debootstrap_rpool.sh

# apt-add-repository ppa:zfs-native/stable
# apt-get update
# apt-get install ubuntu-zfs
# apt-get install debootstrap

HOST=vm1
DISKS="/dev/disk/by-id/ata-Samsung_SSD_850_EVO_120GB_S21UNSAG310692M"

zpool create \
  -f \
  -d \
  -o ashift=13 \
  -o feature@async_destroy=enabled \
  -o feature@empty_bpobj=enabled \
  -o feature@lz4_compress=enabled \
  -o feature@spacemap_histogram=enabled \
  -o feature@enabled_txg=enabled \
  -O normalization=formD \
  -O atime=off \
  -O canmount=off \
  -O compression=lz4 \
  -O mountpoint=/ \
  -R /mnt \
  "$HOST"-rpool \
  "$DISKS"

zfs set sync=disabled "$HOST"-rpool
zfs create -o canmount=off -o mountpoint=none "$HOST"-rpool/ROOT
zfs create -o canmount=noauto -o mountpoint=/ "$HOST"-rpool/ROOT/trusty
zfs mount "$HOST"-rpool/ROOT/trusty
zpool set bootfs="$HOST"-rpool/ROOT/trusty "$HOST"-rpool

for disk in $DISKS; do
	parted -s "$disk" mkpart GRUB2 48s 2047s
	parted -s $disk set 2 bios_grub on
done

debootstrap trusty /mnt

cat > /mnt/etc/hosts << EOF
127.0.0.1 localhost
127.0.1.1 $HOST

::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
EOF

for if in eth0 eth1 eth2 eth3; do
  cat > /mnt/etc/network/interfaces.d/$if << EOF
allow-hotplug $if
iface $if inet dhcp
EOF
done

echo "$HOST" > /mnt/etc/hostname

cat > /mnt/etc/udev/rules.d/70-zfs-grub-fix.rules << 'EOF'
KERNEL=="sd*[a-z]1|cciss*[a-z]1", ENV{DEVTYPE}=="partition", ENV{ID_SERIAL}=="?*", SYMLINK+="$env{ID_BUS}-$env{ID_SERIAL}"
EOF

cat > /mnt/etc/default/grub << EOF
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=\`lsb_release -i -s 2> /dev/null || echo Debian\`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="boot=zfs rpool=$HOST-rpool"
EOF

cat > /mnt/etc/apt/sources.list << EOF
deb http://de.archive.ubuntu.com/ubuntu trusty           main restricted universe multiverse
deb http://de.archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse
deb http://de.archive.ubuntu.com/ubuntu trusty-updates   main restricted universe multiverse
deb http://de.archive.ubuntu.com/ubuntu trusty-security  main restricted universe multiverse
EOF

cat > /mnt/etc/apt/apt.conf.d/01norecommend << EOF
APT::Install-Recommends "0";
APT::Install-Suggests "0";
EOF

cat > /mnt/etc/resolv.conf << EOF
nameserver 192.168.188.1
search fritz.box
EOF

echo "Europe/Berlin" > /mnt/etc/timezone

for disk in /dev/disk/by-id/ata*-part1; do ln -s $disk /dev/$(echo $disk | sed 's,.*/\(.*\)-part1,\1,g'); done

for f in /sys /proc /dev; do mount --rbind $f /mnt/$f; done

cat > /mnt/root/install-chroot.sh << __EOF__
for locale in en_US.UTF-8 de_DE.UTF-8; do locale-gen \$locale; done

grep -v rootfs /proc/mounts > /etc/mtab

dpkg-reconfigure -f noninteractive tzdata

apt-get update
apt-get --yes dist-upgrade

apt-get install --yes linux-generic-lts-wily build-essential tasksel software-properties-common

for task in server openssh-server virt-host; do tasksel install \$task; done

apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get --yes dist-upgrade
apt-get install --yes ubuntu-zfs
apt-get install --yes zfs-initramfs

adduser --disabled-password --gecos "" username
usermod -a -G adm,sudo username
echo "username:password" | chpasswd

apt-get install --yes htop

DEBIAN_FRONTEND=noninteractive apt-get --yes -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install grub-pc

for disk in $DISKS; do
  grub-install \$disk
done

update-grub
__EOF__

chroot /mnt /bin/bash -x /root/install-chroot.sh

umount /mnt/proc
umount /mnt/sys/fs/fuse/connections
umount /mnt/sys/kernel/*
umount /mnt/sys/fs/cgroup/*
umount /mnt/sys/fs/cgroup
umount /mnt/sys/fs/pstore
umount /mnt/sys
umount /mnt/dev/pts
umount /mnt/dev
umount /mnt/tmp
umount /mnt

zfs inherit sync "$HOST"-rpool
zfs snapshot "$HOST"-rpool/ROOT/trusty@installed
zpool export "$HOST"-rpool