172 lines
4.9 KiB
ReStructuredText
172 lines
4.9 KiB
ReStructuredText
.. highlight:: sh
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System Installation
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======================
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.. contents:: Table of Contents
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:local:
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#. Partition the disks::
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for i in ${DISK}; do
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# wipe flash-based storage device to improve
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# performance.
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# ALL DATA WILL BE LOST
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# blkdiscard -f $i
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sgdisk --zap-all $i
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sgdisk -n1:1M:+1G -t1:EF00 $i
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sgdisk -n2:0:+4G -t2:BE00 $i
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sgdisk -n4:0:+${INST_PARTSIZE_SWAP}G -t4:8200 $i
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if test -z $INST_PARTSIZE_RPOOL; then
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sgdisk -n3:0:0 -t3:BF00 $i
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else
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sgdisk -n3:0:+${INST_PARTSIZE_RPOOL}G -t3:BF00 $i
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fi
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sgdisk -a1 -n5:24K:+1000K -t5:EF02 $i
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sync && udevadm settle && sleep 3
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cryptsetup open --type plain --key-file /dev/random $i-part4 ${i##*/}-part4
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mkswap /dev/mapper/${i##*/}-part4
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swapon /dev/mapper/${i##*/}-part4
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done
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#. Create boot pool::
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zpool create \
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-o compatibility=grub2 \
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-o ashift=12 \
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-o autotrim=on \
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-O acltype=posixacl \
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-O canmount=off \
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-O compression=lz4 \
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-O devices=off \
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-O normalization=formD \
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-O relatime=on \
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-O xattr=sa \
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-O mountpoint=/boot \
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-R /mnt \
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bpool \
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mirror \
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$(for i in ${DISK}; do
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printf "$i-part2 ";
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done)
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If not using a multi-disk setup, remove ``mirror``.
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You should not need to customize any of the options for the boot pool.
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GRUB does not support all of the zpool features. See ``spa_feature_names``
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in `grub-core/fs/zfs/zfs.c
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<http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/fs/zfs/zfs.c#n276>`__.
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This step creates a separate boot pool for ``/boot`` with the features
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limited to only those that GRUB supports, allowing the root pool to use
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any/all features.
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Features enabled with ``-o compatibility=grub2`` can be seen
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`here <https://github.com/openzfs/zfs/blob/master/cmd/zpool/compatibility.d/grub2>`__.
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#. Create root pool::
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zpool create \
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-o ashift=12 \
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-o autotrim=on \
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-R /mnt \
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-O acltype=posixacl \
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-O canmount=off \
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-O compression=zstd \
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-O dnodesize=auto \
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-O normalization=formD \
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-O relatime=on \
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-O xattr=sa \
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-O mountpoint=/ \
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rpool \
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mirror \
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$(for i in ${DISK}; do
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printf "$i-part3 ";
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done)
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If not using a multi-disk setup, remove ``mirror``.
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#. Create root system container:
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- Unencrypted::
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zfs create \
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-o canmount=off \
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-o mountpoint=none \
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rpool/alma
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- Encrypted:
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Pick a strong password. Once compromised, changing password will not keep your
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data safe. See ``zfs-change-key(8)`` for more info::
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zfs create \
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-o canmount=off \
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-o mountpoint=none \
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-o encryption=on \
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-o keylocation=prompt \
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-o keyformat=passphrase \
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rpool/alma
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You can automate this step (insecure) with: ``echo POOLPASS | zfs create ...``.
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Create system datasets, let Alma declaratively
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manage mountpoints with ``mountpoint=legacy``::
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zfs create -o mountpoint=legacy rpool/alma/root
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mount -t zfs rpool/alma/root /mnt/
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zfs create -o mountpoint=legacy rpool/alma/home
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mkdir /mnt/home
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mount -t zfs -o zfsutil rpool/alma/home /mnt/home
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zfs create -o mountpoint=legacy rpool/alma/var
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zfs create -o mountpoint=legacy rpool/alma/var/lib
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zfs create -o mountpoint=legacy rpool/alma/var/log
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zfs create -o mountpoint=none bpool/alma
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zfs create -o mountpoint=legacy bpool/alma/root
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mkdir /mnt/boot
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mount -t zfs bpool/alma/root /mnt/boot
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#. zfs-dracut requires root dataset to have a mountpoint
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other than legacy::
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umount -Rl /mnt
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zfs set canmount=noauto rpool/alma/root
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zfs set mountpoint=/ rpool/alma/root
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mount -t zfs rpool/alma/root /mnt
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mount -t zfs rpool/alma/home /mnt/home
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mount -t zfs bpool/alma/root /mnt/boot
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#. Format and mount ESP::
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for i in ${DISK}; do
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mkfs.vfat -n EFI ${i}-part1
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mkdir -p /mnt/boot/efis/${i##*/}-part1
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mount -t vfat ${i}-part1 /mnt/boot/efis/${i##*/}-part1
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done
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mkdir -p /mnt/boot/efi
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mount -t vfat $(echo $DISK | cut -f1 -d\ )-part1 /mnt/boot/efi
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#. Install packages::
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dnf --installroot=/mnt --releasever=$(source /etc/os-release ; echo $VERSION_ID) -y install \
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@core grub2-efi-x64 grub2-pc-modules grub2-efi-x64-modules shim-x64 efibootmgr kernel
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dnf --installroot=/mnt --releasever=$(source /etc/os-release ; echo $VERSION_ID) -y install \
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https://zfsonlinux.org/epel/zfs-release-2-2$(rpm --eval "%{dist}").noarch.rpm
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dnf config-manager --installroot=/mnt --disable zfs
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dnf config-manager --installroot=/mnt --enable zfs-kmod
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dnf --installroot=/mnt --releasever=$(source /etc/os-release ; echo $VERSION_ID) \
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-y install zfs zfs-dracut
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