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Diffstat (limited to 'nixos/doc/manual/administration/rollback.xml')
| -rw-r--r-- | nixos/doc/manual/administration/rollback.xml | 53 |
1 files changed, 23 insertions, 30 deletions
diff --git a/nixos/doc/manual/administration/rollback.xml b/nixos/doc/manual/administration/rollback.xml index ae621f33de2c..07c6acaa469c 100644 --- a/nixos/doc/manual/administration/rollback.xml +++ b/nixos/doc/manual/administration/rollback.xml @@ -3,46 +3,39 @@ xmlns:xi="http://www.w3.org/2001/XInclude" version="5.0" xml:id="sec-rollback"> - -<title>Rolling Back Configuration Changes</title> - -<para>After running <command>nixos-rebuild</command> to switch to a -new configuration, you may find that the new configuration doesn’t -work very well. In that case, there are several ways to return to a -previous configuration.</para> - -<para>First, the GRUB boot manager allows you to boot into any -previous configuration that hasn’t been garbage-collected. These -configurations can be found under the GRUB submenu “NixOS - All -configurations”. This is especially useful if the new configuration -fails to boot. After the system has booted, you can make the selected -configuration the default for subsequent boots: - + <title>Rolling Back Configuration Changes</title> + + <para> + After running <command>nixos-rebuild</command> to switch to a new + configuration, you may find that the new configuration doesn’t work very + well. In that case, there are several ways to return to a previous + configuration. + </para> + + <para> + First, the GRUB boot manager allows you to boot into any previous + configuration that hasn’t been garbage-collected. These configurations can + be found under the GRUB submenu “NixOS - All configurations”. This is + especially useful if the new configuration fails to boot. After the system + has booted, you can make the selected configuration the default for + subsequent boots: <screen> # /run/current-system/bin/switch-to-configuration boot</screen> + </para> -</para> - -<para>Second, you can switch to the previous configuration in a running -system: - + <para> + Second, you can switch to the previous configuration in a running system: <screen> # nixos-rebuild switch --rollback</screen> - -This is equivalent to running: - + This is equivalent to running: <screen> # /nix/var/nix/profiles/system-<replaceable>N</replaceable>-link/bin/switch-to-configuration switch</screen> - -where <replaceable>N</replaceable> is the number of the NixOS system -configuration. To get a list of the available configurations, do: - + where <replaceable>N</replaceable> is the number of the NixOS system + configuration. To get a list of the available configurations, do: <screen> $ ls -l /nix/var/nix/profiles/system-*-link <replaceable>...</replaceable> lrwxrwxrwx 1 root root 78 Aug 12 13:54 /nix/var/nix/profiles/system-268-link -> /nix/store/202b...-nixos-13.07pre4932_5a676e4-4be1055 </screen> - -</para> - + </para> </section> |