mirror of
https://github.com/NixOS/nixpkgs.git
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845ae983f6
UEFI iso image for i686 didn't boot because the default boot file was incorrectly named bootx32.efi. The correct name is bootia32.efi.
636 lines
22 KiB
Nix
636 lines
22 KiB
Nix
# This module creates a bootable ISO image containing the given NixOS
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# configuration. The derivation for the ISO image will be placed in
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# config.system.build.isoImage.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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/**
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* Given a list of `options`, concats the result of mapping each options
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* to a menuentry for use in grub.
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*
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* * defaults: {name, image, params, initrd}
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* * options: [ option... ]
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* * option: {name, params, class}
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*/
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menuBuilderGrub2 =
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defaults: options: lib.concatStrings
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(
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map
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(option: ''
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menuentry '${defaults.name} ${
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# Name appended to menuentry defaults to params if no specific name given.
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option.name or (if option ? params then "(${option.params})" else "")
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}' ${if option ? class then " --class ${option.class}" else ""} {
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linux ${defaults.image} ${defaults.params} ${
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option.params or ""
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}
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initrd ${defaults.initrd}
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}
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'')
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options
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)
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;
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/**
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* Given a `config`, builds the default options.
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*/
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buildMenuGrub2 = config:
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buildMenuAdditionalParamsGrub2 config ""
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;
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/**
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* Given a `config` and params to add to `params`, build a set of default options.
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* Use this one when creating a variant (e.g. hidpi)
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*/
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buildMenuAdditionalParamsGrub2 = config: additional:
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let
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finalCfg = {
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name = "NixOS ${config.system.nixos.label}${config.isoImage.appendToMenuLabel}";
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params = "init=${config.system.build.toplevel}/init ${additional} ${toString config.boot.kernelParams}";
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image = "/boot/bzImage";
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initrd = "/boot/initrd";
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};
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in
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menuBuilderGrub2
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finalCfg
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[
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{ class = "installer"; }
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{ class = "nomodeset"; params = "nomodeset"; }
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{ class = "copytoram"; params = "copytoram"; }
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{ class = "debug"; params = "debug"; }
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]
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;
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# Timeout in syslinux is in units of 1/10 of a second.
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# 0 is used to disable timeouts.
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syslinuxTimeout = if config.boot.loader.timeout == null then
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0
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else
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max (config.boot.loader.timeout * 10) 1;
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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:
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# * Do not use '/syslinux/syslinux.cfg' as the path for this
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# configuration. UNetbootin will not parse the file and use it as-is.
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# This results in a broken configuration if the partition label does
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# not match the specified config.isoImage.volumeID. For this reason
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# we're using '/isolinux/isolinux.cfg'.
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# * Use APPEND instead of adding command-line arguments directly after
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# the LINUX entries.
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# * COM32 entries (chainload, reboot, poweroff) are not recognized. They
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# result in incorrect boot entries.
