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* Amazon now supports booting a custom kernel in the AMI using

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pv-grub, so supply a GRUB menu that starts our own kernel and
  initrd.

svn path=/nixos/trunk/; revision=22678
This commit is contained in:
Eelco Dolstra 2010-07-20 13:53:14 +00:00
parent 1b04d3a813
commit d7f638da0c
1 changed files with 24 additions and 19 deletions
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41
modules/virtualisation/amazon-image.nix
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@ -2,6 +2,20 @@
with pkgs.lib;
let
grubMenu = pkgs.writeText "pv-grub-menu.lst"
''
default 0
timeout 0
title EC2
root (hd0)
kernel /nix/var/nix/profiles/system/kernel systemConfig=/nix/var/nix/profiles/system init=/nix/var/nix/profiles/system/init
initrd /nix/var/nix/profiles/system/initrd
'';
in
{
system.build.amazonImage =
pkgs.vmTools.runInLinuxVM (
@ -48,39 +62,30 @@ with pkgs.lib;
mkdir -p /mnt/etc/nixos
cp ${./amazon-config.nix} /mnt/etc/nixos/configuration.nix
# Amazon assumes that there is a /sbin/init, so create one.
# Note that simply creating /sbin/init as a symlink breaks
# some EC2 initrds (like Ubuntu's) because they do a "test
# -x $mountPoint/sbin/init".
mkdir -p /mnt/sbin
echo "#! /nix/var/nix/profiles/system/init" > /mnt/sbin/init
chmod +x /mnt/sbin/init
# Amazon uses `pv-grub', which expects a
# /boot/grub/menu.lst.
mkdir -p /mnt/boot/grub
cp ${grubMenu} /mnt/boot/grub/menu.lst
umount /mnt
''
);
# On EC2 we don't get to supply our own kernel, so we can't load any
# modules. However, dhclient fails if the ipv6 module isn't loaded,
# unless it's compiled without IPv6 support. So do that.
nixpkgs.config.packageOverrides = pkgsOld:
{ dhcp = pkgs.lib.overrideDerivation pkgsOld.dhcp (oldAttrs:
{ configureFlags = "--disable-dhcpv6";
});
};
fileSystems =
[ { mountPoint = "/";
device = "/dev/disk/by-label/nixos";
}
{ mountPoint = "/data";
device = "/dev/sda2";
device = "/dev/xvdc";
autocreate = true;
}
];
swapDevices =
[ { device = "/dev/sda3"; } ];
[ { device = "/dev/xvdb"; } ];
boot.initrd.kernelModules = [ "xen-blkfront" ];
boot.kernelModules = [ "xen-netfront" ];
# There are no virtual consoles.
services.mingetty.ttys = [ ];