.efi -rwx------ 1 root root 856232 Feb 13 15:35 mmx64.efi root@science2:~# ls -al /boot/efi/EFI/Microsoft/ total 8 drwx------ 4 root root 1024 Dec 1 20:43 . drwx------ 5 root root 1024 Feb 13 15:35 .. drwx------ 40 root root 5120 Dec 1 20:43 Boot drwx------ 2 root root 1024 Dec 1 20:44 Recovery root@science2:~# ls -al /boot/efi/EFI/ubuntu/ total 3457 drwx------ 2 root root 1024 Feb 13 15:35 . drwx------ 5 root root 1024 Feb 13 15:35 .. -rwx------ 1 root root 108 Feb 13 15:35 BOOTX64.CSV -rwx------ 1 root root 117 Feb 13 15:35 grub.cfg -rwx------ 1 root root 1722240 Feb 13 15:35 grubx64.efi -rwx------ 1 root root 856232 Feb 13 15:35 mmx64.efi -rwx------ 1 root root 955656 Feb 13 15:35 shimx64.efi root@science2:~#