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baseIsolinuxCfg = ''
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SERIAL 0 38400
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TIMEOUT ${builtins.toString syslinuxTimeout}
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UI vesamenu.c32
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MENU TITLE NixOS
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MENU BACKGROUND /isolinux/background.png
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MENU RESOLUTION 800 600
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MENU CLEAR
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MENU ROWS 6
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MENU CMDLINEROW -4
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MENU TIMEOUTROW -3
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MENU TABMSGROW -2
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MENU HELPMSGROW -1
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MENU HELPMSGENDROW -1
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MENU MARGIN 0
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# FG:AARRGGBB BG:AARRGGBB shadow
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MENU COLOR BORDER 30;44 #00000000 #00000000 none
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MENU COLOR SCREEN 37;40 #FF000000 #00E2E8FF none
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MENU COLOR TABMSG 31;40 #80000000 #00000000 none
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MENU COLOR TIMEOUT 1;37;40 #FF000000 #00000000 none
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MENU COLOR TIMEOUT_MSG 37;40 #FF000000 #00000000 none
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MENU COLOR CMDMARK 1;36;40 #FF000000 #00000000 none
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MENU COLOR CMDLINE 37;40 #FF000000 #00000000 none
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MENU COLOR TITLE 1;36;44 #00000000 #00000000 none
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MENU COLOR UNSEL 37;44 #FF000000 #00000000 none
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MENU COLOR SEL 7;37;40 #FFFFFFFF #FF5277C3 std
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DEFAULT boot
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LABEL boot
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MENU LABEL NixOS ${config.system.nixos.label}${config.isoImage.appendToMenuLabel}
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LINUX /boot/${config.system.boot.loader.kernelFile}
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APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}
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INITRD /boot/${config.system.boot.loader.initrdFile}
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# A variant to boot with 'nomodeset'
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LABEL boot-nomodeset
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MENU LABEL NixOS ${config.system.nixos.label}${config.isoImage.appendToMenuLabel} (nomodeset)
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LINUX /boot/${config.system.boot.loader.kernelFile}
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APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset
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INITRD /boot/${config.system.boot.loader.initrdFile}
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# A variant to boot with 'copytoram'
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LABEL boot-copytoram
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MENU LABEL NixOS ${config.system.nixos.label}${config.isoImage.appendToMenuLabel} (copytoram)
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LINUX /boot/${config.system.boot.loader.kernelFile}
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APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram
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INITRD /boot/${config.system.boot.loader.initrdFile}
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# A variant to boot with verbose logging to the console
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LABEL boot-debug
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MENU LABEL NixOS ${config.system.nixos.label}${config.isoImage.appendToMenuLabel} (debug)
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LINUX /boot/${config.system.boot.loader.kernelFile}
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APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} loglevel=7
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INITRD /boot/${config.system.boot.loader.initrdFile}
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'';
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isolinuxMemtest86Entry = ''
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LABEL memtest
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MENU LABEL Memtest86+
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LINUX /boot/memtest.bin
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APPEND ${toString config.boot.loader.grub.memtest86.params}
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'';
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isolinuxCfg = concatStringsSep "\n"
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([ baseIsolinuxCfg ] ++ optional config.boot.loader.grub.memtest86.enable isolinuxMemtest86Entry);
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# Setup instructions for rEFInd.
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refind =
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if targetArch == "x64" then
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''
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# Adds rEFInd to the ISO.
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cp -v ${pkgs.refind}/share/refind/refind_x64.efi $out/EFI/boot/
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''
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else
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"# No refind for ia32"
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;
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grubMenuCfg = ''
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#
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# Menu configuration
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#
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insmod gfxterm
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insmod png
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set gfxpayload=keep
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# Fonts can be loaded?
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# (This font is assumed to always be provided as a fallback by NixOS)
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if loadfont (hd0)/EFI/boot/unicode.pf2; then
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# Use graphical term, it can be either with background image or a theme.
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# input is "console", while output is "gfxterm".
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# This enables "serial" input and output only when possible.
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# Otherwise the failure mode is to not even enable gfxterm.
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if test "\$with_serial" == "yes"; then
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terminal_output gfxterm serial
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terminal_input console serial
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else
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terminal_output gfxterm
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terminal_input console
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fi
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else
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# Sets colors for the non-graphical term.
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set menu_color_normal=cyan/blue
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set menu_color_highlight=white/blue
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fi
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${ # When there is a theme configured, use it, otherwise use the background image.
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if (!isNull config.isoImage.grubTheme) then ''
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# Sets theme.
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set theme=(hd0)/EFI/boot/grub-theme/theme.txt
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# Load theme fonts
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$(find ${config.isoImage.grubTheme} -iname '*.pf2' -printf "loadfont (hd0)/EFI/boot/grub-theme/%P\n")
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'' else ''
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if background_image (hd0)/EFI/boot/efi-background.png; then
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# Black background means transparent background when there
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# is a background image set... This seems undocumented :(
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set color_normal=black/black
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set color_highlight=white/blue
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else
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# Falls back again to proper colors.
