X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=blobdiff_plain;f=fai%2Fconfig%2Fhooks%2Fpartition.DEFAULT;h=b961e62ed2d7f98055204bfd1b0bd42066960fa8;hp=dc328c0c44fd0ff90009d8e65e7a032025f20d3d;hb=45a2a286083772abc0688e663a6ecc68af0a8d0e;hpb=c8bd51084bc4d90b9653d521e7cb05e17e417d97 diff --git a/fai/config/hooks/partition.DEFAULT b/fai/config/hooks/partition.DEFAULT index dc328c0..b961e62 100755 --- a/fai/config/hooks/partition.DEFAULT +++ b/fai/config/hooks/partition.DEFAULT @@ -1,45 +1,128 @@ #!/bin/bash -x +# Copyright (C) 2016 Ian Kelling + +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. set -eE -o pipefail trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR +# for calling outside of FAI: +# # need to redep and set that location so that we get luks keys +# export FAI=/srv/fai/config +# fai-redep +# source /b/fai/fai-wrapper +# - set any appropriate classes with: fai-setclass OPT1... which sets CLASS_OPT1=true... +# or run eval-fai-classfile FILE +# +# OPTIONS: +# +# environment variables: +# +# HOSTNAME: if frodo, we exclude 2 devices from the /boot array, which +# the bios does not see. if demohost, we set the luks password to just +# 'x'. +# +# SPECIAL_DISK: For use outside of fai. A base disk name like +# /dev/sdk. If set, we just cryptsetup and partition this one disk then +# exit. This is useful for partitioning a disk in preparation to replace +# a failed or failing disk from a raid10 array. +# +# classes: +# +# REPARTITION: forces repartitioning even if we detect the proper amount +# of partitions already exist. +# +# ROTATIONAL: forces to install onto hdds instead of sdds. normally sdds +# are chosen if they exist. +# +# PARTITION_PROMPT: command line prompt before partitioning +# +# RAID0: forces raid0 filesystem. Normally with 4+ devices, we use +# raid10. +# RAID1: forces raid1 filesystem. + +if [[ $SPECIAL_DISK ]]; then + export CLASS_REPARTITION=true +fi + # # fai's setup-storage won't do btrfs on luks, # # so we do it ourself :) +# inspiration taken from files in fai-setup-storage package + +# if we are not running in fai, skiptask won't be defined, so carry on. +skiptask partition || ! type skiptask + +if ! type -p devbyid; then + for d in $FAI/distro-install-common \ + /a/bin/fai/fai/config/distro-install-common $FAI $PWD; do + [[ -d $d ]] || continue + if [[ -e $d/devbyid ]]; then + devbyid=$d/devbyid + devbyid() { $devbyid "$@"; } + break + fi + done + if [[ ! $devbyid ]]; then + echo "$0: error: failed to find devbyid script" >&2 + exit 1 + fi +fi + -skiptask partition || ! type skiptask # for running not in fai #### begin configuration rootn=1 swapn=2 bootn=3 -bios_grubn=4 -boot_mib=1500 +# ext partition so grub can write persistent variables, +# so it can do a one time boot. grub can't write to +# btrfs or any cow fs because it's more +# more complicated to do and they don't want to. +grub_extn=4 +# bios boot partition, +# https://wiki.archlinux.org/index.php/GRUB +bios_grubn=5 +lastn=$bios_grubn + ##### end configuration -add-part() { - local d ret - if [[ $# == 1 ]]; then - d=$dev - part=$1 - else - d=$1 - part=$2 - fi - if [[ $d == /dev/disk/by-id/* ]]; then - ret=$d-part$part - else - ret=$d$part - fi - echo $ret +add-part() { # add partition suffix to $dev + local d ret + if [[ $# == 1 ]]; then + d=$dev + part=$1 + else + d=$1 + part=$2 + fi + if [[ $d == /dev/disk/by-id/* ]]; then + ret=$d-part$part + else + ret=$d$part + fi + echo $ret } bootdev() { add-part $@ $bootn; } rootdev() { add-part $@ $rootn; } swapdev() { add-part $@ $swapn; } +grub_extdev() { add-part $@ $grub_extn; } bios_grubdev() { add-part $@ $bios_grubn; } crypt-dev() { echo /dev/mapper/crypt_dev_${1##*/}; } @@ -49,309 +132,465 @@ swap-cryptdev() { crypt-dev $(swapdev $@); } root-cryptname() { crypt-name $(rootdev $@); } swap-cryptname() { crypt-name $(swapdev $@); } - ##### end function defs if ifclass REPARTITION;then - partition=true # force a full wipe + partition=true # force a full wipe else - partition=false # change to true to force a full wipe + partition=false # change to true to force a full wipe fi -lastn=$bios_grubn +## ignore disks that are mounted, eg when running from fai-cd +declare -A disk_excludes +while read -r l; do + eval "$l" + if [[ ! $PKNAME ]]; then + PKNAME="$KNAME" + fi + if [[ $MOUNTPOINT ]]; then + disk_excludes[$PKNAME]=true + fi +done < <(lsblk -nP -o KNAME,MOUNTPOINT,PKNAME) hdds=() ssds=() cd /sys/block for disk in [sv]d[a-z]; do - case $(cat $disk/queue/rotational) in - 0) ssds+=(/dev/$disk) ;; - 1) hdds+=(/dev/$disk) ;; - *) echo "$0: error: unknown /sys/block/$disk/queue/rotational: \ + if [[ ${disk_excludes[$disk]} ]]; then + continue + fi + case $(cat $disk/queue/rotational) in + 0) ssds+=(/dev/$disk) ;; + 1) hdds+=(/dev/$disk) ;; + *) echo "$0: error: unknown /sys/block/$disk/queue/rotational: \ $(cat $disk/queue/rotational)"; exit 1 ;; - esac + esac done -# install all ssds, or if there are none, all hdds -if (( ${#ssds[@]} > 0 )); then - short_devs=( ${ssds[@]} ) +# install all ssds, or if there are none, all hdds. +# Note, usb flash disks are seen as rotational, which is +# very odd, but convenient for ignoring them here. +# TODO: find a reliable way to ignore them. +if ! ifclass ROTATIONAL && (( ${#ssds[@]} > 0 )); then + short_devs=( ${ssds[@]} ) else - short_devs=( ${hdds[@]} ) + short_devs=( ${hdds[@]} ) fi # check if the partitions exist have the right filesystems #blkid="$(blkid -s TYPE)" for dev in ${short_devs[@]}; do - ! $partition || break - y=$(readlink -f $dev) - x=($y[0-9]) - [[ ${#x[@]} == "${lastn}" ]] || partition=true - for (( i=1; i <= lastn; i++ )); do - [[ -e ${dev}$i ]] || partition=true - done - # On one system, blkid is missing some partitions. - # maybe we need a flag, like FUZZY_BLKID or something, so we - # can check that at least some exist. - # for x in "`rootdev`: TYPE=\"crypto_LUKS\"" "`bootdev`: TYPE=\"btrfs\""; do - # echo "$blkid" | grep -Fx "$x" &>/dev/null || partition=true - # done + if $partition; then break; fi + y=$(readlink -f $dev) + arr=($y[0-9]) + [[ ${#arr[@]} == "$lastn" ]] || partition=true + for (( i=1; i <= lastn; i++ )); do + [[ -e ${dev}$i ]] || partition=true + done + # On one system, blkid is missing some partitions. + # maybe we need a flag, like FUZZY_BLKID or something, so we + # can check that at least some exist. + # for x in "`rootdev`: TYPE=\"crypto_LUKS\"" "`bootdev`: TYPE=\"btrfs\""; do + # echo "$blkid" | grep -Fx "$x" &>/dev/null || partition=true + # done done if $partition && ifclass PARTITION_PROMPT; then - echo "Press any key except ctrl-c to continue and partition these drives:" - echo " ${short_devs[@]}" - read + echo "Press any key except ctrl-c to continue and partition these drives:" + echo " ${short_devs[*]}" + read -r fi devs=() shopt -s extglob for short_dev in ${short_devs[@]}; do - devs+=($(devbyid $short_dev)) + devs+=($(devbyid $short_dev)) done +if [[ ! ${devs[0]} ]]; then + echo "$0: error: failed to detect devs" >&2 + exit 1 +fi - - +boot_space=0 +first=false boot_devs=() for dev in ${devs[@]}; do - if ifclass frodo; then - # I ran into a machine where the bios doesn't know about some disks, - # so 1st stage of grub also doesn't know about them. - # Also, grub does not support mounting degraded btrfs as far as - # I can tell with some googling. - # From within an arch install env, I could detect them by noting - # their partitions were mixed with the next disk in /dev/disk/by-path, - # and I have mixed model disks, and I could see the 8 models which showed - # up in the bios, and thus see which 2 models were missing. - # hdparm -I /dev/sdh will give model info in linux. - # However, in fai on jessie, /dev/disk/by-path dir doesn't exist, - # and I don't see another way, so I'm hardcoding them. - # We still put grub on them and partition them the same, for uniformity - # and in case they get moved to a system that can recognize them, - # we just exclude them from the boot filesystem. - cd /dev/disk/by-id/ - bad_disk=false - for id in ata-TOSHIBA_MD04ACA500_8539K4TQFS9A \ - ata-TOSHIBA_MD04ACA500_Y5IFK6IJFS9A; do - if [[ $(readlink -f $id) == "$(readlink -f $dev)" ]]; then - bad_disk=true - break - fi - done - $bad_disk || boot_devs+=(`bootdev`) - else - boot_devs+=(`bootdev`) - fi + if ifclass frodo; then + # I ran into a machine where the bios doesn't know about some disks, + # so 1st stage of grub also doesn't know about them. + # Also, grub does not support mounting degraded btrfs as far as + # I can tell with some googling. + # From within an arch install env, I could detect them by noting + # their partitions were mixed with the next disk in /dev/disk/by-path, + # and I have mixed model disks, and I could see the 8 models which showed + # up in the bios, and thus see which 2 models were missing. + # hdparm -I /dev/sdh will give model info in linux. + # However, in fai on jessie, /dev/disk/by-path dir doesn't exist, + # and I don't see another way, so I'm hardcoding them. + # We still put grub on them and partition them the same, for uniformity + # and in case they get moved to a system that can recognize them, + # we just exclude them from the boot filesystem. + cd /dev/disk/by-id/ + bad_disk=false + for id in ata-TOSHIBA_MD04ACA500_8539K4TQFS9A \ + ata-TOSHIBA_MD04ACA500_Y5IFK6IJFS9A; do + if [[ $(readlink -f $id) == "$(readlink -f $dev)" ]]; then + bad_disk=true + break + fi + done + $bad_disk || boot_devs+=($(bootdev)) + else + boot_space=$(( boot_space + $(parted -m $dev unit MiB print | \ + sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1)) + boot_devs+=($(bootdev)) + fi + if [[ $boot_devs && $first ]]; then + first_grub_extdev=$(grub_extdev) + first=false + fi done -if [[ ! $DISTRO ]]; then - if ifclass STABLE; then - DISTRO=debianstable - else - DISTRO=debiantesting - fi +if ifclass RAID0 || (( ${#boot_devs[@]} == 1 )); then + raid_level=0 +elif ifclass RAID1 || (( ${#boot_devs[@]} <= 3 )); then + raid_level=1 +else + raid_level=10 fi +### Begin calculate boot partition space +# due to raid duplication +case $raid_level in + 1*) boot_space=$(( boot_space / 2 )) ;; +esac +if (( boot_space > 60000 )); then + # this is larger than needed for several /boot subvols, + # becuase I keep a minimal debian install on it for + # recovery needs and for doing pxe-kexec. + boot_mib=10000 +elif (( boot_space > 30000 )); then + boot_mib=$(( 5000 + (boot_space - 30000) / 2 )) +else + # Small vms don't have room for /boot recovery. With 3 kernels + # installed, i'm using 132M on t8, so this seems like plenty of + # room. note: rhel 8 recomments 1g for /boot. + boot_mib=500 + # +fi +case $raid_level in + 1*) boot_mib=$(( boot_mib * 2 )) ;; +esac +### end calculate boot partition space -case ${#boot_devs[@]} in - # need double the space if we are raid 10, and then - # might as well give some extra overhead. - [4-9]*|[1-3]?