783877d147
various minor fixes; bump archlive to nov 2021 use dkms in live Signed-off-by: Maurice Zhou <jasper@apvc.uk>
148 lines
4.1 KiB
ReStructuredText
148 lines
4.1 KiB
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.. highlight:: sh
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Preparation
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======================
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.. contents:: Table of Contents
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:local:
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#. Disable Secure Boot. ZFS modules can not be loaded if Secure Boot is enabled.
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#. Download a variant of Fedora 34 live image
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and boot from it.
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- `Fedora Workstation (GNOME) <https://download.fedoraproject.org/pub/fedora/linux/releases/34/Workstation/x86_64/iso/>`__
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- `Fedora Spins (Xfce, i3, ...) <https://download.fedoraproject.org/pub/fedora/linux/releases/34/Spins/x86_64/iso/>`__
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#. Set root password or ``/root/.ssh/authorized_keys``.
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#. Start SSH server::
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echo PermitRootLogin yes >> /etc/ssh/sshd_config
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systemctl start sshd
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#. Connect from another computer::
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ssh root@192.168.1.19
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#. Temporarily set SELinux to permissive in live environment::
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setenforce 0
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SELinux will be enabled on the installed system.
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#. Install ``kernel-devel``::
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source /etc/os-release
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dnf install -y https://dl.fedoraproject.org/pub/fedora/linux/releases/${VERSION_ID}/Everything/x86_64/os/Packages/k/kernel-devel-$(uname -r).rpm
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#. Add ZFS repo::
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dnf install -y https://zfsonlinux.org/fedora/zfs-release.fc${VERSION_ID}.noarch.rpm
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#. If zfs-fuse from official Fedora repo is installed, remove it first. It is not maintained and should not be used under any circumstance::
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dnf remove -y zfs-fuse
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#. Install ZFS packages::
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dnf install -y zfs
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#. Load kernel modules::
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modprobe zfs
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#. Install helper script and partition tool::
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dnf install -y arch-install-scripts gdisk dosfstools
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#. Target Fedora version::
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INST_FEDORA_VER='34'
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#. Unique pool suffix. ZFS expects pool names to be
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unique, therefore it's recommended to create
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pools with a unique suffix::
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INST_UUID=$(dd if=/dev/urandom bs=1 count=100 2>/dev/null | tr -dc 'a-z0-9' | cut -c-6)
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#. Identify this installation in ZFS filesystem path::
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INST_ID=fedora
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#. Target disk
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List available disks with::
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ls /dev/disk/by-id/*
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If using virtio as disk bus, use
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``/dev/disk/by-path/*``.
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Declare disk array::
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DISK='/dev/disk/by-id/ata-FOO /dev/disk/by-id/nvme-BAR'
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For single disk installation, use::
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DISK='/dev/disk/by-id/disk1'
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#. Choose a primary disk. This disk will be used
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for primary EFI partition and hibernation, default to
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first disk in the array::
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INST_PRIMARY_DISK=$(echo $DISK | cut -f1 -d\ )
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#. Set vdev topology, possible values are:
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- (not set, single disk or striped; no redundancy)
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- mirror
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- raidz1
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- raidz2
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- raidz3
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::
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INST_VDEV=
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This will create a single vdev with the topology of your choice.
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It is also possible to manually create a pool with multiple vdevs, such as::
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zpool create --options \
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poolName \
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mirror sda sdb \
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raidz2 sdc ... \
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raidz3 sde ... \
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spare sdf ...
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Notice the cost of parity when using RAID-Z. See
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`here <https://www.delphix.com/blog/delphix-engineering/zfs-raidz-stripe-width-or-how-i-learned-stop-worrying-and-love-raidz>`__
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and `here <https://docs.google.com/spreadsheets/d/1tf4qx1aMJp8Lo_R6gpT689wTjHv6CGVElrPqTA0w_ZY/>`__.
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For boot pool, which must be readable by GRUB, mirrored vdev should always be used for maximum redundancy.
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This guide will use mirrored bpool for multi-disk setup.
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Refer to `zpoolconcepts <https://openzfs.github.io/openzfs-docs/man/7/zpoolconcepts.7.html>`__
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and `zpool-create <https://openzfs.github.io/openzfs-docs/man/8/zpool-create.8.html>`__
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man pages for details.
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#. Set partition size:
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Set ESP size::
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INST_PARTSIZE_ESP=2 # in GB
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Set boot pool size. To avoid running out of space while using
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boot environments, the minimum is 4GB. Adjust the size if you
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intend to use multiple kernel/distros::
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INST_PARTSIZE_BPOOL=4
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Set swap size. It's `recommended <https://chrisdown.name/2018/01/02/in-defence-of-swap.html>`__
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to setup a swap partition. If you intend to use hibernation,
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the minimum should be no less than RAM size. Skip if swap is not needed::
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INST_PARTSIZE_SWAP=8
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Root pool size, use all remaining disk space if not set::
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INST_PARTSIZE_RPOOL=
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