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Install scripts for installing Arch Linux on ZFS. Not runnable, just listed commands.
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| #!/bin/bash | |
| # Check before running, may need intervention | |
| # Replace the following: | |
| BOOT_PARTITION="/dev/sdg1" | |
| DISK_1="ata-SanDisk_SDSSDXPS480G_152271401093" | |
| DISK_2="ata-SanDisk_SDSSDXPS480G_154501401266" | |
| # Replace with poolname. I use 'vault' here | |
| POOL="vault" | |
| # Check for zfs | |
| modprobe zfs | |
| # Create pool | |
| zpool create -f -o ashift=12 ${POOL} mirror ${DISK_1} ${DISK_2} | |
| ## Properties | |
| # Compression | |
| zfs set compression=on ${POOL} | |
| # Access time | |
| zfs set atime=on ${POOL} | |
| zfs set relatime=on ${POOL} | |
| # Create key datasets | |
| zfs create -o mountpoint=none "${POOL}/ROOT" | |
| zfs create -o mountpoint=legacy "${POOL}/ROOT/default" | |
| zfs create -o mountpoint=/home "${POOL}/home" | |
| ## Optional datasets ## | |
| # tmp | |
| zfs create "${POOL}/tmp" \ | |
| -o setuid=off \ | |
| -o devices=off \ | |
| -o sync=disabled \ | |
| -o mountpoint=/tmp | |
| # Mask systemd’s automatic tmpfs-backed tmp | |
| systemctl mask tmp.mount | |
| # var | |
| zfs create "${POOL}/var" \ | |
| -o xattr=sa \ | |
| -o mountpoint=legacy | |
| # usr | |
| zfs create "${POOL}/usr" -o mountpoint=legacy | |
| ## End Optional | |
| # Unmount pool | |
| zfs umount -a | |
| # Put them in /etc/fstab | |
| nano /etc/fstab | |
| # <pass><file system> <dir> <type> <options> <dump> | |
| # vault/ROOT/default / zfs rw,relatime,xattr,noacl 0 0 | |
| # vault/var /var zfs rw,relatime,xattr,noacl 0 0 | |
| # vault/usr /usr zfs rw,relatime,xattr,noacl 0 0 | |
| # set boot property | |
| zpool set bootfs="${POOL}/ROOT/default" ${POOL} | |
| ## Setup Installation ## | |
| # Export the pool | |
| zpool export ${POOL} | |
| # re-import the pool, | |
| zpool import -d /dev/disk/by-id -R /mnt ${POOL} | |
| # bring the zpool.cache file into your new system | |
| mkdir -p /mnt/etc/zfs | |
| cp /etc/zfs/zpool.cache /mnt/etc/zfs/zpool.cache | |
| # OR, if you do not have /etc/zfs/zpool.cache, create it: | |
| # zpool set cachefile=/etc/zfs/zpool.cache zroot | |
| # Mount legacy zfs | |
| mkdir /mnt/{home,var,usr,tmp,boot} | |
| mount -t zfs "${POOL}/home" "/mnt/home" | |
| mount -t zfs "${POOL}/var" "/mnt/var" | |
| mount -t zfs "${POOL}/usr" "/mnt/usr" | |
| mount -t zfs "${POOL}/tmp" "/mnt/tmp" | |
| # Boot | |
| mkdir -p /boot | |
| mount "/dev/${BOOT_PARTITION}" /boot | |
| # Generate the fstab | |
| genfstab -U -p /mnt >> /mnt/etc/fstab | |
| # Comment out all non-legacy datasets apart from the root dataset, | |
| # the swap file and the boot/EFI partition | |
| nano /mnt/etc/fstab | |
| # Edit mirrorlist | |
| nano /etc/pacman.d/mirrorlist | |
| # Install the base system | |
| pacstrap -i /mnt base base-devel | |
| # Edit ramdisk hooks | |
| # If you are using a separate dataset for /usr, have the usr hook enabled after zfs | |
| # If using a separate dataset for /var, add shutdowm hook | |
| # HOOKS="base udev autodetect modconf block keyboard zfs usr filesystems shutdown" | |
| nano /mnt/etc/mkinitcpio.conf | |
| # Enter Chroot |
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| #!/bin/bash | |
| # Chroot in | |
| arch-chroot /mnt /bin/bash | |
| # Add the Arch ZFS repository to /etc/pacman.conf | |
| nano /etc/pacman.conf | |
| # [archzfs] | |
| # Server = http://archzfs.com/$repo/x86_64 | |
| # sign its key | |