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set menu_color_normal=cyan/blue
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set menu_color_highlight=white/blue
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fi
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''}
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'';
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# The EFI boot image.
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# Notes about grub:
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# * Yes, the grubMenuCfg has to be repeated in all submenus. Otherwise you
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# will get white-on-black console-like text on sub-menus. *sigh*
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efiDir = pkgs.runCommand "efi-directory" {} ''
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mkdir -p $out/EFI/boot/
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MODULES="fat iso9660 part_gpt part_msdos \
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normal boot linux configfile loopback chain halt \
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efifwsetup efi_gop efi_uga \
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ls search search_label search_fs_uuid search_fs_file \
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gfxmenu gfxterm gfxterm_background gfxterm_menu test all_video loadenv \
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exfat ext2 ntfs btrfs hfsplus udf \
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videoinfo png \
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echo serial \
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"
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# Make our own efi program, we can't rely on "grub-install" since it seems to
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# probe for devices, even with --skip-fs-probe.
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${pkgs.grub2_efi}/bin/grub-mkimage -o $out/EFI/boot/${if targetArch == "x64" then "bootx64" else "bootia32"}.efi -p /EFI/boot -O ${if targetArch == "x64" then "x86_64" else "i386"}-efi \
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$MODULES
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cp ${pkgs.grub2_efi}/share/grub/unicode.pf2 $out/EFI/boot/
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cat <<EOF > $out/EFI/boot/grub.cfg
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# If you want to use serial for "terminal_*" commands, you need to set one up:
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# Example manual configuration:
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# → serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
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# This uses the defaults, and makes the serial terminal available.
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set with_serial=no
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if serial; then set with_serial=yes ;fi
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export with_serial
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clear
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set timeout=10
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${grubMenuCfg}
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#
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# Menu entries
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#
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${buildMenuGrub2 config}
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submenu "HiDPI, Quirks and Accessibility" --class hidpi --class submenu {
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${grubMenuCfg}
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submenu "Suggests resolution @720p" --class hidpi-720p {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "video=1280x720@60"}
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}
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submenu "Suggests resolution @1080p" --class hidpi-1080p {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "video=1920x1080@60"}
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}
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# Some laptop and convertibles have the panel installed in an
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# inconvenient way, rotated away from the keyboard.
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# Those entries makes it easier to use the installer.
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submenu "" {return}
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submenu "Rotate framebuffer Clockwise" --class rotate-90cw {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "fbcon=rotate:1"}
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}
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submenu "Rotate framebuffer Upside-Down" --class rotate-180 {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "fbcon=rotate:2"}
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}
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submenu "Rotate framebuffer Counter-Clockwise" --class rotate-90ccw {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "fbcon=rotate:3"}
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}
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# As a proof of concept, mainly. (Not sure it has accessibility merits.)
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submenu "" {return}
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submenu "Use black on white" --class accessibility-blakconwhite {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "vt.default_red=0xFF,0xBC,0x4F,0xB4,0x56,0xBC,0x4F,0x00,0xA1,0xCF,0x84,0xCA,0x8D,0xB4,0x84,0x68 vt.default_grn=0xFF,0x55,0xBA,0xBA,0x4D,0x4D,0xB3,0x00,0xA0,0x8F,0xB3,0xCA,0x88,0x93,0xA4,0x68 vt.default_blu=0xFF,0x58,0x5F,0x58,0xC5,0xBD,0xC5,0x00,0xA8,0xBB,0xAB,0x97,0xBD,0xC7,0xC5,0x68"}
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}
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# Serial access is a must!
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submenu "" {return}
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submenu "Serial console=ttyS0,115200n8" --class serial {
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${grubMenuCfg}
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${buildMenuAdditionalParamsGrub2 config "console=ttyS0,115200n8"}
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}
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}
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menuentry 'rEFInd' --class refind {
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# UUID is hard-coded in the derivation.
