Debian ROOT ZFS:
echo "deb http://ftp.debian.org/debian stretch main contrib non-free” > /etc/apt/sources.list echo “deb http://security.debian.org stretch/updates main contrib non-free” >> /etc/apt/sources.list apt update apt install openssh-server sed -i "s/PasswordAuthentication no/PasswordAuthentication yes/g" /etc/ssh/sshd_config systemctl restart ssh
apt install --yes debootstrap gdisk linux-headers-$(uname -r) apt install --yes zfs-dkms modprobe zfs
sgdisk --zap-all /dev/sda sgdisk --zap-all /dev/sdb sgdisk --zap-all /dev/sdc sgdisk --zap-all /dev/sdd sgdisk -a1 -n1:34:2047 -t1:EF02 /dev/sda sgdisk -n2:1M:+512M -t2:EF00 /dev/sda sgdisk -n3:0:0 -t3:BF01 /dev/sda sgdisk /dev/sda -R /dev/sdb sgdisk -G /dev/sdb sgdisk /dev/sda -R /dev/sdc sgdisk /dev/sda -R /dev/sdd sgdisk -G /dev/sdc sgdisk -G /dev/sdd
zpool create -o ashift=12 -O atime=off -O canmount=off -O compression=lz4 -O normalization=formD -O mountpoint=/rpool -R /mnt rpool raidz2 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3
zfs create -o canmount=off -o mountpoint=none rpool/ROOT zfs create -o canmount=noauto -o mountpoint=/ rpool/ROOT/pve-1 zfs mount rpool/ROOT/pve-1 zpool set bootfs=rpool/ROOT/pve-1 rpool zfs create rpool/data mkdir -p /mnt/var/tmp chmod 1777 /mnt/var/tmp debootstrap stretch /mnt
zfs set devices=off rpool echo pve > /mnt/etc/hostname
nano /mnt/etc/network/interfaces:
auto eno1 iface eno1 inet dhcp
mount --rbind /dev /mnt/dev mount --rbind /proc /mnt/proc mount --rbind /sys /mnt/sys chroot /mnt /bin/bash --login
nano /etc/apt/sources.list deb http://ftp.debian.org/debian stretch main contrib non-free deb-src http://ftp.debian.org/debian stretch main contrib non-free deb http://security.debian.org stretch/updates main contrib non-free
ln -s /proc/self/mounts /etc/mtab apt update
apt install --yes locales dpkg-reconfigure locales
dpkg-reconfigure tzdata
apt install --yes gdisk linux-headers-$(uname -r) linux-image-amd64 apt install --yes zfs-dkms zfs-initramfs modprobe zfs apt install --yes dosfstools mkdosfs -F 32 -n EFI /dev/sda2 mkdir /boot/efi
echo PARTUUID=$(blkid -s PARTUUID -o value /dev/sda2) /boot/efi vfat defaults 0 1 >> /etc/fstab mount /boot/efi apt install --yes grub-efi-amd64
grub-probe / update-initramfs -u -k all
nano /etc/default/grub
Remove quiet from: GRUB_CMDLINE_LINUX_DEFAULT
Uncomment: GRUB_TERMINAL=console
Save and quit.
update-grub grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=debian --recheck --no-floppy
passwd
exi
mount | grep -v zfs | tac | awk '/\/mnt/ {print $3}' | xargs -i{} umount -lf {}
zpool export rpool
reboot
Swap:
zfs create -V 8G -b $(getconf PAGESIZE) -o compression=zle -o logbias=throughput -o sync=always -o primarycache=metadata -o secondarycache=none -o com.sun:auto-snapshot=false rpool/swap
mkswap -f /dev/zvol/rpool/swap echo /dev/zvol/rpool/swap none swap defaults 0 0 >> /etc/fstab swapon -av
As /var/log is already compressed by ZFS, logrotate’s compression is going to burn CPU and disk I/O for (in most cases) very little gain. Also, if you are making snapshots of /var/log, logrotate’s compression will actually waste space, as the uncompressed data will live on in the snapshot. You can edit the files in /etc/logrotate.d by hand to comment out compress, or use this loop (copy-and-paste highly recommended):
for file in /etc/logrotate.d/* ; do
if grep -Eq "(^|[^#y])compress" "$file" ; then
sed -i -r "s/(^|[^#y])(compress)/\1#\2/" "$file"
fi
done