rmauer/netboot.nix
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use multiple initrds to reduce rebuilds

Browse Source
This commit is contained in:
Graham Christensen 2020-06-07 22:05:04 -04:00
parent 4bd4603382
commit 8441f4372d
No known key found for this signature in database
GPG Key ID: FE918C3A98C1030F
1 changed files with 21 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
quickly.nix
View File

@ -9,18 +9,6 @@ let
in in
{ {
options = {
netboot.storeContents = mkOption {
example = literalExample "[ pkgs.stdenv ]";
description = ''
This option lists additional derivations to be included in the
Nix store in the generated netboot image.
'';
};
};
config = { config = {
# Don't build the GRUB menu builder script, since we don't need it # Don't build the GRUB menu builder script, since we don't need it
# here and it causes a cyclic dependency. # here and it causes a cyclic dependency.
@ -77,31 +65,26 @@ in
boot.initrd.availableKernelModules = [ "squashfs" "overlay" ]; boot.initrd.availableKernelModules = [ "squashfs" "overlay" ];
boot.initrd.kernelModules = [ "loop" "overlay" ]; boot.initrd.kernelModules = [ "loop" "overlay" ];
# Closures to be copied to the Nix store, namely the init
# script and the top-level system configuration directory.
netboot.storeContents =
[ config.system.build.toplevel ];
# Create the squashfs image that contains the Nix store. # Create the squashfs image that contains the Nix store.
system.build.squashfsStore = netbootpkgs.makeSquashfsManifest { system.build.squashfsStore = netbootpkgs.makeSquashfsManifest {
name = "iso-manifeiist"; name = "iso-manifest";
storeContents = config.netboot.storeContents; storeContents = config.system.build.toplevel;
}; };
# Create the initrd system.build.ipxeBootDir = netbootpkgs.makePxeScript {
system.build.netbootRamdisk = pkgs.makeInitrd { inherit config pkgs;
inherit (config.boot.initrd) compressor; initrds = {
prepend = [ initrd = "${config.system.build.initialRamdisk}/initrd";
"${config.system.build.initialRamdisk}/initrd" squashes = "${(
"${(
netbootpkgs.makeCpioRecursive { netbootpkgs.makeCpioRecursive {
name = "better-initrd"; name = "better-initrd";
inherit (config.boot.initrd) compressor; inherit (config.boot.initrd) compressor;
root = config.system.build.squashfsStore; root = config.system.build.squashfsStore;
} }
)}/initrd" )}/initrd";
]; squashmanifest = "${pkgs.makeInitrd {
inherit (config.boot.initrd) compressor;
contents = contents =
[ [
{ {
@ -111,22 +94,8 @@ in
symlink = "/nix-store-isos"; symlink = "/nix-store-isos";
} }
]; ];
}}/initrd";
}; };
system.build.netbootIpxeScript = pkgs.writeTextDir "netboot.ipxe" ''
#!ipxe
kernel ${pkgs.stdenv.hostPlatform.platform.kernelTarget} init=${config.system.build.toplevel}/init initrd=initrd ${toString config.boot.kernelParams}
initrd initrd
boot
'';
system.build.ipxeBootDir = pkgs.symlinkJoin {
name = "ipxeBootDir";
paths = [
config.system.build.netbootRamdisk
config.system.build.kernel
config.system.build.netbootIpxeScript
];
}; };
boot.loader.timeout = 10; boot.loader.timeout = 10;