testing
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debianzfs.sh
Normal file → Executable file
208
debianzfs.sh
Normal file → Executable file
@ -3,23 +3,152 @@
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# Script is based off official guide: see "Debian Bullseye Root on ZFS"
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# https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Bullseye%20Root%20on%20ZFS.html
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# Settings
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#################
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### Functions ###
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#################
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function usage () {
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echo "Usage: ./$(basename "$0") [-mpP] /dev/sdX"
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}
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function disk_check () {
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DISK_TYPE=$(file "$1" | awk '{ print $2$3 }')
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if [ "$DISK_TYPE" != "blockspecial" ]; then
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echo "ERROR: Disk '$1' is not a block device"
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exit 1;
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fi
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}
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function password_prompt () {
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unset PASSWORD_PROMPT_RESULT
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while true; do
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read -r -s -p "${1}: " password
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echo ''
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read -r -s -p "${1} (confirm): " password_confirm
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echo ''
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if [ "$password" == "$password_confirm" ]; then
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if [ -z "$password" ]; then
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echo "Password can not be empty, try again."
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else
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break
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fi
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else
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echo "Passwords did not match, try again."
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fi
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done
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PASSWORD_PROMPT_RESULT="$password"
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export PASSWORD_PROMPT_RESULT
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}
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function disk_format () {
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sgdisk -n2:1M:+512M -t2:EF00 "$1"
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sgdisk -n3:0:+1G -t3:BF01 "$1"
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sgdisk -n4:0:0 -t4:BF00 "$1"
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}
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function create_boot_pool () {
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zpool create -f \
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-o ashift=12 \
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-o autotrim=on -d \
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-o cachefile=/etc/zfs/zpool.cache \
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-o feature@async_destroy=enabled \
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-o feature@bookmarks=enabled \
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-o feature@embedded_data=enabled \
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-o feature@empty_bpobj=enabled \
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-o feature@enabled_txg=enabled \
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-o feature@extensible_dataset=enabled \
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-o feature@filesystem_limits=enabled \
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-o feature@hole_birth=enabled \
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-o feature@large_blocks=enabled \
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-o feature@livelist=enabled \
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-o feature@lz4_compress=enabled \
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-o feature@spacemap_histogram=enabled \
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-o feature@zpool_checkpoint=enabled \
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-O devices=off \
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-O acltype=posixacl -O xattr=sa \
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-O compression=lz4 \
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-O normalization=formD \
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-O relatime=on \
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-O canmount=off -O mountpoint=/boot -R "$1" \
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bpool "$2"
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}
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function create_root_pool () {
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zpool create -f \
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-o ashift=12 \
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-o autotrim=on \
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-O encryption=on -O keylocation=prompt -O keyformat=passphrase \
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-O acltype=posixacl -O xattr=sa -O dnodesize=auto \
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-O compression=lz4 \
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-O normalization=formD \
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-O relatime=on \
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-O canmount=off -O mountpoint=/ -R "$1" \
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rpool "$2"
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}
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################
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### Settings ###
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################
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# Static
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export DEBIAN_FRONTEND=noninteractive
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DISK=$1
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ZFSHOST=$2
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[ -z "$ZFSHOST" ] && ZFSHOST="debianzfs"
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CODENAME="bullseye"
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ZFSROOT="/mnt"
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# Options
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while getopts ':m:p:P:d' OPTION; do
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case "$OPTION" in
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m) MIRROR="$OPTARG";;
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p) ROOTPW="$OPTARG";;
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P) RPOOLPW="$OPTARG";;
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?)
