boot live cd and
sudo su passwd ubuntu apt-add-repository universe apt update apt install openssh-server # connect from another PC via ssh
apt install --yes debootstrap gdisk zfs-initramfs
Reset disk and create GPT partition schema
DISK=/dev/disk/by-id/ata-HFS512G39MND-3510A_FJ64N5235113A4S13 sgdisk --clear -g $DISK
Prepare partitions
# Run this if you need legacy (BIOS) booting: sgdisk -a1 -n2:34:2047 -t2:EF02 $DISK # Run this for UEFI booting or raidz pool: sgdisk -n3:1M:+512M -t3:EF00 $DISK parted $DISK set 3 bios_grub on # needed for embedding grub in this partition # and after run these: sgdisk -n9:-8M:0 -t9:BF07 $DISK sgdisk -n1:0:0 -t1:BF01 $DISK
Create pool or …
zpool create -o ashift=12 \ -O atime=off -O canmount=off -O compression=lz4 -O normalization=formD \ -O mountpoint=/ -R /mnt -f \ rpool ${DISK}-part1
… import existing pool
zpool export rpool zpool import -R /mnt rpool ... umount everything inside /mnt and remove subfolders zfs mount rpool/ROOT/ubuntu
or create raidz pool
zpool create -O atime=off -O mountpoint=/ -R /mnt -O canmount=off -O compression=lz4 -O normalization=formD -o ashift=12 \ rpool raidz /dev/disk/by-id/ata-ST4000NM0035-1V4107_ZC10????-part1
create filesystem dataset to act as container
zfs create -o canmount=off -o mountpoint=none rpool/ROOT
create filesystem for root
zfs create -o canmount=noauto -o mountpoint=/ rpool/ROOT/ubuntu zfs mount rpool/ROOT/ubuntu
create other filesystems
zfs create -o setuid=off rpool/home #zfs create -o canmount=off -o setuid=off -o exec=off rpool/var #zfs create -o com.sun:auto-snapshot=false -o exec=on rpool/var/tmp If this system will use NFS (locking): # zfs create -o com.sun:auto-snapshot=false \ -o mountpoint=/var/lib/nfs rpool/var/nfs
deboostrap
DISTRO=xenial mount -o remount,dev /mnt debootstrap $DISTRO /mnt zfs set devices=off rpool mount --rbind /dev /mnt/dev mount --rbind /proc /mnt/proc mount --rbind /sys /mnt/sys chroot /mnt /bin/bash --login
customization
echo 'LANG="en_US.UTF-8"' > /etc/default/locale dpkg-reconfigure tzdata dpkg-reconfigure keyboard-configuration locale-gen it_IT.UTF-8 locale-gen en_US.UTF-8 update-locale LANG=it_IT.UTF-8 LC_MESSAGES=POSIX DISTRO=xenial cat > /etc/apt/sources.list <<EOF deb http://archive.ubuntu.com/ubuntu $DISTRO main universe #deb-src http://archive.ubuntu.com/ubuntu $DISTRO main universe deb http://security.ubuntu.com/ubuntu $DISTRO-security main universe #deb-src http://security.ubuntu.com/ubuntu $DISTRO-security main universe deb http://archive.ubuntu.com/ubuntu $DISTRO-updates main universe #deb-src http://archive.ubuntu.com/ubuntu $DISTRO-updates main universe EOF ln -s /proc/self/mounts /etc/mtab apt update apt install --yes --no-install-recommends linux-image-generic zfs-initramfs cat > /etc/fstab <<EOF rpool/ROOT/ubuntu / zfs defaults,noatime 0 0 EOF
export DISK=/dev/disk/by-id/ata-HFS512G39MND-3510A_FJ64N5235113A4S13
apt install dosfstools mkdosfs -F 32 -n EFI ${DISK}-part3 mkdir /boot/efi echo PARTUUID=$(blkid -s PARTUUID -o value ${DISK}-part3) /boot/efi vfat defaults 0 1 >> /etc/fstab mount /boot/efi apt install --yes grub-efi-amd64
check
grub-probe / ---> zfs
if error occur upgrade grub to 2.02-beta3 from https://repo.morph027.de/grub/pool/main/g/grub2/
grub-install --target=x86_64-efi --efi-directory=/boot/efi \
--bootloader-id=ubuntu --recheck --no-floppy
verify if “ls /boot/grub/*/zfs.mod”
If you are creating a mirror, repeat the grub-install command for each disk in the pool.
apt install --yes grub-pc
grub-install ${DISK}
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry 'Ubuntu artful 17.10' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
insmod part_gpt
insmod zfs
set root='hd1,gpt0'
search --no-floppy --fs-uuid --set=root 3f1e7de17907507c
linux /ROOT/artful@/boot/vmlinuz-4.13.0-16-generic root=ZFS=rpool/ROOT/artful ro
initrd /ROOT/artful@/boot/initrd.img-4.13.0-16-generic
}
update-initramfs -c -k all update-grub
disable root password (re-enabled in phase two below)
passwd --delete root
zfs snapshot rpool/ROOT/ubuntu@install
exit
mount | grep -v zfs | tac | awk '/\/mnt/ {print $3}' | xargs -i{} umount -lf {}
zpool export rpool
reboot
create home filesystem
zfs create -o setuid=off rpool/home
add swap
zfs create -V 4G -b $(getconf PAGESIZE) -o compression=zle \
-o logbias=throughput -o sync=always \
-o primarycache=metadata -o secondarycache=none \
-o com.sun:auto-snapshot=false rpool/swap
mkswap -f /dev/zvol/rpool/swap
echo /dev/zvol/rpool/swap none swap defaults 0 0 >> /etc/fstab
swapon -av
enable power button decomment in /etc/systemd/logind.conf
HandlePowerKey=poweroff
add user
useradd -m scipio usermod -a -G adm,cdrom,dip,plugdev,sudo,video scipio passwd scipio
ubuntu standard
apt install --yes ubuntu-standard
ubuntu desktop
apt-get install -y software-properties-common add-apt-repository ppa:gnome3-team/gnome3-staging sudo apt install -y ubuntu-gnome-desktop #apt install --yes ubuntu-desktop apt-get -y install $(check-language-support -l it) # HWE support for XENIAL sudo apt-get install --install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04
enable network manager on all interfaces (see this
touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
disable compression on logs
for file in /etc/logrotate.d/* ; do
if grep -Eq "(^|[^#y])compress" "$file" ; then
sed -i -r "s/(^|[^#y])(compress)/\1#\2/" "$file"
fi
done
after reboot destroy ubuntu@install snapshot
zfs destroy rpool/ROOT/ubuntu@install
disable root password
sudo usermod -p '*' root