X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=fai%2Fconfig%2Fhooks%2Fpartition.DEFAULT;h=988ce06f925d4abe1f84ac14031fb4337d3b590e;hb=dcc5f68f7fbe9aa86cb3c7402ba4429bd70b369d;hp=d896a94d6e2e67a441e32e3446c0f16411b43bfe;hpb=ace13281eb68397600d7c4eb4c2718652f3d2e78;p=automated-distro-installer diff --git a/fai/config/hooks/partition.DEFAULT b/fai/config/hooks/partition.DEFAULT index d896a94..988ce06 100755 --- a/fai/config/hooks/partition.DEFAULT +++ b/fai/config/hooks/partition.DEFAULT @@ -15,13 +15,22 @@ # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +PS4='+ $LINENO ' 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 +if [[ $EUID != 0 ]]; then + echo "$0: error: need to run as root" >&2 + exit 1 +fi + +# for calling outside of FAI: +# fai-redep +# s +# source /b/fai/fai-wrapper # - set any appropriate classes with: fai-setclass OPT1... which sets CLASS_OPT1=true... # or run eval-fai-classfile FILE +# export luks_dir=/q/root/luks # # OPTIONS: # @@ -41,6 +50,8 @@ trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR # REPARTITION: forces repartitioning even if we detect the proper amount # of partitions already exist. # +# NOWIPE: use existing subvolumes if they exist +# # ROTATIONAL: forces to install onto hdds instead of sdds. normally sdds # are chosen if they exist. # @@ -63,7 +74,7 @@ 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 + /a/bin/fai/fai/config/distro-install-common $FAI $PWD; do [[ -d $d ]] || continue if [[ -e $d/devbyid ]]; then devbyid=$d/devbyid @@ -84,19 +95,17 @@ fi rootn=1 swapn=2 bootn=3 +efin=4 # 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 +grub_extn=5 # bios boot partition, # https://wiki.archlinux.org/index.php/GRUB -bios_grubn=5 +bios_grubn=6 lastn=$bios_grubn -# 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 + ##### end configuration @@ -111,17 +120,13 @@ add-part() { # add partition suffix to $dev d=$1 part=$2 fi - if [[ $d == /dev/disk/by-id/* ]]; then - ret=$d-part$part - else - ret=$d$part - fi - echo $ret + echo $d-part$part } bootdev() { add-part $@ $bootn; } rootdev() { add-part $@ $rootn; } swapdev() { add-part $@ $swapn; } +efidev() { add-part $@ $efin; } grub_extdev() { add-part $@ $grub_extn; } bios_grubdev() { add-part $@ $bios_grubn; } @@ -132,21 +137,50 @@ swap-cryptdev() { crypt-dev $(swapdev $@); } root-cryptname() { crypt-name $(rootdev $@); } swap-cryptname() { crypt-name $(swapdev $@); } +dev-mib() { + echo $(( $(parted -m $dev unit MiB print | \ + sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1)) +} + ##### end function defs -if ifclass REPARTITION;then +if ifclass REPARTITION; then partition=true # force a full wipe else partition=false # change to true to force a full wipe fi +if ifclass NOWIPE; then + wipe=false +else + wipe=true +fi +if ((`nproc` > 2)); then + mopts=,compress=zstd +fi +declare -A disk_excludes +if ! ifclass USE_MOUNTED; then + ## ignore disks that are mounted, eg when running from fai-cd + while read -r l; do + eval "$l" + if [[ ! $PKNAME ]]; then + PKNAME="$KNAME" + fi + if [[ $MOUNTPOINT ]]; then + disk_excludes[$PKNAME]=true + fi + done < <(lsblk -nP -o KNAME,MOUNTPOINT,PKNAME) +fi hdds=() ssds=() -cd /sys/block -for disk in [sv]d[a-z]; do - case $(cat $disk/queue/rotational) in +# this excludes usb. note: i may encounter some other type in the future. +for disk in $(lsblk -do name,tran -n | awk '$2 ~ "^(sata|nvme)$" { print $1 }'); do + if [[ ${disk_excludes[$disk]} ]]; then + continue + fi + case $(cat /sys/block/$disk/queue/rotational) in 0) ssds+=(/dev/$disk) ;; 1) hdds+=(/dev/$disk) ;; *) echo "$0: error: unknown /sys/block/$disk/queue/rotational: \ @@ -169,11 +203,10 @@ fi 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 + arr=($y?