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WIP for making NotOS work with VirtualBox
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,174 @@ | ||
| { config, lib, pkgs, ... }: | ||
|
|
||
| with lib; | ||
|
|
||
| let | ||
| max = x: y: if x > y then x else y; | ||
|
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||
| # The configuration file for syslinux. | ||
|
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||
| # Notes on syslinux configuration and UNetbootin compatiblity: | ||
| # * Do not use '/syslinux/syslinux.cfg' as the path for this | ||
| # configuration. UNetbootin will not parse the file and use it as-is. | ||
| # This results in a broken configuration if the partition label does | ||
| # not match the specified config.isoImage.volumeID. For this reason | ||
| # we're using '/isolinux/isolinux.cfg'. | ||
| # * Use APPEND instead of adding command-line arguments directly after | ||
| # the LINUX entries. | ||
| # * COM32 entries (chainload, reboot, poweroff) are not recognized. They | ||
| # result in incorrect boot entries. | ||
|
|
||
| baseIsolinuxCfg = '' | ||
| SERIAL 0 38400 | ||
| TIMEOUT 10 | ||
| UI vesamenu.c32 | ||
| MENU TITLE NotOS | ||
| MENU BACKGROUND /isolinux/background.png | ||
| DEFAULT boot | ||
| LABEL boot | ||
| MENU LABEL NotOS | ||
| LINUX /boot/kernel | ||
| APPEND ${toString config.boot.kernelParams} panic=-1 | ||
| INITRD /boot/initrd | ||
| ''; | ||
|
|
||
| isolinuxCfg = baseIsolinuxCfg; | ||
| targetArch = if pkgs.stdenv.isi686 then | ||
| "ia32" | ||
| else if pkgs.stdenv.isx86_64 then | ||
| "x64" | ||
| else | ||
| throw "Unsupported architecture"; | ||
|
|
||
| in | ||
|
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| { | ||
| options = { | ||
|
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| isoImage.isoName = mkOption { | ||
| default = "${config.isoImage.isoBaseName}.iso"; | ||
| description = '' | ||
| Name of the generated ISO image file. | ||
| ''; | ||
| }; | ||
|
|
||
| isoImage.isoBaseName = mkOption { | ||
| default = "not-os"; | ||
| description = '' | ||
| Prefix of the name of the generated ISO image file. | ||
| ''; | ||
| }; | ||
|
|
||
| isoImage.compressImage = mkOption { | ||
| default = false; | ||
| description = '' | ||
| Whether the ISO image should be compressed using | ||
| <command>bzip2</command>. | ||
| ''; | ||
| }; | ||
|
|
||
| isoImage.volumeID = mkOption { | ||
| default = "NOTOS_BOOT_CD"; | ||
| description = '' | ||
| Specifies the label or volume ID of the generated ISO image. | ||
| Note that the label is used by stage 1 of the boot process to | ||
| mount the CD, so it should be reasonably distinctive. | ||
| ''; | ||
| }; | ||
|
|
||
| isoImage.contents = mkOption { | ||
| example = literalExample '' | ||
| [ { source = pkgs.memtest86 + "/memtest.bin"; | ||
| target = "boot/memtest.bin"; | ||
| } | ||
| ] | ||
| ''; | ||
| description = '' | ||
| This option lists files to be copied to fixed locations in the | ||
| generated ISO image. | ||
| ''; | ||
| }; | ||
|
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||
| isoImage.splashImage = mkOption { | ||
| default = pkgs.fetchurl { | ||
| url = https://raw.githubusercontent.com/NixOS/not-os-artwork/5729ab16c6a5793c10a2913b5a1b3f59b91c36ee/ideas/grub-splash/grub-not-os-1.png; | ||
| sha256 = "43fd8ad5decf6c23c87e9026170a13588c2eba249d9013cb9f888da5e2002217"; | ||
| }; | ||
| description = '' | ||
| The splash image to use in the bootloader. | ||
| ''; | ||
| }; | ||
| }; | ||
|
|
||
| config = { | ||
| # !!! Hack - attributes expected by other modules. | ||
| environment.systemPackages = [ ]; | ||
|
|
||
| # In stage 1 of the boot, mount the CD as the root FS by label so | ||
| # that we don't need to know its device. We pass the label of the | ||
| # root filesystem on the kernel command line, rather than in | ||
| # `fileSystems' below. This allows CD-to-USB converters such as | ||
| # UNetbootin to rewrite the kernel command line to pass the label or | ||
| # UUID of the USB stick. It would be nicer to write | ||
| # `root=/dev/disk/by-label/...' here, but UNetbootin doesn't | ||
| # recognise that. | ||
| boot.kernelParams = | ||
| [ "root=/cdrom/nix-store.squashfs" | ||
| # "root=LABEL=${config.isoImage.volumeID}" | ||
| # "boot.shell_on_fail" | ||
| ]; | ||
|
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||
| boot.initrd.availableKernelModules = []; | ||
|
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||
| boot.initrd.kernelModules = [ | ||
| "ata_piix" # PIIX for VirtualBox | ||
| "sr_mod" # CD Device Driver | ||
| "iso9660" # CD File System | ||
| "e1000" # Network Driver | ||
| "af_packet" # CONFIG_PACKET | ||
| ]; | ||
|
|
||
| not-os.preMount = '' | ||
| mkdir -p /cdrom | ||
| mount -t iso9660 /dev/sr0 /cdrom | ||
| ''; | ||
|
|
||
| # Individual files to be included on the CD, outside of the Nix | ||
| # store on the CD. | ||
| isoImage.contents = | ||
| [ { source = pkgs.substituteAll { | ||
| name = "isolinux.cfg"; | ||
| src = pkgs.writeText "isolinux.cfg-in" isolinuxCfg; | ||
| bootRoot = "/boot"; | ||
| }; | ||
| target = "/isolinux/isolinux.cfg"; | ||
| } | ||
| { source = "${config.system.build.kernel}/bzImage"; | ||
| target = "/boot/kernel"; | ||
| } | ||
| { source = "${config.system.build.initialRamdisk}/initrd"; | ||
| target = "/boot/initrd"; | ||
| } | ||
| { source = config.system.build.squashfs; | ||
| target = "/nix-store.squashfs"; | ||
| } | ||
| { source = "${pkgs.syslinux}/share/syslinux"; | ||
| target = "/isolinux"; | ||
| } | ||
| { source = config.isoImage.splashImage; | ||
| target = "/isolinux/background.png"; | ||
| } | ||
| { source = pkgs.writeText "version" "NotOS"; | ||
| target = "/version.txt"; | ||
| } | ||
| ]; | ||
|
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||
| # Create the ISO image. | ||
| system.build.isoImage = pkgs.callPackage (pkgs.path + "/nixos/lib/make-iso9660-image.nix") { | ||
| inherit (config.isoImage) isoName compressImage volumeID contents; | ||
| bootable = true; | ||
| bootImage = "/isolinux/isolinux.bin"; | ||
| }; | ||
| }; | ||
| } |
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