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ElvishJerricco: You don't bind mount drives.

2025-06-29T20:46:05Z

You don't bind mount drives.

← Older revision		Revision as of 20:46, 29 June 2025
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	<~~syntaxHighlight~~ lang=console>		<syntaxhighlight lang="console">
	$ mount ~~-o bind~~ /dev/disk/by-label/<ROOT_LABEL> /mnt/		$ mount /dev/disk/by-label/<ROOT_LABEL> /mnt/
	$ # mount any partitions you might have; here we assume only home and nix exist		$ # mount any partitions you might have; here we assume only home and nix exist
	$ mkdir -p /mnt/{home,nix}		$ mkdir -p /mnt/{home,nix}
	$ mount ~~-o bind~~ /dev/disk/by-label/<HOME_LABEL> /mnt/home		$ mount /dev/disk/by-label/<HOME_LABEL> /mnt/home
	$ mount ~~-o bind~~ /dev/disk/by-label/<NIX_LABEL> /mnt/nix		$ mount /dev/disk/by-label/<NIX_LABEL> /mnt/nix
	</~~syntaxHighlight~~>		</syntaxhighlight>

imported>Hucksy: Add more details for nixos-enter and a troubleshooting section

2024-03-03T12:54:14Z

Add more details for nixos-enter and a troubleshooting section

@@ Line 6: / Line 6: @@
 The nixos-enter program is part of NixOS. Before it runs provides a shell, the script mounts api filesystems like /proc and setups the profile and /etc of the target system. To use it, setup <code>/mnt</code> as described in the [https://nixos.org/nixos/manual/#sec-installation installation manual].
 Then run <code>nixos-enter</code>:
@@ Line 41: / Line 53: @@
 You should now be in your NixOS system, and should be able to adjust it by e.g. editing <code>/etc/nixos/configuration.nix</code> and running <code>nixos-rebuild switch</code> as usual. Remember that you may have to establish Internet access within the chroot for some commands.

imported>Mvirts: Added

2022-10-11T15:54:55Z

Added

← Older revision		Revision as of 15:54, 11 October 2022
Line 40:		Line 40:
	</syntaxHighlight>		</syntaxHighlight>

	You should now be in your NixOS system, and should be able to adjust it by e.g. editing <code>/etc/nixos/configuration.nix</code> and running <code>nixos-rebuild switch</code> as usual. Remember that you may have to establish Internet access the chroot for some commands.		You should now be in your NixOS system, and should be able to adjust it by e.g. editing <code>/etc/nixos/configuration.nix</code> and running <code>nixos-rebuild switch</code> as usual. Remember that you may have to establish Internet access within the chroot for some commands.

imported>Ahoneybun at 14:09, 6 June 2022

2022-06-06T14:09:31Z

← Older revision		Revision as of 14:09, 6 June 2022
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	mount -o bind /proc /mnt/proc		mount -o bind /proc /mnt/proc
	mount -o bind /sys /mnt/sys		mount -o bind /sys /mnt/sys
	~~mount -o bind /run /mnt/run~~
	chroot /mnt /nix/var/nix/profiles/system/activate		chroot /mnt /nix/var/nix/profiles/system/activate
	chroot /mnt /run/current-system/sw/bin/bash		chroot /mnt /run/current-system/sw/bin/bash

imported>Ahoneybun: Adds the mount command for /run from the host OS so that rebuild command works.

2022-05-20T17:32:12Z

Adds the mount command for /run from the host OS so that rebuild command works.

← Older revision		Revision as of 17:32, 20 May 2022
Line 36:		Line 36:
	mount -o bind /proc /mnt/proc		mount -o bind /proc /mnt/proc
	mount -o bind /sys /mnt/sys		mount -o bind /sys /mnt/sys
			mount -o bind /run /mnt/run
	chroot /mnt /nix/var/nix/profiles/system/activate		chroot /mnt /nix/var/nix/profiles/system/activate
	chroot /mnt /run/current-system/sw/bin/bash		chroot /mnt /run/current-system/sw/bin/bash

imported>Deepfire: Added `--option sandbox false` to the `nixos-enter` section.

2021-05-16T12:47:27Z

Added `--option sandbox false` to the `nixos-enter` section.

← Older revision		Revision as of 12:47, 16 May 2021
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	<syntaxHighlight lang=console>		<syntaxHighlight lang=console>
	$ nixos-enter		$ nixos-enter
			</syntaxHighlight>

			Note, that when using <code>nixos-rebuild</code> inside the environment provided by <code>nixos-enter</code>, you have to give <code>nixos-rebuild</code> subcommands the <code>--option sandbox false</code> option, otherwise derivation builds will fail with the following error:

			<syntaxHighlight lang=console>
			error: cloning builder process: Operation not permitted
			error: unable to start build process
	</syntaxHighlight>		</syntaxHighlight>

imported>Nh2: Show manual chroot

2019-12-05T00:36:48Z

Show manual chroot

@@ Line 1: / Line 1: @@
 [https://en.wikipedia.org/wiki/Chroot Chroot] is an operation that changes the apparent root directory for the current running process and their children. A program that is run in such a modified environment cannot access files and commands outside that environmental directory tree. This modified environment is called a chroot jail.
-= Usage =
+= Using nixos-enter =
-nixos-enter allows to access a nixos installation from a rescue system.
+nixos-enter allows to access a NixOS installation from a NixOS rescue system.
-== Using nixos-enter ==
+The nixos-enter program is part of NixOS. Before it runs provides a shell, the script mounts api filesystems like /proc and setups the profile and /etc of the target system. To use it, setup <code>/mnt</code> as described in the [https://nixos.org/nixos/manual/#sec-installation installation manual].
 Then run <code>nixos-enter</code>:
@@ Line 14: / Line 12: @@
 $ nixos-enter
 </syntaxHighlight>

imported>Mic92 at 11:40, 5 April 2018

2018-04-05T11:40:26Z

← Older revision		Revision as of 11:40, 5 April 2018
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	Then run <code>nixos-enter</code>:		Then run <code>nixos-enter</code>:

	<syntaxHighlight ~~syntax~~=console>		<syntaxHighlight lang=console>
	$ nixos-enter		$ nixos-enter
	</syntaxHighlight>		</syntaxHighlight>

imported>Mic92: example for nixos-enter

2018-04-05T11:40:07Z

example for nixos-enter

New page

[https://en.wikipedia.org/wiki/Chroot Chroot] is an operation that changes the apparent root directory for the current running process and their children. A program that is run in such a modified environment cannot access files and commands outside that environmental directory tree. This modified environment is called a chroot jail.

= Usage =

nixos-enter allows to access a nixos installation from a rescue system.

== Using nixos-enter ==

The nixos-enter program is part of nixos. Before it runs provides a shell, the script mounts api filesystems like /proc and setups the profile and /etc of the target system. To use it, setup <code>/mnt</code> as described in the [https://nixos.org/nixos/manual/#sec-installation installation manual].

Then run <code>nixos-enter</code>:

<syntaxHighlight syntax=console>
$ nixos-enter
</syntaxHighlight>