liminix

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service.nix (1019B)

      1 {
      2   liminix,
      3   lib,
      4   zyxel-bootconfig,
      5 }:
      6 {
      7   ensureActiveImage,
      8   primaryMtdPartition,
      9   secondaryMtdPartition,
     10   bootConfigurationMtdPartition,
     11   kernelCommandLineSource,
     12 }:
     13 let
     14   inherit (liminix.services) oneshot;
     15   activeImageIndex = if ensureActiveImage == "primary" then 0 else 1;
     16 in
     17 oneshot {
     18   name = "zyxel-boot-configure";
     19   up = ''
     20     set -- $(cat /proc/device-tree/chosen/bootargs)
     21     for x in "$@"; do
     22         case "$x" in
     23             bootImage=*)
     24             BOOT_IMAGE="''${x#bootImage=}"
     25             echo "Current boot image is $BOOT_IMAGE."
     26             ;;
     27         esac
     28     done
     29 
     30     if test -z "$BOOT_IMAGE"; then
     31       echo "No valid image was provided in the kernel command line."
     32       exit 1
     33     else
     34       ${lib.getExe zyxel-bootconfig} ${bootConfigurationMtdPartition} set-image-status "$BOOT_IMAGE" valid
     35       ${lib.getExe zyxel-bootconfig} ${bootConfigurationMtdPartition} set-active-image ${toString activeImageIndex}
     36 
     37       echo "Active image is now ${ensureActiveImage}"
     38     fi
     39   '';
     40 }