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nixpkgs/test/system-configuration.sh

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* The installer now installs a configuration on the target device that boots into stage 1 (kernel+initrd) succesfully. `system-configuration.nix' contains the definition of the configuration to be installed. The attribute systemConfiguration is installed into the profile /nix/var/nix/profiles/system. Then the program /nix/var/nix/profiles/system/bin/switch-to-configuration is called to finalise the installation. This program (generated by system-configuration.sh) installs Grub on the drive with a menu that contains the entry for the desired kernel and initrd. In principle this allows us to do rollbacks to previous system configurations by doing `nix-env --rollback' and then calling switch-to-configuration to update Grub. Ideally this should be done in a single command (and we should consider the obvious risk of garbage collecting the current kernel etc. to which the current Grub menu points...). Maybe the responsibility for generating the Grub menu should be placed somewhere else. For instance, we could generate a Grub menu automatically out of all the generations in the `system' profile. svn path=/nixu/trunk/; revision=7009
2006-11-12 23:30:03 +00:00
source $stdenv/setup
ensureDir $out
ln -s $kernel $out/kernel
ln -s $grub $out/grub
cat > $out/menu.lst << GRUBEND
* Pass the path of the stage 2 init script to stage 1 init through the kernel command line, instead of having a /init symlink. This allows us to switch between configurations. * Some debug support: adding `debug' to the kernel command line gives a stage 1 shell. svn path=/nixu/trunk/; revision=7107
2006-11-24 00:04:29 +00:00
kernel $kernel selinux=0 apm=on acpi=on init=$bootStage2
initrd $initrd
* The installer now installs a configuration on the target device that boots into stage 1 (kernel+initrd) succesfully. `system-configuration.nix' contains the definition of the configuration to be installed. The attribute systemConfiguration is installed into the profile /nix/var/nix/profiles/system. Then the program /nix/var/nix/profiles/system/bin/switch-to-configuration is called to finalise the installation. This program (generated by system-configuration.sh) installs Grub on the drive with a menu that contains the entry for the desired kernel and initrd. In principle this allows us to do rollbacks to previous system configurations by doing `nix-env --rollback' and then calling switch-to-configuration to update Grub. Ideally this should be done in a single command (and we should consider the obvious risk of garbage collecting the current kernel etc. to which the current Grub menu points...). Maybe the responsibility for generating the Grub menu should be placed somewhere else. For instance, we could generate a Grub menu automatically out of all the generations in the `system' profile. svn path=/nixu/trunk/; revision=7009
2006-11-12 23:30:03 +00:00
GRUBEND
ensureDir $out/bin
cat > $out/bin/switch-to-configuration <<EOF
#! $SHELL
set -e
export PATH=$coreutils/bin:$gnused/bin:$gnugrep/bin:$diffutils/bin
if test -n "$grubDevice"; then
* Generate a Grub boot menu that contains all generations of the system profile. svn path=/nixu/trunk/; revision=7105
2006-11-23 23:22:43 +00:00
$grubMenuBuilder $out
* The installer now installs a configuration on the target device that boots into stage 1 (kernel+initrd) succesfully. `system-configuration.nix' contains the definition of the configuration to be installed. The attribute systemConfiguration is installed into the profile /nix/var/nix/profiles/system. Then the program /nix/var/nix/profiles/system/bin/switch-to-configuration is called to finalise the installation. This program (generated by system-configuration.sh) installs Grub on the drive with a menu that contains the entry for the desired kernel and initrd. In principle this allows us to do rollbacks to previous system configurations by doing `nix-env --rollback' and then calling switch-to-configuration to update Grub. Ideally this should be done in a single command (and we should consider the obvious risk of garbage collecting the current kernel etc. to which the current Grub menu points...). Maybe the responsibility for generating the Grub menu should be placed somewhere else. For instance, we could generate a Grub menu automatically out of all the generations in the `system' profile. svn path=/nixu/trunk/; revision=7009
2006-11-12 23:30:03 +00:00
$grub/sbin/grub-install "$grubDevice" --no-floppy --recheck
fi
EOF
chmod +x $out/bin/switch-to-configuration
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