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computers:linux:arch-zfs-install [2025/08/30 04:02] – wikiadmincomputers:linux:arch-zfs-install [2025/09/06 11:30] (current) – wikiadmin
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-===== Install arch linux with zfs root =====+ ===== Install arch linux with zfs root ===== 
 + 
   - Obtain latest ISO from archlinux.org and burn it to an ISO   - Obtain latest ISO from archlinux.org and burn it to an ISO
   - Boot up and change / size  \     - Boot up and change / size  \  
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     - <code>curl -s https://archzfs.leibelt.de/media/setup/init | bash</code>     - <code>curl -s https://archzfs.leibelt.de/media/setup/init | bash</code>
     - <code>zgenhostid -f 0x00bab10c</code>     - <code>zgenhostid -f 0x00bab10c</code>
-  - Create zfs pool +  - Partition Disk(s) 
-  - Create file systems +    - Create EFI partition<code>sgdisk -n "1:1m:+512m" -t "1:ef00" /dev/sda</code> 
-  - Export/Import pool and mount file systems +    - I suggest a swap partition large enough to hold RAM (my system has 16g) contents if you intend to use hibernate<code>sgdisk -n "2:0:+16g" -t "2:8200" /dev/sda</code> 
-  - Install the system +    - Allocate the remainder to the ZFS pool<code>sgdisk -n "3:0:-10m" -t "3:bf00" /dev/sda</code> 
-    - <code>pacstrap /mnt linux linux-headers linux-firmware base vim amd-ucode networkmanager sudo openssh rsync</code>+  - Create the ZFS pool 
 +    - I suggest using the partition UUID for the device name.<code> 
 +root@archiso ~ # ls -l /dev/disk/by-partuuid|grep sda3  
 +lrwxrwxrwx 1 root root 10 Sep  2 10:21 1aea6cc8-8333-4d5c-a9e6-e0a51296391d -> ../../sda3 
 +</code> 
 +    - We will be using [[https://zfsbootmenu.org|zfsbootmenu]] which is currently using OpenZFS 2.3<code> 
 +zpool create -f -o ashift=12 \ 
 + -O compression=lz4 \ 
 + -O acltype=posixacl \ 
 + -O xattr=sa \ 
 + -O relatime=on \ 
 + -o autotrim=on \ 
 + -o compatibility=openzfs-2.3-linux \ 
 + -m none zroot /dev/disk/by-partuuid/1aea6cc8-8333-4d5c-a9e6-e0a51296391d 
 +</code> 
 +  - Export / Import the ZFS pool<code>zpool export zroot && zpool import -NR /mnt zroot</code> 
 +  - Create the ZFS file systems including the home directory for the normal user account.<code> 
 +zfs create -o mountpoint=none zroot/ROOT 
 +zfs create -o mountpoint=/ -o canmount=noauto zroot/ROOT/arch 
 +zfs mount zroot/ROOT/arch 
 + 
 +zfs mount 
 +zroot/ROOT/arch                 /mnt 
 +</code> 
 +  - Set up EFI and swap partitions<code> 
 +mkfs.vfat -F32 /dev/sda1 
 +mkswap /dev/sda2</code> 
 +  - Install the system<code>pacstrap /mnt linux linux-headers linux-firmware base vim amd-ucode networkmanager sudo openssh rsync</code> 
 +  - Populate the fstab<code> 
 +echo "$(blkid /dev/sda1|cut -d\  -f2) /boot/efi vfat defaults 0 2" >> /mnt/etc/fstab 
 +echo "$(blkid /dev/sda2|cut -d\  -f2) none swap defaults 0 0" >> /mnt/etc/fstab</code>
   - Move into the install   - Move into the install
     - <code>arch-chroot /mnt</code>     - <code>arch-chroot /mnt</code>
-  - Create a normal user and add to sudoers/wheel group +  - Set up arch system
-    - useradd -G wheel some_user +
-    - passwd some_user +
-    - visudo to allow wheel group to sudo +
-    - su - some_user +
-  - Install paru +
-    - sudo pacman -S --needed base-devel git +
-    - git clone https://aur.archlinux.org/paru.git +
-    - cd paru +
-    - makepkg -si +
-  - Install zfs support +
-    - paru -S zfs-utils +
-    - paru -S zfs-dkms +
-    - exit to root +
-  - finish setup +
-    - <code>zgenhostid -f 0x00bab10c</code> +
-    - edit /etc/mkinitcpio.conf +
-      - remove fsck, add zfs resume +
-      - <code>mkinitcpio -P</code> +
-    - set up services<code>systemctl disable zfs-import-cache.service +
