From: Ian Kelling Date: Sat, 6 Apr 2019 16:11:46 +0000 (-0400) Subject: fix recovery in a pxe booted sysinfo env related bugs X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=commitdiff_plain;h=debe67641f661b4e47a72cb27bb2957cd44c4bed fix recovery in a pxe booted sysinfo env related bugs --- diff --git a/fai-wrapper b/fai-wrapper index 04625fd..e54e2d5 100644 --- a/fai-wrapper +++ b/fai-wrapper @@ -20,25 +20,40 @@ # paths specific to Ian's machine. # to set fai classes, export CLASS_CLASSNAME=true ifclass() { - local var=${1/#/CLASS_} - [[ $HOSTNAME == $1 || ${!var} ]] + local var=${1/#/CLASS_} + [[ $HOSTNAME == $1 || ${!var} ]] } fai-setclass() { - for class in "$@"; do - # export class vars with CLASS_ in front to avoid name collisions. - classes+=" $class" - export CLASS_$class=true - done - classes="${classes# }" - export classes + for class in "$@"; do + # export class vars with CLASS_ in front to avoid name collisions. + classes+=" $class" + export CLASS_$class=true + done + classes="${classes# }" + export classes } eval-fai-classfile() { - file=$1 - fai-setclass $(bash -l $file) + file=$1 + if [[ ! -s $file ]]; then + echo "$0: probably an error: eval-fai-classfile no such file: $file" + return 0 + fi + fai-setclass $(bash -l $file) } export -f ifclass classes=DEFAULT # used by fcopy export CLASS_DEFAULT=true -eval-fai-classfile /a/bin/fai/fai/config/class/50-host-classes -export FAI_ROOT=/ -export FAI=/a/bin/fai/fai/config +if [[ ! -d $FAI_ROOT ]]; then + export FAI_ROOT=/ +fi +if [[ ! -d $FAI ]]; then + if [[ -d /a/bin/fai/fai/config ]]; then + export FAI=/a/bin/fai/fai/config + else + echo "$0: error: could not find directory to set for FAI. currently FAI=$FAI" + return 1 + fi +fi + +eval-fai-classfile $FAI/class/50-host-classes +eval-fai-classfile $FAI/class/51-multi-boot diff --git a/fai/config/hooks/partition.DEFAULT b/fai/config/hooks/partition.DEFAULT index 63537c2..b10a3e0 100755 --- a/fai/config/hooks/partition.DEFAULT +++ b/fai/config/hooks/partition.DEFAULT @@ -19,9 +19,9 @@ set -eE -o pipefail trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR # for calling outside of FAI, first -# source /a/bin/fai-wrapper -# then to set classes with: fai-setclass OPT1... -# which sets CLASS_OPT1=true... +# - source /a/bin/fai-wrapper +# - set any appropriate classes with: fai-setclass OPT1... which sets CLASS_OPT1=true... +# or run eval-fai-classfile FILE # # OPTIONS: # @@ -50,7 +50,7 @@ trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR # raid10. if [[ $SPECIAL_DISK ]]; then - export CLASS_REPARTITION=true + export CLASS_REPARTITION=true fi # # fai's setup-storage won't do btrfs on luks, @@ -60,6 +60,22 @@ fi # 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 + #### begin configuration @@ -86,20 +102,20 @@ boot_mib=10000 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 + 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; } @@ -114,21 +130,13 @@ root-cryptdev() { crypt-dev $(rootdev $@); } swap-cryptdev() { crypt-dev $(swapdev $@); } root-cryptname() { crypt-name $(rootdev $@); } swap-cryptname() { crypt-name $(swapdev $@); } -devbyid() { - local f - for f in $FAI/distro-install-common/devbyid \ - /a/bin/fai/fai/config/distro-install-common/devbyid; do - if [[ -e $f ]]; then $f "$@"; break; fi - done - -} ##### 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 @@ -137,12 +145,12 @@ 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: \ + 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. @@ -150,116 +158,120 @@ done # 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[@]} ) + 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 - 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 + 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 -r + 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[@]} ]]; then + echo "$0: error: failed to detect devs" >&2 + exit 1 +fi 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 [[ $boot_devs && $first ]]; then - first_grub_extdev=`grub_extdev` - first=false - 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_devs+=(`bootdev`) + fi + if [[ $boot_devs && $first ]]; then + first_grub_extdev=`grub_extdev` + first=false + fi done if ifclass RAID0 || (( ${#boot_devs[@]} < 4 )); then - raid_level=0 + raid_level=0 else - raid_level=10 - # need double the space if we are raid 10, and then - # might as well give some extra. - boot_mib=$((boot_mib * 3)) + raid_level=10 + # need double the space if we are raid 10, and then + # might as well give some extra. + boot_mib=$((boot_mib * 3)) fi if [[ ! $DISTRO ]]; then - if ifclass VOL_STRETCH_BOOTSTRAP; then - DISTRO=debianstretch_bootstrap - elif ifclass VOL_STRETCH; then - DISTRO=debianstretch - elif ifclass VOL_TESTING; then - DISTRO=debiantesting - elif ifclass VOL_XENIAL; then - DISTRO=ubuntuxenial - elif ifclass VOL_BELENOS; then - DISTRO=trisquelbelenos - elif ifclass VOL_FLIDAS; then - DISTRO=trisquelflidas - else - echo "PARTITIONER ERROR: no distro class/var set" >&2 - exit 1 - fi + if ifclass VOL_STRETCH_BOOTSTRAP; then + DISTRO=debianstretch_bootstrap + elif ifclass VOL_STRETCH; then + DISTRO=debianstretch + elif ifclass