diff options
author | lassulus <lassulus@lassul.us> | 2019-09-21 17:08:00 +0200 |
---|---|---|
committer | Lassulus <github@lassul.us> | 2019-10-04 23:24:52 +0200 |
commit | 9d04a64a8fb56d46293db91d0afa35d60e09e8ba (patch) | |
tree | 062e5d6a684823f491413335cf5b1869e8f2e185 /nixos | |
parent | 54393d25d809af6be6b7d6e139d537e4d58297b0 (diff) |
iso-image: add loopback.cfg support to boot iso from grub
Diffstat (limited to 'nixos')
-rw-r--r-- | nixos/modules/installer/cd-dvd/iso-image.nix | 11 | ||||
-rw-r--r-- | nixos/modules/system/boot/stage-1-init.sh | 27 |
2 files changed, 37 insertions, 1 deletions
diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix index 93c8ebaa2496d..6595d0f30f9e8 100644 --- a/nixos/modules/installer/cd-dvd/iso-image.nix +++ b/nixos/modules/installer/cd-dvd/iso-image.nix @@ -24,7 +24,7 @@ let # Name appended to menuentry defaults to params if no specific name given. option.name or (if option ? params then "(${option.params})" else "") }' ${if option ? class then " --class ${option.class}" else ""} { - linux ${defaults.image} ${defaults.params} ${ + linux ${defaults.image} \''${isoboot} ${defaults.params} ${ option.params or "" } initrd ${defaults.initrd} @@ -268,6 +268,12 @@ let set timeout=10 ${grubMenuCfg} + # If the parameter iso_path is set, append the findiso parameter to the kernel + # line. We need this to allow the nixos iso to be booted from grub directly. + if [ \''${iso_path} ] ; then + set isoboot="findiso=\''${iso_path}" + fi + # # Menu entries # @@ -616,6 +622,9 @@ in { source = "${efiDir}/EFI"; target = "/EFI"; } + { source = pkgs.writeText "loopback.cfg" "source /EFI/boot/grub.cfg"; + target = "/boot/grub/loopback.cfg"; + } ] ++ optionals (config.boot.loader.grub.memtest86.enable && canx86BiosBoot) [ { source = "${pkgs.memtest86plus}/memtest.bin"; target = "/boot/memtest.bin"; diff --git a/nixos/modules/system/boot/stage-1-init.sh b/nixos/modules/system/boot/stage-1-init.sh index b817a45deba35..f520bf54ad1bd 100644 --- a/nixos/modules/system/boot/stage-1-init.sh +++ b/nixos/modules/system/boot/stage-1-init.sh @@ -183,6 +183,12 @@ for o in $(cat /proc/cmdline); do copytoram) copytoram=1 ;; + findiso=*) + # if an iso name is supplied, try to find the device where + # the iso resides on + set -- $(IFS==; echo $o) + isoPath=$2 + ;; esac done @@ -442,6 +448,27 @@ if test -e /sys/power/resume -a -e /sys/power/disk; then fi fi +# If we have a path to an iso file, find the iso and link it to /dev/root +if [ -n "$isoPath" ]; then + mkdir -p /findiso + + for delay in 5 10; do + blkid | while read -r line; do + device=$(echo "$line" | sed 's/:.*//') + type=$(echo "$line" | sed 's/.*TYPE="\([^"]*\)".*/\1/') + + mount -t "$type" "$device" /findiso + if [ -e "/findiso$isoPath" ]; then + ln -sf "/findiso$isoPath" /dev/root + break 2 + else + umount /findiso + fi + done + + sleep "$delay" + done +fi # Try to find and mount the root device. mkdir -p $targetRoot |