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usage
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exit 1
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;;
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esac
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done
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shift "$((OPTIND -1))"
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# Parameters
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DISK=$1
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ZFSHOST=$2
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# Verify variables
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[ -z "$ZFSHOST" ] && ZFSHOST="debianzfs"
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if [ -z "$DISK" ]; then
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echo "FATAL: DISK not set"
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usage
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exit 1
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fi
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if [ -z "$ROOTPW" ]; then
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password_prompt "Root Passphrase"
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ROOTPW="$PASSWORD_PROMPT_RESULT"
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unset PASSWORD_PROMPT_RESULT
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fi
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if [ -z "$RPOOLPW" ]; then
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password_prompt "ZFS Encryption Passphrase"
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RPOOLPW="$PASSWORD_PROMPT_RESULT"
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unset PASSWORD_PROMPT_RESULT
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fi
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if [ "$DEBUG" == "true" ]; then
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echo "DISK=${DISK}"
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echo "MIRROR=${MIRROR}"
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echo "ZFSHOST=${ZFSHOST}"
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echo "CODENAME=${CODENAME}"
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echo "ZFSROOT=${ZFSROOT}"
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echo "ROOTPW=${ROOTPW}"
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echo "RPOOLPW=${RPOOLPW}"
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fi
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# Display commands
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set -x
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# Is the DISK path a block device?
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DISK_TYPE=$(file "${DISK}" | awk '{ print $2$3 }')
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if [ "$DISK_TYPE" != "blockspecial" ]; then
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echo "ERROR: Disk '${DISK}' is not a block device"
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exit 1;
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fi
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# Are the DISK paths block devices?
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disk_check "$DISK"
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[ -n "$MIRROR" ] && disk_check "$MIRROR"
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###############################################
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### Step 1: Prepare The Install Environment ###
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@ -48,56 +177,23 @@ apt-get install -y debootstrap gdisk pwgen zfsutils-linux
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swapoff --all
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# 3. Partition your disk(s)
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# Run this for UEFI booting (for use now or in the future)
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sgdisk -n2:1M:+512M -t2:EF00 "$DISK"
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# Run this for the boot pool
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sgdisk -n3:0:+1G -t3:BF01 "$DISK"
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# Unencrypted or ZFS native encryption
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sgdisk -n4:0:0 -t4:BF00 "$DISK"
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# UEFI booting + boot pool + ZFS native encryption
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disk_format "$DISK"
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[ -n "$MIRROR" ] && disk_format "$MIRROR"
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# 4. Create the boot pool
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zpool create -f \
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-o ashift=12 \
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-o autotrim=on -d \
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-o cachefile=/etc/zfs/zpool.cache \
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-o feature@async_destroy=enabled \
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-o feature@bookmarks=enabled \
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-o feature@embedded_data=enabled \
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-o feature@empty_bpobj=enabled \
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-o feature@enabled_txg=enabled \
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-o feature@extensible_dataset=enabled \
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-o feature@filesystem_limits=enabled \
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-o feature@hole_birth=enabled \
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-o feature@large_blocks=enabled \
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-o feature@livelist=enabled \
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-o feature@lz4_compress=enabled \
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-o feature@spacemap_histogram=enabled \
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-o feature@zpool_checkpoint=enabled \
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-O devices=off \
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-O acltype=posixacl -O xattr=sa \
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-O compression=lz4 \
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-O normalization=formD \
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-O relatime=on \
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-O canmount=off -O mountpoint=/boot -R "$ZFSROOT" \
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bpool "${DISK}3"
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if [ -z "$MIRROR" ]; then
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create_boot_pool "$ZFSROOT" "${DISK}3 ${MIRROR}3"
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else
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create_boot_pool "$ZFSROOT" "mirror ${DISK}3 ${MIRROR}3"
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fi
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# 5. Create the root pool
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# ZFS native encryption (with a random password)
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RPOOLPW="$(pwgen -s 16 1)"
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echo "$RPOOLPW" | \
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zpool create -f \
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-o ashift=12 \
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-o autotrim=on \
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-O encryption=on -O keylocation=prompt -O keyformat=passphrase \
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-O acltype=posixacl -O xattr=sa -O dnodesize=auto \
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-O compression=lz4 \
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-O normalization=formD \
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-O relatime=on \
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-O canmount=off -O mountpoint=/ -R "$ZFSROOT" \
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rpool "${DISK}4"
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unset RPOOLPW
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if [ -z "$MIRROR" ]; then
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create_root_pool "$ZFSROOT" "${DISK}4"
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else
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create_root_pool "$ZFSROOT" "mirror ${DISK}4 ${MIRROR}4"
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fi
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###################################
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### Step 3: System Installation ###
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