*) boot_mib=$((boot_mib * 3)) ;; -esac + +if [[ ! $DISTRO ]]; then + if ifclass VOL_STRETCH_BOOTSTRAP; then + DISTRO=debianstretch_bootstrap + elif ifclass VOL_STRETCH; then + DISTRO=debianstretch + elif ifclass VOL_BUSTER; then + DISTRO=debianbuster + elif ifclass VOL_TESTING; then + DISTRO=debiantesting + elif ifclass VOL_XENIAL; then + DISTRO=ubuntuxenial + elif ifclass VOL_BELENOS; then + DISTRO=trisquelbelenos + elif ifclass VOL_FLIDAS; then + DISTRO=trisquelflidas + elif ifclass VOL_ETIONA; then + DISTRO=trisqueletiona + else + echo "PARTITIONER ERROR: no distro class/var set" >&2 + exit 1 + fi +fi +first_boot_dev=${boot_devs[0]} bpart() { # btrfs a partition - case ${#@} in - [1-3]) mkfs.btrfs -f $@ ;; - [4-9]*|[1-3]?*) mkfs.btrfs -f -m raid10 -d raid10 $@ ;; - esac + case $raid_level in + 0) mkfs.btrfs -f $@ ;; + 1) mkfs.btrfs -f -m raid1 -d raid1 $@ ;; + 10) mkfs.btrfs -f -m raid10 -d raid10 $@ ;; + esac } -first_boot_dev=${boot_devs[0]} -# keyfiles generated like: -# head -c 2048 /dev/urandom | od | s dd of=/q/root/luks/host-demohost -luks_dir=${LUKS_DIR:-/var/lib/fai/config/distro-install-common/luks} +# see README for docs about how to create these +luks_dir=$FAI/distro-install-common/luks + -if [[ ! -e $luks_dir/host-$HOSTNAME ]]; then - echo "$0: error: no key for hostname at $luks_dir/host-$HOSTNAME" >&2 +luks_file=$luks_dir/host-$HOSTNAME +if [[ ! -e $luks_file ]]; then + hostkeys=($luks_dir/host-*) + # if there is only one key, we might be deploying somewhere + # where dhcp doesnt give us a proper hostname, so use that. + if [[ ${#hostkeys[@]} == 1 && -e ${hostkeys[0]} ]]; then + luks_file=${hostkeys[0]} + else + echo "$0: error: no key for hostname at $luks_file" >&2 exit 1 + fi fi -if ifclass tp; then - lukspw=$(cat $luks_dir/traci) +# # note, corresponding changes in /b/ds/keyscript-{on,off} +if ifclass tpnew; then + lukspw=$(cat $luks_dir/traci) +elif ifclass ziva; then + lukspw=$(cat $luks_dir/ziva) +elif ifclass demohost; then + lukspw=x +elif [[ -e $luks_dir/$HOSTNAME ]]; then + lukspw=$(cat $luks_dir/$HOSTNAME) else - lukspw=$(cat $luks_dir/ian) -fi -if ifclass demohost; then - lukspw=x + lukspw=$(cat $luks_dir/iank) fi first_root_crypt=$(root-cryptdev ${devs[0]}) -bios_grubn=4 # 1.5 x based on https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html#sect-custom-partitioning-x86 swap_mib=$(( $(grep ^MemTotal: /proc/meminfo | \ - awk '{print $2}') * 3/(${#devs[@]} * 2 ) / 1024 )) + awk '{print $2}') * 3/(${#devs[@]} * 2 ) / 1024 )) mkdir -p /tmp/fai root_devs=() for dev in ${devs[@]}; do - root_devs+=(`rootdev`) + root_devs+=($(rootdev)) done shopt -s nullglob if $partition; then + + ### begin wipefs + if [[ ! $SPECIAL_DISK ]]; then for dev in ${devs[@]}; do - for x in $dev[0-9]; do - count_down=10 - # wipefs has failed, manual run works, google suggests timing issue - while ! wipefs -a $x; do - sleep 2 - count_down=$((count_down - 1)) - (( count_down > 0 )) || exit 1 - done + # if we repartition