Bootloader: Difference between revisions
imported>Lassulus remove deprecated warning |
imported>Scvalex Mention nixos-enter as the easier way of entering an installed system from installation media, and expand the tips. |
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==== From an installation media ==== | ==== From an installation media ==== | ||
Booting from the installation media, mount the root partition | Booting from the installation media, mount the root partition under <code>/mnt</code> and the boot partition under <code>/mnt/boot</code>. Next, enter the installed system with <code>nixos-enter</code>, or by manually binding the virtual filesystems and then calling <code>chroot</code>. Finally, run the [https://github.com/NixOS/nixpkgs/blob/e140d71d6330786c40b4bd9c0d59af7ad1a5e86a/nixos/modules/installer/tools/nixos-install.sh#L191-L192 command that the installer would run]. This will re-install the bootloader. | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
mount /dev/[root partition] /mnt | mount /dev/[root partition] /mnt | ||
mount /dev/[boot partition] /mnt/boot | |||
</syntaxhighlight> | </syntaxhighlight> | ||
With <code>nixos-enter</code>: | |||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
nixos-enter | |||
NIXOS_INSTALL_BOOTLOADER=1 /nix/var/nix/profiles/system/bin/switch-to-configuration boot | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Or manually: | |||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
Tip: Be patient, it may take some times to re-install the bootloader for you. | |||
Tip: | Tip: If the installation command fails with "<code>systemd-boot not installed in ESP</code>", try running <code>bootctl install</code>. | ||
Tip: If you've replaced your drives, or have otherwise re-created the <code>/mnt/boot</code> partition, you may want to keep using the same UUID for it. You can use <code>mlabel</code> from the <code>mtools</code> package for this. | |||
=== New generations are not in the boot menu === | === New generations are not in the boot menu === | ||