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search --set=root --no-floppy --fs-uuid 1234-5678
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chainloader (\$root)/EFI/boot/refind_x64.efi
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}
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menuentry 'Firmware Setup' --class settings {
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fwsetup
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clear
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echo ""
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echo "If you see this message, your EFI system doesn't support this feature."
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echo ""
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}
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menuentry 'Shutdown' --class shutdown {
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halt
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}
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EOF
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${refind}
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'';
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efiImg = pkgs.runCommand "efi-image_eltorito" { buildInputs = [ pkgs.mtools pkgs.libfaketime ]; }
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# Be careful about determinism: du --apparent-size,
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# dates (cp -p, touch, mcopy -m, faketime for label), IDs (mkfs.vfat -i)
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''
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mkdir ./contents && cd ./contents
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cp -rp "${efiDir}"/* .
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mkdir ./boot
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cp -p "${config.boot.kernelPackages.kernel}/${config.system.boot.loader.kernelFile}" \
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"${config.system.build.initialRamdisk}/${config.system.boot.loader.initrdFile}" ./boot/
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touch --date=@0 ./*
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usage_size=$(du -sb --apparent-size . | tr -cd '[:digit:]')
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# Make the image 110% as big as the files need to make up for FAT overhead
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image_size=$(( ($usage_size * 110) / 100 ))
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# Make the image fit blocks of 1M
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block_size=$((1024*1024))
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image_size=$(( ($image_size / $block_size + 1) * $block_size ))
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echo "Usage size: $usage_size"
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echo "Image size: $image_size"
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truncate --size=$image_size "$out"
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${pkgs.libfaketime}/bin/faketime "2000-01-01 00:00:00" ${pkgs.dosfstools}/sbin/mkfs.vfat -i 12345678 -n EFIBOOT "$out"
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mcopy -bpsvm -i "$out" ./* ::
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''; # */
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targetArch = if pkgs.stdenv.isi686 then
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"ia32"
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else if pkgs.stdenv.isx86_64 then
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"x64"
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else
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throw "Unsupported architecture";
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in
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{
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options = {
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isoImage.isoName = mkOption {
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default = "${config.isoImage.isoBaseName}.iso";
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description = ''
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Name of the generated ISO image file.
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'';
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};
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isoImage.isoBaseName = mkOption {
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default = "nixos";
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description = ''
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Prefix of the name of the generated ISO image file.
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'';
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};
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isoImage.compressImage = mkOption {
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default = false;
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description = ''
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Whether the ISO image should be compressed using
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<command>bzip2</command>.
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'';
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};
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isoImage.volumeID = mkOption {
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default = "NIXOS_BOOT_CD";
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description = ''
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Specifies the label or volume ID of the generated ISO image.
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Note that the label is used by stage 1 of the boot process to
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mount the CD, so it should be reasonably distinctive.
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'';
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};
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isoImage.contents = mkOption {
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example = literalExample ''
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[ { source = pkgs.memtest86 + "/memtest.bin";
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target = "boot/memtest.bin";
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}
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]
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'';
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description = ''
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This option lists files to be copied to fixed locations in the
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generated ISO image.
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'';
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};
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isoImage.storeContents = mkOption {
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example = literalExample "[ pkgs.stdenv ]";
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description = ''
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This option lists additional derivations to be included in the
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Nix store in the generated ISO image.
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'';
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};
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isoImage.includeSystemBuildDependencies = mkOption {
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default = false;
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description = ''
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Set this option to include all the needed sources etc in the
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image. It significantly increases image size. Use that when
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you want to be able to keep all the sources needed to build your
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system or when you are going to install the system on a computer
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with slow or non-existent network connection.
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'';
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};
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isoImage.makeEfiBootable = mkOption {
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default = false;
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description = ''
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Whether the ISO image should be an efi-bootable volume.
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'';
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};
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isoImage.makeUsbBootable = mkOption {
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default = false;
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description = ''
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Whether the ISO image should be bootable from CD as well as USB.