to the same as an old partition, + # we don't want any old fses hanging around. + for (( i=1; i <= lastn; i++ )); do + x=$(add-part $dev $i) + [[ -e $x ]] || continue + count_down=10 + # wipefs has failed, manual run works, google suggests timing issue + while ! wipefs -a $x; do + sleep 2 + count_down=$((count_down - 1)) + (( count_down > 0 )) || exit 1 done + done done - for dev in ${devs[@]}; do - # parted will round up the disk size. Do -1 so we can have - # fully 1MiB unit partitions for easy resizing of the last partition. - # Otherwise we would pass in -0 for the end argument for the last partition. - # - # parted print error output is expected. example: - # Error: /dev/vda: unrecognised disk label - disk_mib=$(( $(parted -m $dev unit MiB print | \ - sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1)) - root_end=$(( disk_mib - swap_mib - boot_mib / ${#boot_devs[@]} )) - swap_end=$(( root_end + swap_mib)) - - parted -s $dev mklabel gpt - # gpt ubuntu cloud image uses ~4. fai uses 1 MiB. - # I read something in the parted manual saying cheap flash media - # likes to start at 4. - # MiB because parted complains about alignment otherwise. - pcmd="parted -a optimal -s -- $dev" - $pcmd mkpart primary "ext3" 4MiB ${root_end}MiB - $pcmd mkpart primary "linux-swap" ${root_end}MiB ${swap_end}MiB - $pcmd mkpart primary "" ${swap_end}MiB ${disk_mib}MiB - $pcmd mkpart primary "" 1MiB 4MiB - $pcmd set $bios_grubn bios_grub on - $pcmd set $bootn boot on # generally not needed on modern systems - # the mkfs failed before on a vm, which prompted me to add - # sleep .1 - # then failed on a physical machine - # with: - # Device /dev/disk/by-id/foo doesn't exist or access denied, - # so here we wait. - secs=0 - while [[ ! -e `rootdev` ]] && (( secs < 10 )); do - sleep 1 - secs=$((secs +1)) - done - yes YES | cryptsetup luksFormat `rootdev` $luks_dir/host-$HOSTNAME \ - -c aes-cbc-essiv:sha256 -s 256 || [[ $? == 141 ]] - yes "$lukspw" | \ - cryptsetup luksAddKey --key-file $luks_dir/host-$HOSTNAME \ - `rootdev` || [[ $? == 141 ]] - # background: Keyfile and password are treated just - # like 2 ways to input a passphrase, so we don't actually need to have - # different contents of keyfile and passphrase, but it makes some - # security sense to a really big randomly generated passphrase - # as much as possible, so we have both. - # - # This would remove the keyfile. - # yes 'test' | cryptsetup luksRemoveKey /dev/... \ - # /key/file || [[ $? == 141 ]] - - cryptsetup luksOpen `rootdev` `root-cryptname` \ - --key-file $luks_dir/host-$HOSTNAME + fi + ### end wipefs + + for dev in ${devs[@]}; do + if [[ $SPECIAL_DISK ]]; then + dev=$(devbyid $SPECIAL_DISK) + fi + + # parted will round up the disk size. Do -1 so we can have + # fully 1MiB unit partitions for easy resizing of the last partition. + # Otherwise we would pass in -0 for the end argument for the last partition. + # + # Note: parted print error output is expected. example: + # Error: /dev/vda: unrecognised disk label + disk_mib=$(( $(parted -m $dev unit MiB print | \ + sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1)) + root_end=$(( disk_mib - swap_mib - boot_mib / ${#boot_devs[@]} )) + swap_end=$(( root_end + swap_mib)) + + parted -s $dev mklabel gpt + # MiB because parted complains about alignment otherwise. + pcmd="parted -a optimal -s -- $dev" + $pcmd mkpart primary ext3 12MiB ${root_end}MiB + # without naming, systemd gives us misc errors