mynix/nixos-infect
1
0
Fork 0
mirror of https://github.com/elitak/nixos-infect.git synced 2024-12-22 08:08:29 +03:00
Code Issues Projects Releases Packages Wiki Activity

switching to Fedora 24 for fewer hacks

Browse source
This commit is contained in:
Eric Litak 2016-06-27 04:44:08 -07:00
parent b57cfc038d
commit bbcb6a7f3e
1 changed files with 9 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
nixos-infect
View file

@ -1,8 +1,8 @@
#! /usr/bin/env bash
# Use Droplet image:
# Use Digital Ocean Droplet image:
#
# Ubuntu 16.04 (x64 or x32)
# Fedora 24 x64
#
# YMMV with any other hoster + image combination.
@ -18,8 +18,8 @@
#
# TO USE:
# - Add any custom config you want (see notes below)
# - Deploy a Debian 8.3 x64 droplet (enable ipv6; add your ssh key)
# - cat customConfig.optional nixos-infect | ssh root@targethost bash
# - Deploy the droplet indicated at the top of the file, enable ipv6, add your ssh key
# - cat customConfig.optional nixos-infect | ssh root@targethost
#
# Potential tweaks:
# /etc/nixos/{,hardware-}configuration.nix : rudimentary mostly static config
@ -62,10 +62,9 @@ EOF
# (nixos-generate-config will add qemu-user and bind-mounts, so avoid)
cat > /etc/nixos/hardware-configuration.nix << EOF
{ ... }:
let grubDev = "nodev"; in
{
imports = [ <nixpkgs/nixos/modules/profiles/qemu-guest.nix> ];
boot.loader.grub.device = grubDev;
boot.loader.grub.device = "nodev";
fileSystems."/" = { device = "/dev/vda1"; fsType = "ext4"; };
}
EOF
@ -131,28 +130,10 @@ makeSwap() {
swapon $swapFile
}
# This is a fix for /dev/shm being a symlink to /run/shm, where tmpfs is mounted.
# There is a BUG in nixos-install that needs to be investigated.
# The HACK is to just mount over whatever's there.
hackDevShm() {
umount /dev/shm || true
rm -rf /dev/shm
mkdir /dev/shm
mount -t tmpfs none /dev/shm
}
# Sometimes various mountpoints cause a non-zero exit on rsync
hackUmountMisc() {
umount /var/lib/lxcfs || true
}
hackDevShm
hackUmountMisc
makeConf
makeSwap # smallest (512MB) droplet needs extra memory!
apt-get install -y curl rsync sudo
dnf install -y perl-Digest-SHA || true # Fedora 24
groupadd -r nixbld
seq 1 10 | xargs -I{} useradd -c "Nix build user {}" -d /var/empty -g nixbld -G nixbld -M -N -r -s `which nologin` nixbld{}
@ -191,17 +172,15 @@ rsync -a --delete --exclude=$(dirname $newRootMount) $newRootMount/ $oldRootMoun
# Restore access to commands
/nix/var/nix/profiles/system/activate # (this destroys resolv.conf)
for a in ${nameservers[@]}; do echo "nameserver $a" >> /etc/resolv.conf; done
for ns in ${nameservers[@]}; do echo "nameserver $ns" >> /etc/resolv.conf; done
source /nix/var/nix/profiles/system/etc/profile
# grub/initrd was skipped with "nodev", so we need a final rebuild
sed -i 's,nodev,/dev/vda1,' /etc/nixos/hardware-configuration.nix
# grub/initrd was skipped with "nodev", because installing from inside install-root would result in wrong fs UUID, so we need a final rebuild
sed -i 's,nodev,/dev/vda,' /etc/nixos/hardware-configuration.nix
# TODO see aszlig's comment in issue about not even having to call rebuild, just nix-build system or something; without ever having to use nixos-install either? and separate ext4fs?
# man nixos-rebuild mentions this!!: nixos-rebuid build == nix-build /path/to/nixpkgs/nixos -A system
nixos-rebuild boot --install-grub || echo "WARNING: could not install grub, but we'll hope for the best: that the old installation of grub will manage to boot the new installation."
#swapoff $swapFile && rm -f $swapFile || true
sync
echo "You may now Ctrl-C or otherwise terminate this process."
reboot -f