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'';
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};
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isoImage.efiSplashImage = mkOption {
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default = pkgs.fetchurl {
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url = https://raw.githubusercontent.com/NixOS/nixos-artwork/a9e05d7deb38a8e005a2b52575a3f59a63a4dba0/bootloader/efi-background.png;
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sha256 = "18lfwmp8yq923322nlb9gxrh5qikj1wsk6g5qvdh31c4h5b1538x";
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};
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description = ''
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The splash image to use in the EFI bootloader.
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'';
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};
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isoImage.splashImage = mkOption {
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default = pkgs.fetchurl {
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url = https://raw.githubusercontent.com/NixOS/nixos-artwork/a9e05d7deb38a8e005a2b52575a3f59a63a4dba0/bootloader/isolinux/bios-boot.png;
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sha256 = "1wp822zrhbg4fgfbwkr7cbkr4labx477209agzc0hr6k62fr6rxd";
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};
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description = ''
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The splash image to use in the legacy-boot bootloader.
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'';
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};
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isoImage.grubTheme = mkOption {
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default = pkgs.nixos-grub2-theme;
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type = types.nullOr (types.either types.path types.package);
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description = ''
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The grub2 theme used for UEFI boot.
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'';
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};
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isoImage.appendToMenuLabel = mkOption {
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default = " Installer";
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example = " Live System";
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description = ''
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The string to append after the menu label for the NixOS system.
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This will be directly appended (without whitespace) to the NixOS version
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string, like for example if it is set to <literal>XXX</literal>:
|
||
|
||
<para><literal>NixOS 99.99-pre666XXX</literal></para>
|
||
'';
|
||
};
|
||
|
||
};
|
||
|
||
config = {
|
||
|
||
boot.loader.grub.version = 2;
|
||
|
||
# Don't build the GRUB menu builder script, since we don't need it
|
||
# here and it causes a cyclic dependency.
|
||
boot.loader.grub.enable = false;
|
||
|
||
# !!! Hack - attributes expected by other modules.
|
||
system.boot.loader.kernelFile = "bzImage";
|
||
environment.systemPackages = [ pkgs.grub2 pkgs.grub2_efi pkgs.syslinux ];
|
||
|
||
# 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=LABEL=${config.isoImage.volumeID}"
|
||
"boot.shell_on_fail"
|
||
];
|
||
|
||
fileSystems."/" =
|
||
{ fsType = "tmpfs";
|
||
options = [ "mode=0755" ];
|
||
};
|
||
|
||
# Note that /dev/root is a symlink to the actual root device
|
||
# specified on the kernel command line, created in the stage 1
|
||
# init script.
|
||
fileSystems."/iso" =
|
||
{ device = "/dev/root";
|
||
neededForBoot = true;
|
||
noCheck = true;
|
||
};
|
||
|
||
# In stage 1, mount a tmpfs on top of /nix/store (the squashfs
|
||
# image) to make this a live CD.
|
||
fileSystems."/nix/.ro-store" =
|
||
{ fsType = "squashfs";
|
||
device = "/iso/nix-store.squashfs";
|
||
options = [ "loop" ];
|
||
neededForBoot = true;
|
||
};
|
||
|
||
fileSystems."/nix/.rw-store" =
|
||
{ fsType = "tmpfs";
|
||
options = [ "mode=0755" ];
|
||
neededForBoot = true;
|
||
};
|
||
|
||
fileSystems."/nix/store" =
|
||
{ fsType = "unionfs-fuse";
|
||
device = "unionfs";
|
||
options = [ "allow_other" "cow" "nonempty" "chroot=/mnt-root" "max_files=32768" "hide_meta_files" "dirs=/nix/.rw-store=rw:/nix/.ro-store=ro" ];
|
||
};
|
||
|
||
boot.initrd.availableKernelModules = [ "squashfs" "iso9660" "uas" ];
|
||
|
||
boot.blacklistedKernelModules = [ "nouveau" ];
|
||
|
||
boot.initrd.kernelModules = [ "loop" ];
