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If it's a similar laptop I assume you have grub2 installed in EFI mode. |
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Check if you have grubx64.efi in your EFI partition (usually /<mounted EFI |
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partition>/EFI/gentoo/). |
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Also check if you have efi boot entry for grub with efibootmgr utility. if |
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grub-install with EFI target was used on a new system it should call |
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efibootmgr to add a Gentoo entry in UEFI). |
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|
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If you are trying to install grub in legacy mode then look in UEFI settings |
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if CSM or legacy boot is enabled. But since you have win11 and you want |
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dual boot I don't think that it's what you want. Os-prober will not pick up |
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EFI win11 installation if grub is installed in legacy and you can't install |
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win11 in legacy since Microsoft made win11 UEFI-only. |
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|
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On Sun, Apr 10, 2022, 15:15 Helmut Jarausch <jarausch@××××××.be> wrote: |
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|
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> Hi, |
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> |
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> I have purchased a new Laptop with Windows 11 pre-installed. |
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> I have managed to do (so far) |
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> |
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> - shrink the Windows partition (from within Windows since it's |
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> encrypted) |
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> - turned off secure boot to be able to boot a Linux rescue system from |
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> USB |
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> - created new partitions (boot, root and home) |
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> - copied a gentoo system from a similar laptop onto the root partition |
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> - reinstalled grub2 (after doing chroot) |
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> |
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> My problem now is that I can't select the Gentoo partition within BIOS |
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> since this partition isn't offered as a boot option. |
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> |
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> Many thanks for any hints or pointers, |
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> Helmut |
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> |
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> |