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author | Bobby Rong <rjl931189261@126.com> | 2021-07-02 10:47:32 +0800 |
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committer | Bobby Rong <rjl931189261@126.com> | 2021-07-02 10:47:32 +0800 |
commit | 99493b61ea5dc657a3febc6291bc83802005ad89 (patch) | |
tree | eabc95dd86a4a3438aa54e86c79eed60687c584c /nixos | |
parent | b5215f3f73a7b4f6780c7215dade87513322cd5a (diff) | |
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nixos: nixos/doc/manual/administration/rollback.xml to CommonMark
Diffstat (limited to 'nixos')
4 files changed, 81 insertions, 42 deletions
diff --git a/nixos/doc/manual/administration/rollback.section.md b/nixos/doc/manual/administration/rollback.section.md new file mode 100644 index 00000000000..290d685a2a1 --- /dev/null +++ b/nixos/doc/manual/administration/rollback.section.md @@ -0,0 +1,38 @@ +# Rolling Back Configuration Changes {#sec-rollback} + +After running `nixos-rebuild` 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. + +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: + +```ShellSession +# /run/current-system/bin/switch-to-configuration boot +``` + +Second, you can switch to the previous configuration in a running +system: + +```ShellSession +# nixos-rebuild switch --rollback +``` + +This is equivalent to running: + +```ShellSession +# /nix/var/nix/profiles/system-N-link/bin/switch-to-configuration switch +``` + +where `N` is the number of the NixOS system configuration. To get a +list of the available configurations, do: + +```ShellSession +$ ls -l /nix/var/nix/profiles/system-*-link +... +lrwxrwxrwx 1 root root 78 Aug 12 13:54 /nix/var/nix/profiles/system-268-link -> /nix/store/202b...-nixos-13.07pre4932_5a676e4-4be1055 +``` diff --git a/nixos/doc/manual/administration/rollback.xml b/nixos/doc/manual/administration/rollback.xml deleted file mode 100644 index 80d79e1a53f..00000000000 --- a/nixos/doc/manual/administration/rollback.xml +++ /dev/null @@ -1,41 +0,0 @@ -<section xmlns="http://docbook.org/ns/docbook" - xmlns:xlink="http://www.w3.org/1999/xlink" - 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: -<screen> -<prompt># </prompt>/run/current-system/bin/switch-to-configuration boot</screen> - </para> - - <para> - Second, you can switch to the previous configuration in a running system: -<screen> -<prompt># </prompt>nixos-rebuild switch --rollback</screen> - This is equivalent to running: -<screen> -<prompt># </prompt>/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: -<screen> -<prompt>$ </prompt>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> -</section> diff --git a/nixos/doc/manual/administration/troubleshooting.xml b/nixos/doc/manual/administration/troubleshooting.xml index a7d73192221..16cf4f00b26 100644 --- a/nixos/doc/manual/administration/troubleshooting.xml +++ b/nixos/doc/manual/administration/troubleshooting.xml @@ -10,7 +10,7 @@ </para> <xi:include href="../from_md/administration/boot-problems.section.xml" /> <xi:include href="../from_md/administration/maintenance-mode.section.xml" /> - <xi:include href="rollback.xml" /> + <xi:include href="../from_md/administration/rollback.section.xml" /> <xi:include href="store-corruption.xml" /> <xi:include href="network-problems.xml" /> </chapter> diff --git a/nixos/doc/manual/from_md/administration/rollback.section.xml b/nixos/doc/manual/from_md/administration/rollback.section.xml new file mode 100644 index 00000000000..a8df053011c --- /dev/null +++ b/nixos/doc/manual/from_md/administration/rollback.section.xml @@ -0,0 +1,42 @@ +<section xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-rollback"> + <title>Rolling Back Configuration Changes</title> + <para> + After running <literal>nixos-rebuild</literal> 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 <quote>NixOS - + All configurations</quote>. 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: + </para> + <programlisting> +# /run/current-system/bin/switch-to-configuration boot +</programlisting> + <para> + Second, you can switch to the previous configuration in a running + system: + </para> + <programlisting> +# nixos-rebuild switch --rollback +</programlisting> + <para> + This is equivalent to running: + </para> + <programlisting> +# /nix/var/nix/profiles/system-N-link/bin/switch-to-configuration switch +</programlisting> + <para> + where <literal>N</literal> is the number of the NixOS system + configuration. To get a list of the available configurations, do: + </para> + <programlisting> +$ ls -l /nix/var/nix/profiles/system-*-link +... +lrwxrwxrwx 1 root root 78 Aug 12 13:54 /nix/var/nix/profiles/system-268-link -> /nix/store/202b...-nixos-13.07pre4932_5a676e4-4be1055 +</programlisting> +</section> |