|
||
|
||
# Closures to be copied to the Nix store on the CD, namely the init
|
||
# script and the top-level system configuration directory.
|
||
isoImage.storeContents =
|
||
[ config.system.build.toplevel ] ++
|
||
optional config.isoImage.includeSystemBuildDependencies
|
||
config.system.build.toplevel.drvPath;
|
||
|
||
# Create the squashfs image that contains the Nix store.
|
||
system.build.squashfsStore = pkgs.callPackage ../../../lib/make-squashfs.nix {
|
||
storeContents = config.isoImage.storeContents;
|
||
};
|
||
|
||
# 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.boot.kernelPackages.kernel + "/" + config.system.boot.loader.kernelFile;
|
||
target = "/boot/" + config.system.boot.loader.kernelFile;
|
||
}
|
||
{ source = config.system.build.initialRamdisk + "/" + config.system.boot.loader.initrdFile;
|
||
target = "/boot/" + config.system.boot.loader.initrdFile;
|
||
}
|
||
{ source = config.system.build.squashfsStore;
|
||
target = "/nix-store.squashfs";
|
||
}
|
||
{ source = "${pkgs.syslinux}/share/syslinux";
|
||
target = "/isolinux";
|
||
}
|
||
{ source = config.isoImage.efiSplashImage;
|
||
target = "/EFI/boot/efi-background.png";
|
||
}
|
||
{ source = config.isoImage.splashImage;
|
||
target = "/isolinux/background.png";
|
||
}
|
||
{ source = pkgs.writeText "version" config.system.nixos.label;
|
||
target = "/version.txt";
|
||
}
|
||
] ++ optionals config.isoImage.makeEfiBootable [
|
||
{ source = efiImg;
|
||
target = "/boot/efi.img";
|
||
}
|
||
{ source = "${efiDir}/EFI";
|
||
target = "/EFI";
|
||
}
|
||
] ++ optionals config.boot.loader.grub.memtest86.enable [
|
||
{ source = "${pkgs.memtest86plus}/memtest.bin";
|
||
target = "/boot/memtest.bin";
|
||
}
|
||
] ++ optionals (!isNull config.isoImage.grubTheme) [
|
||
{ source = config.isoImage.grubTheme;
|
||
target = "/EFI/boot/grub-theme";
|
||
}
|
||
];
|
||
|
||
boot.loader.timeout = 10;
|
||
|
||
# Create the ISO image.
|
||
system.build.isoImage = pkgs.callPackage ../../../lib/make-iso9660-image.nix ({
|
||
inherit (config.isoImage) isoName compressImage volumeID contents;
|
||
bootable = true;
|
||
bootImage = "/isolinux/isolinux.bin";
|
||
} // optionalAttrs config.isoImage.makeUsbBootable {
|
||
usbBootable = true;
|
||
isohybridMbrImage = "${pkgs.syslinux}/share/syslinux/isohdpfx.bin";
|
||
} // optionalAttrs config.isoImage.makeEfiBootable {
|
||
efiBootable = true;
|
||
efiBootImage = "boot/efi.img";
|
||
});
|
||
|
||
boot.postBootCommands =
|
||
''
|
||
# After booting, register the contents of the Nix store on the
|
||
# CD in the Nix database in the tmpfs.
|
||
${config.nix.package.out}/bin/nix-store --load-db < /nix/store/nix-path-registration
|
||
|
||
# nixos-rebuild also requires a "system" profile and an
|
||
# /etc/NIXOS tag.
|
||
touch /etc/NIXOS
|
||
${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/system --set /run/current-system
|
||
'';
|
||
|
||
# Add vfat support to the initrd to enable people to copy the
|
||
# contents of the CD to a bootable USB stick.
|
||
boot.initrd.supportedFilesystems = [ "vfat" ];
|
||
|
||
};
|
||
|
||
}
|