-systemctl mask zfs-import-cache.service +
-systemctl enable zfs-import-scan.service +
-systemctl enable zfs-mount.service +
-systemctl enable zfs.target +
-systemctl enable zfs-volumes.target +
-systemctl enable zfs-import.target +
-systemctl enable zfs-zed.service +
-systemctl enable NetworkManager</code>+
     - Time<code>ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime     - Time<code>ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime
 hwclock --systohc</code> hwclock --systohc</code>
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 locale-gen locale-gen
 echo "LANG=en_US.UTF-8" > /etc/locale.conf</code> echo "LANG=en_US.UTF-8" > /etc/locale.conf</code>
-    - set root password +    - vconsole<code>echo -e "KEYMAP=us\n#FONT=latarcyrheb-sun32" > /etc/vconsole.conf</code> 
-    - vconsole +    - hostname/hosts<code>echo tas > /etc/hostname</code> 
-      - <code>echo -e "KEYMAP=us\n#FONT=latarcyrheb-sun32" > /etc/vconsole.conf</code> +    - set root password<code>passwd root</code> 
-    - hostname/hosts +  - Create a normal user and add to sudoers/wheel group<code>useradd -G wheel some_user 
-      - <code>echo tas > /etc/hostname</code>+passwd some_user 
 +mkdir -p ~some_user && chown some_user ~some_user</code> 
 +    - edit sudoers with visudo to uncomment one of the wheel stanzas<code> 
 +EDITOR=vim visudo</code> 
 +    - create home for some_user<code>mkdir -p ~some_user && chown some_user ~some_user</code> 
 +    - su - some_user 
 +  - Install paru<code>sudo pacman -S --needed base-devel git 
 +git clone https://aur.archlinux.org/paru.git 
 +cd paru 
 +makepkg -si 
 +</code> 
 +  - Install zfs support<code>paru -S zfs-utils 
 +paru -S zfs-dkms 
 +</code> 
 +  - exit to root<code>exit</code> 
 +  - finish setup 
 +    - <code>zgenhostid -f 0x00bab10c</code> 
 +    - edit /etc/mkinitcpio.conf and modify the HOOKS line adding //resume// and //zfs//<code> 
 +vim /etc/mkinitcpio.conf 
 +grep ^HOOKS /etc/mkinitcpio.conf 
 +HOOKS=(base udev autodetect microcode modconf kms keyboard keymap zfs consolefont block filesystems resume) 
 +mkinitcpio -P</code> 
 +    - fix up user home directories<code>rm -rf ~some_user; mv /root /_root</code> 
 +    - set up services<code>systemctl disable zfs-import-cache.service 
 +systemctl mask zfs-import-cache.service 
 +systemctl enable zfs-import-scan.service zfs-mount.service zfs.target zfs-volumes.target zfs-import.target zfs-zed.service NetworkManager</code> 
 +  - Set up the EFI and install zfsbootmenu<code> 
 +zfs set org.zfsbootmenu:commandline="rw quiet" zroot/ROOT 
 +mkdir /boot/efi 
 +mount /boot/efi 
 +mkdir -p /boot/efi/EFI/ZBM 
 +curl -o /boot/efi/EFI/ZBM/VMLINUZ.EFI -L https://get.zfsbootmenu.org/efi 
 +cp /boot/efi/EFI/ZBM/VMLINUZ.EFI /boot/efi/EFI/ZBM/VMLINUZ-BACKUP.EFI 
 +pacman -S refind 
 +refind-install 
 +rm /boot/refind_linux.conf 
 +cat << EOF >> /boot/efi/EFI/refind/refind_linux.conf 
 + 
 +menuentry "zbm boot" { 
 +    loader /EFI/ZBM/VMLINUZ.EFI 
 +    options "quiet loglevel=0 zbm.skip" 
 +} 
 +menuentry "zbm menu" { 
 +    loader /EFI/ZBM/VMLINUZ.EFI 
 +    options "quiet loglevel=0 zbm.show" 
 +} 
 +menuentry "zbm backup menu" { 
 +    loader /EFI/ZBM/VMLINUZ-BACKUP.EFI 
 +    options "quiet loglevel=0 zbm.show" 
 +} 
 +EOF 
 +</code> 
 +  - Exit and reboot<code> 
 +exit 
 +umount -n -R /mnt 
 +zpool export zroot 
 +reboot 
 +</code> 
 +  - Finish up 
 +    - Log in as root<code> 
 +zfs create -o mountpoint=none zroot/homes 
 +zfs create -o mountpoint=/root zroot/homes/root 
 +zfs create -o mountpoint=/home/USER zroot/homes/USER 
 +cp -r /etc/skel/. ~ 
 +cp -r /etc/skel/. ~some_user 
 +chown -R some_user:some_user ~some_user 
 +chmod 750 ~some_user 
 +zfs snapshot zroot/ROOT/arch@initial 
 +exit 
 +</code> 

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