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* Provide a /etc/nixos/configuration.nix in the booted CD to make

Browse Source 
nixos-rebuild work.  This makes it a true live CD.

svn path=/nixos/branches/modular-nixos/; revision=15922
This commit is contained in:
Eelco Dolstra 2009-06-10 12:34:58 +00:00
parent 56922fa5b1
commit 463cf8efdd
2 changed files with 36 additions and 2 deletions
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37
modules/installer/cd-dvd/installation-cd.nix
View File

@ -33,6 +33,27 @@ let
# Put Nixpkgs in a tarball.
nixpkgsTarball = makeTarball "nixpkgs.tar.bz2" (pkgs.lib.cleanSource pkgs.path);
# A dummy /etc/nixos/configuration.nix in the booted CD that
# rebuilds the CD's configuration (and allows the configuration to
# be modified, of course, providing a true live CD). Problem is
# that we don't really know how the CD was built - the Nix
# expression language doesn't allow us to query the expression being
# evaluated. So we'll just hope for the best.
dummyConfiguration = pkgs.writeText "configuration.nix"
''
{config, pkgs, ...}:
{
require = [./nixos/modules/installer/cd-dvd/installation-cd.nix];
# Add your own options below and run "nixos-rebuild switch".
# E.g.,
# services.sshd.enable = true;
}
'';
in
{
@ -54,6 +75,7 @@ in
# Don't include X libraries.
services.sshd.forwardX11 = false;
fonts.enableFontConfig = false;
fonts.enableCoreFonts = false;
# Show the manual.
services.showManual.enable = true;
@ -128,20 +150,31 @@ in
# installation.
installer.nixpkgsURL = http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable;
# Provide the NixOS/Nixpkgs sources in /etc/nixos. This is required
# for nixos-install.
boot.postBootCommands =
''
export PATH=${pkgs.gnutar}/bin:${pkgs.bzip2}/bin:$PATH
# Provide a mount point for nixos-install.
mkdir -p /mnt
# Provide the NixOS/Nixpkgs sources in /etc/nixos. This is required
# for nixos-install.
echo "unpacking the NixOS/Nixpkgs sources..."
mkdir -p /etc/nixos/nixos
tar xjf ${nixosTarball}/nixos.tar.bz2 -C /etc/nixos/nixos
mkdir -p /etc/nixos/nixpkgs
tar xjf ${nixpkgsTarball}/nixpkgs.tar.bz2 -C /etc/nixos/nixpkgs
chown -R root.root /etc/nixos
# Provide a configuration for the CD/DVD itself, to allow users
# to run nixos-rebuild to change the configuration of the
# running system on the CD/DVD.
cp ${dummyConfiguration} /etc/nixos/configuration.nix
# nixos-rebuild also requires a "system" profile and an
# /etc/NIXOS tag.
touch /etc/NIXOS
${config.environment.nix}/bin/nix-env -p /nix/var/nix/profiles/system --set /var/run/current-system
'';
# Some more help text.

1
modules/services/misc/rogue.nix
View File

@ -41,6 +41,7 @@ pkgs.lib.mkIf cfg.enable {
start on udev
stop on shutdown
respawn ${pkgs.rogue}/bin/rogue < /dev/tty${toString cfg.ttyNumber} > /dev/tty${toString cfg.ttyNumber} 2>&1
'';
};