VOL_TESTING; then + DISTRO=debiantesting + elif ifclass VOL_XENIAL; then + DISTRO=ubuntuxenial + elif ifclass VOL_BELENOS; then + DISTRO=trisquelbelenos + elif ifclass VOL_FLIDAS; then + DISTRO=trisquelflidas + else + echo "PARTITIONER ERROR: no distro class/var set" >&2 + exit 1 + fi fi first_boot_dev=${boot_devs[0]} bpart() { # btrfs a partition - case $raid_level in - 0) mkfs.btrfs -f $@ ;; - 10) mkfs.btrfs -f -m raid10 -d raid10 $@ ;; - esac + case $raid_level in + 0) mkfs.btrfs -f $@ ;; + 10) mkfs.btrfs -f -m raid10 -d raid10 $@ ;; + esac } @@ -268,18 +280,18 @@ bpart() { # btrfs a partition luks_dir=${LUKS_DIR:-/var/lib/fai/config/distro-install-common/luks} if [[ ! -e $luks_dir/host-$HOSTNAME ]]; then - echo "$0: error: no key for hostname at $luks_dir/host-$HOSTNAME" >&2 - exit 1 + echo "$0: error: no key for hostname at $luks_dir/host-$HOSTNAME" >&2 + exit 1 fi lukspw=$(cat $luks_dir/iank) # # ian: disabled by chaning to tpnew while I use the tp host. # # note, corresponding changes in /b/ds/keyscript-{on,off} if ifclass tpnew; then - lukspw=$(cat $luks_dir/traci) + lukspw=$(cat $luks_dir/traci) fi if ifclass demohost; then - lukspw=x + lukspw=x fi @@ -287,167 +299,167 @@ first_root_crypt=$(root-cryptdev ${devs[0]}) # 1.5 x based on https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html#sect-custom-partitioning-x86 swap_mib=$(( $(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 ${devs[@]}; do - # if we repartition to the same as an old partition, - # we don't want any old fses hanging around. - for (( i=1; i <= lastn; i++ )); do - x=$(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 + ### begin wipefs + if [[ ! $SPECIAL_DISK ]]; then + for dev in ${devs[@]}; do + # if we repartition to the same as an old partition, + # we don't want any old fses hanging around. + for (( i=1; i <= lastn; i++ )); do + x=$(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 + fi + ### end wipefs + + for dev in ${devs[@]}; do + if [[ $SPECIAL_DISK ]]; then + dev=$(devbyid $SPECIAL_DISK) 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 - # 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` - 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 - - if [[ $SPECIAL_DISK ]]; then - exit 0 - fi + # parted will round up the disk size. Do -1 so we can have + # fully 1MiB unit partitions for easy resizing of the last partition. + # Otherwise we would pass in -0 for the end argument for the last partition. + # + # Note: parted print error output is expected. example: + # Error: /dev/vda: unrecognised disk label + disk_mib=$(( $(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 # this was probably for debugging... - 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` + 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 + + 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 - mkfs.ext2 `grub_extdev` - cryptsetup luksOpen `rootdev` `root-cryptname` \ - --key-file $luks_dir/host-$HOSTNAME - done - sleep 1 + for dev in ${devs[@]}; do + mkfs.ext2 `grub_extdev` + cryptsetup luksOpen `rootdev` `root-cryptname` \ + --key-file $luks_dir/host-$HOSTNAME + done + sleep 1 fi 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 - - ## create subvols ## - cd /mnt - - btrfs subvolume create root_$DISTRO - - mkdir -p /mnt/root_$DISTRO/boot - # could set default subvol like this, but no reason to. - # btrfs subvolume set-default \ - # $(btrfs subvolume list . | grep "root_$DISTRO$" | awk '{print $2}') . - - # no cow on the root filesystem. it's setup is fully scripted, - # if it's messed up, we will just recreated it, - # and we can get better perf with this. - # I can't remember exactly why, but this is preferable to mounting with - # -o nodatacow, I think because subvolumes inherit that. - chattr -Rf +C root_$DISTRO - cd / - umount /mnt + # 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 + + ## create subvols ## + cd /mnt + + btrfs subvolume create root_$DISTRO + + mkdir -p /mnt/root_$DISTRO/boot + # could set default subvol like this, but no reason to. + # btrfs subvolume set-default \ + # $(btrfs subvolume list . | grep "root_$DISTRO$" | awk '{print $2}') . + + # no cow on the root filesystem. it's setup is fully scripted, + # if it's messed up, we will just recreated it, + # and we can get better perf with this. + # I can't remember exactly why, but this is preferable to mounting with + # -o nodatacow, I think because subvolumes inherit that. + chattr -Rf +C root_$DISTRO + cd / + umount /mnt fi mount -o subvolid=0 $first_boot_dev /mnt @@ -459,11 +471,11 @@ 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 + # 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 + boot_vol=boot_$DISTRO fi [[ ! -e /mnt/$boot_vol ]] || btrfs subvolume delete /mnt/$boot_vol btrfs subvolume create $boot_vol @@ -478,37 +490,37 @@ grub-editenv /mnt/grubenv set last_boot=/$boot_vol umount /mnt if [[ $DISTRO == debianstretch_bootstrap ]]; then - cat > /tmp/fai/fstab < /tmp/fai/fstab </tmp/fai/disk_var.sh </tmp/fai/disk_var.sh < /tmp/fai/fstab < /tmp/fai/fstab <>/tmp/fai/crypttab <>/tmp/fai/crypttab <> /tmp/fai/fstab <> /tmp/fai/fstab </tmp/fai/disk_var.sh </tmp/fai/disk_var.sh <