| pacman-key -r 5E1ABF240EE7A126 && pacman-key --lsign-key 5E1ABF240EE7A126 | |
| # install zfs-linux | |
| pacman -Syyu | |
| pacman -S zfs-linux-git | |
| # For /tmp, mask (disable) systemd's automatic tmpfs-backed /tmp | |
| systemctl mask tmp.mount | |
| ## Install as normal ## | |
| nano /etc/pacman.d/mirrorlist | |
| # set locale, uncomment en_US.UTF-8 UTF-8 | |
| nano /etc/locale.gen | |
| # generate the new locales | |
| locale-gen | |
| # set locale, LANG refers to the first column of locale | |
| nano /etc/locale.conf | |
| # LANG=en_US.UTF-8 | |
| # timezone | |
| ln -s /usr/share/zoneinfo/Canada/Pacific /etc/localtime | |
| # set the time standard to UTC | |
| hwclock --systohc --utc | |
| ## Bootloader ## | |
| # re-generate the initramfs image | |
| mkinitcpio -p linux | |
| # If intel cpu, set ucode as the first initrd in the bootloader | |
| pacman -S intel-ucode | |
| # Install systemd-boot to wherever esp mounted | |
| bootctl --path=/mnt/efi install | |
| # Bootloader entry | |
| # # /mnt/efi/loader/entries/Archon.conf | |
| # title Archon default (Arch Linux) | |
| # linux /installs/Archon/vmlinuz-linux | |
| # initrd /installs/Archon/intel-ucode.img | |
| # initrd /installs/Archon/initramfs-linux.img | |
| # options zfs=vault/ARCHON/ROOT/default rw | |
| ## Configure the network ## | |
| # Set the hostname to your liking: | |
| nano /etc/hostname | |
| nano /etc/hosts | |
| ## /etc/hosts: static lookup table for host names | |
| ## <ip-address> <hostname.domain.org> <hostname> | |
| # 127.0.0.1 localhost.localdomain localhost | |
| # ::1 localhost.localdomain localhost | |
| # 192.168.0.2 Archon.localdomain Archon | |
| # get nic | |
| ip link | |
| # enable internet | |
| systemctl enable dhcpcd@eno1.service | |
| # root pass | |
| passwd | |
| # Set either shutdown hook or this | |
| systemctl enable mkinitcpio-generate-shutdown-ramfs.service | |
| ## Install Done, Customize ## | |
| # Make a user | |
| pacman -S zsh sudo | |
| useradd -m -G wheel -s /usr/bin/zsh john | |
| passwd john | |
| EDITOR=nano visudo | |
| nano /etc/pacman.conf | |
| pacman -S openssh | |
| systemctl enable sshd | |
| nano /etc/ssh/sshd_config | |
| # Done! | |
| exit | |
| umount /mnt/boot | |
| umount /mnt/mnt/efi | |
| umount /mnt/home :( | |
| umount /mnt/tmp | |
| umount /mnt/usr | |
| umount /mnt/var | |
| zfs umount -a | |
| zpool export vault | |
| # # After reboot | |
| zpool set cachefile=/etc/zfs/zpool.cache vault | |
| systemctl enable zfs.target | |
| # To write the hostid file safely you need to use a small C program: | |
| #include <stdio.h> | |
| #include <errno.h> | |
| #include <unistd.h> | |
| int main() { | |
| int res; | |
| res = sethostid(gethostid()); | |
| if (res != 0) { | |
| switch (errno) { | |
| case EACCES: | |
| fprintf(stderr, "Error! No permission to write the" | |
| " file used to store the host ID.\n" | |
| "Are you root?\n"); | |
| break; | |
| case EPERM: | |
| fprintf(stderr, "Error! The calling process's effective" | |
| " user or group ID is not the same as" | |
| " its corresponding real ID.\n"); | |
| break; | |
| default: | |
| fprintf(stderr, "Unknown error.\n"); | |
| } | |
| return 1; | |
| } | |
| return 0; | |
| } | |
| # Copy it, save it as writehostid.c and compile it with gcc -o writehostid writehostid.c, finally execute it and regenerate the initramfs image: | |
| nano writehostid.c | |
| gcc -o writehostid writehostid.c | |
| chmod +x writehostid | |
| ./writehostid | |
| mkinitcpio -p linux |
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