like: + # dev-disk-by\x2dpartlabel-primary.device: Dev dev-disk-by\x2dpartlabel-primary.device appeared twice + $pcmd name $rootn root + # normally a swap is type "linux-swap", but this is encrypted swap. using that + # label will confuse systemd. + $pcmd mkpart primary "" ${root_end}MiB ${swap_end}MiB + $pcmd name $swapn swap + $pcmd mkpart primary "" ${swap_end}MiB ${disk_mib}MiB + $pcmd name $bootn boot + # i only need a few k, but googling min size, + # I found someone saying that gparted required + # required at least 8 because of their hard drive cylinder size. + # And 8 is still very tiny. + $pcmd mkpart primary "ext2" 4MiB 12MiB + $pcmd name $grub_extn grubext + # gpt ubuntu cloud image uses ~4 mb for this partition. fai uses 1 MiB. + # so, I use 3, whatever. + # note: parted manual saying cheap flash media + # should to start at 4. + $pcmd mkpart primary "" 1MiB 4MiB + $pcmd name $bios_grubn biosgrub + $pcmd set $bios_grubn bios_grub on + $pcmd set $bootn boot on # generally not needed on modern systems + # the mkfs failed before on a vm, which prompted me to add + # sleep .1 + # then it failed again on a physical machine + # with: + # Device /dev/disk/by-id/foo doesn't exist or access denied, + # so I added a wait until it existed. + # Then I added the mkfs.ext2, which claimed to succeed, + # but then couldn't be found upon reboot. In that case we didn't + # wait at all. So I've added a 3 second minimum wait. + sleep 3 + secs=0 + while [[ ! -e $(rootdev) ]] && (( secs < 10 )); do + sleep 1 + secs=$((secs +1)) done - ls -la /dev/btrfs-control - sleep 1 - bpart $(for dev in ${devs[@]}; do root-cryptdev; done) - bpart ${boot_devs[@]} + # Holds just a single file, rarely written, so + # use ext2, like was often used for the /boot partition. + # This exists because grub can only persist data to a non-cow fs. + # And we use persisting a var in grub to do a one time boot. + # We could pass the data on the kernel command line and persist it + # to grubenv after booting, but that relies on the boot always succeeding. + # This is just a bit more robust, and it could work for booting + # into ipxe which can't persist data, if we ever got that working. + mkfs.ext2 $(grub_extdev) + # when we move to newer than trisquel 8, we can remove + # --type luks1. We can also check on cryptsetup --help | less /compil + # to see about the other settings. Default in debian 9 is luks2. + # You can convert from luks2 to luks 1 by adding a temporary key: + # cryptsetup luksAddKey --pbkdf pbkdf2 + # then remove the new format keys with cryptsetup luksRemoveKey + # then cryptsetup convert DEV --type luks1, then readd old keys and remove temp. + yes YES | cryptsetup luksFormat $(rootdev) $luks_file \ + --type luks1 -c aes-cbc-essiv:sha256 -s 256 || [[ $? == 141 ]] + yes "$lukspw" | \ + cryptsetup luksAddKey --key-file $luks_file \ + $(rootdev) || [[ $? == 141 ]] + # background: Keyfile and password are treated just + # like 2 ways to input a passphrase, so we don't actually need to have + # different contents of keyfile and passphrase, but it makes some + # security sense to a really big randomly generated passphrase + # as much as possible, so we have both. + # + # This would remove the keyfile. + # yes 'test' | cryptsetup luksRemoveKey /dev/... \ + # /key/file || [[ $? == 141 ]] + + cryptsetup luksOpen $(rootdev) $(root-cryptname) \ + --key-file $luks_file + + if [[ $SPECIAL_DISK ]]; then + exit 0 + fi + done + ls -la /dev/btrfs-control # this was probably for debugging... + sleep 1 + bpart $(for dev in ${devs[@]}; do root-cryptdev; done) + bpart ${boot_devs[@]} else - for dev in ${devs[@]}; do - cryptsetup luksOpen `rootdev` `root-cryptname` \ - --key-file $luks_dir/host-$HOSTNAME - done - sleep 1 + for dev in ${devs[@]}; do + if [[ -e /a/bin/fai/fai-wrapper && -e /dev/mapper/$(root-cryptname) ]]; then + continue + fi + cryptsetup luksOpen $(rootdev) $(root-cryptname) \ + --key-file $luks_file + done + sleep 1 fi -mount -o subvolid=0 $first_root_crypt /mnt -# systemd creates subvolumes we want to delete. -s=($(btrfs subvolume list --sort=-path /mnt | + +if [[ $DISTRO != debianstretch_bootstrap ]]; then + # bootstrap distro doesn't use separate encrypted root. + mount -o subvolid=0 $first_root_crypt /mnt + # systemd creates subvolumes we want to delete. + s=($(btrfs subvolume list --sort=-path /mnt | sed -rn "s#^.*path\s*(root_$DISTRO/\S+)\s*\$#\1#p")) -for subvol in ${s[@]}; do btrfs subvolume delete /mnt/$subvol; done -btrfs subvolume set-default 0 /mnt -[[ ! -e /mnt/root_$DISTRO ]] || btrfs subvolume delete /mnt/root_$DISTRO + for subvol in ${s[@]}; do btrfs subvolume delete /mnt/$subvol; done + btrfs subvolume set-default 0 /mnt + [[ ! -e /mnt/root_$DISTRO ]] || btrfs subvolume delete /mnt/root_$DISTRO -## create subvols ## -cd /mnt -btrfs subvolume create root_$DISTRO -[[ -e q ]] || btrfs subvolume create q -chown root:1000 q - -mkdir -p /mnt/root_$DISTRO/boot -for x in root/a q/a; do - mkdir -p $x - chown 1000:1000 $x - chmod 755 $x -done -# could set default like this, but no reason to. -# btrfs subvolume set-default \ + ## create subvols ## + cd /mnt + + btrfs subvolume create root_$DISTRO + + # could set default subvol like this, but no reason to. + # btrfs subvolume set-default \ # $(btrfs subvolume list . | grep "root_$DISTRO$" | awk '{print $2}') . -chattr -Rf +C root_$DISTRO -cd / -umount /mnt + + # no cow on the root filesystem. it's setup is fully scripted, + # if it's messed up, we will just recreated it, + # and we can get better perf with this. + # I can't remember exactly why, but this is preferable to mounting with + # -o nodatacow, I think because subvolumes inherit that. + chattr -Rf +C root_$DISTRO + cd / + umount /mnt +fi + mount -o subvolid=0 $first_boot_dev /mnt cd /mnt -btrfs subvolume set-default 0 /mnt -[[ ! -e /mnt/boot_$DISTRO ]] || btrfs subvolume delete /mnt/boot_$DISTRO -btrfs subvolume create boot_$DISTRO +btrfs subvolume set-default 0 /mnt # already default, just ensuring it. + +# for libreboot systems. grub2 only reads from subvolid=0 +mkdir -p /mnt/grub2 +cp $FAI/distro-install-common/libreboot_grub.cfg /mnt/grub2 + +if [[ $DISTRO == debianstretch_bootstrap ]]; then + # this is just convenience for the libreboot_grub config + # so we can glob the other ones easier. + boot_vol=$DISTRO +else + boot_vol=boot_$DISTRO +fi +[[ ! -e /mnt/$boot_vol ]] || btrfs subvolume delete /mnt/$boot_vol +btrfs subvolume create $boot_vol cd / umount /mnt ## end create subvols ## +dev=${boot_devs[0]} +mount $first_grub_extdev /mnt +grub-editenv /mnt/grubenv set did_fai_check=true +grub-editenv /mnt/grubenv set last_boot=/$boot_vol +umount /mnt - -cat > /tmp/fai/fstab < /tmp/fai/fstab <> /tmp/fai/fstab <<'EOF' -UUID=3f7b31cd-f299-40b4-a86b-7604282e2715 /i btrfs noatime 0 2 + cat >/tmp/fai/disk_var.sh < /tmp/fai/fstab <>/tmp/fai/crypttab <> /tmp/fai/fstab </tmp/fai/disk_var.sh </tmp/fai/disk_var.sh <