*) + if (( ${#arr[@]} != lastn )); then + partition=true + fi # 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. @@ -193,13 +226,13 @@ shopt -s extglob for short_dev in ${short_devs[@]}; do devs+=($(devbyid $short_dev)) done -if [[ ! ${devs[@]} ]]; then +if [[ ! ${devs[0]} ]]; then echo "$0: error: failed to detect devs" >&2 exit 1 fi - -first=false +boot_space=0 +first=true boot_devs=() for dev in ${devs[@]}; do if ifclass frodo; then @@ -226,48 +259,86 @@ for dev in ${devs[@]}; do break fi done - $bad_disk || boot_devs+=(`bootdev`) + $bad_disk || boot_devs+=($(bootdev)) else - boot_devs+=(`bootdev`) + 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` + if $first && [[ $boot_devs ]]; then + first_efi=$(efidev) + first_grub_extdev=$(grub_extdev) first=false fi done +first_boot_dev=${boot_devs[0]} +even_raid=false if ifclass RAID0 || (( ${#boot_devs[@]} == 1 )); then raid_level=0 elif ifclass RAID1 || (( ${#boot_devs[@]} <= 3 )); then + if (( ${#boot_devs[@]} == 2 )); then + even_raid=true + fi raid_level=1 else raid_level=10 - # need double the space if we are raid 10, and then - # might as well give some extra. - boot_mib=$((boot_mib * 3)) 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 + if [[ ! $DISTRO ]]; then - if ifclass VOL_STRETCH_BOOTSTRAP; then - DISTRO=debianstretch_bootstrap + if ifclass VOL_BUSTER_BOOTSTRAP; then + DISTRO=debianbuster_bootstrap elif ifclass VOL_STRETCH; then DISTRO=debianstretch + elif ifclass VOL_BUSTER; then + DISTRO=debianbuster + elif ifclass VOL_BULLSEYE; then + DISTRO=debianbullseye elif ifclass VOL_TESTING; then DISTRO=debiantesting elif ifclass VOL_XENIAL; then DISTRO=ubuntuxenial - elif ifclass VOL_BELENOS; then - DISTRO=trisquelbelenos + elif ifclass VOL_BIONIC; then + DISTRO=ubuntubionic + elif ifclass VOL_FOCAL; then + DISTRO=ubuntufocal elif ifclass VOL_FLIDAS; then DISTRO=trisquelflidas + elif ifclass VOL_ETIONA; then + DISTRO=trisqueletiona + elif ifclass VOL_NABIA; then + DISTRO=trisquelnabia else echo "PARTITIONER ERROR: no distro class/var set" >&2 exit 1 fi fi -first_boot_dev=${boot_devs[0]} bpart() { # btrfs a partition @@ -279,23 +350,31 @@ bpart() { # btrfs a partition } -# 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} +if [[ ! $luks_dir ]]; then + # see README for docs about how to create these + luks_dir=$FAI/distro-install-common/luks +fi -if [[ ! -e $luks_dir/host-$HOSTNAME ]]; then - echo "$0: error: no key for hostname at $luks_dir/host-$HOSTNAME" >&2 - exit 1 +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 $luks_file" >&2 + exit 1 + fi fi -lukspw=$(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) -fi if ifclass demohost; then lukspw=x +elif [[ -e $luks_dir/$HOSTNAME ]]; then + lukspw=$(cat $luks_dir/$HOSTNAME) +else + lukspw=$(cat $luks_dir/iank) fi @@ -308,7 +387,7 @@ swap_mib=$(( $(grep ^MemTotal: /proc/meminfo | \ mkdir -p /tmp/fai root_devs=() for dev in ${devs[@]}; do - root_devs+=(`rootdev`) + root_devs+=($(rootdev)) done shopt -s nullglob if $partition; then @@ -319,7 +398,7 @@ if $partition; then # if we repartition to the same as an old partition, # we don't want any old fses hanging around. for (( i=1; i <= lastn; i++ )); do - x=$(add-part $dev $i) + x=$(add-part $i) [[ -e $x ]] || continue count_down=10 # wipefs has failed, manual run works, google suggests timing issue @@ -333,6 +412,16 @@ if $partition; then fi ### end wipefs + + if $even_raid; then + for dev in ${devs[@]}; do + cur_mib=$(dev-mib) + if [[ ! $disk_mib ]] || (( cur_mib < disk_mib )); then + disk_mib=$cur_mib + fi + done + fi + for dev in ${devs[@]}; do if [[ $SPECIAL_DISK ]]; then dev=$(devbyid $SPECIAL_DISK) @@ -344,15 +433,16 @@ if $partition; then # # Note: parted print error output is expected. example: # Error: /dev/vda: unrecognised disk label - disk_mib=$(( $(parted -m $dev unit MiB print | \ - sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1)) + if ! $even_raid; then + disk_mib=$(dev-mib) + fi 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 + $pcmd mkpart primary ext3 524MiB ${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 @@ -362,6 +452,14 @@ if $partition; then $pcmd name $swapn swap $pcmd mkpart primary "" ${swap_end}MiB ${disk_mib}MiB $pcmd name $bootn boot + # eufi = bloated, half a gig gimme a break. + $pcmd mkpart primary "fat32" 12MiB 524MiB + $pcmd name $efin efi + $pcmd set $efin esp on + # note, this is shown here: https://support.system76.com/articles/bootloader/ + # but not mentioned https://wiki.archlinux.org/index.php/EFI_system_partition + # probably not needed + $pcmd set $bootn boot on # 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. @@ -387,10 +485,13 @@ if $partition; then # wait at all. So I've added a 3 second minimum wait. sleep 3 secs=0 - while [[ ! -e `rootdev` ]] && (( secs < 10 )); do + while [[ ! -e $(rootdev) ]] && (( secs < 10 )); do sleep 1 secs=$((secs +1)) done + + mkfs.fat -F32 $(efidev) + # 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. @@ -399,19 +500,19 @@ if $partition; then # 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 + mkfs.ext2 $(grub_extdev) + # when we move to newer than trisquel 9, 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` $luks_dir/host-$HOSTNAME \ + yes YES | cryptsetup luksFormat $(rootdev) $luks_file \ --type luks1 -c aes-cbc-essiv:sha256 -s 256 || [[ $? == 141 ]] yes "$lukspw" | \ - cryptsetup luksAddKey --key-file $luks_dir/host-$HOSTNAME \ - `rootdev` || [[ $? == 141 ]] + 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 @@ -422,8 +523,8 @@ if $partition; then # yes 'test' | cryptsetup luksRemoveKey /dev/... \ # /key/file || [[ $? == 141 ]] - cryptsetup luksOpen `rootdev` `root-cryptname` \ - --key-file $luks_dir/host-$HOSTNAME + cryptsetup luksOpen $(rootdev) $(root-cryptname) \ + --key-file $luks_file if [[ $SPECIAL_DISK ]]; then exit 0 @@ -435,15 +536,17 @@ if $partition; then bpart ${boot_devs[@]} else for dev in ${devs[@]}; do - mkfs.ext2 `grub_extdev` - cryptsetup luksOpen `rootdev` `root-cryptname` \ - --key-file $luks_dir/host-$HOSTNAME + if [[ -e /dev/mapper/$(root-cryptname) ]]; then + continue + fi + cryptsetup luksOpen $(rootdev) $(root-cryptname) \ + --key-file $luks_file done sleep 1 fi -if [[ $DISTRO != debianstretch_bootstrap ]]; then +if $wipe && [[ $DISTRO != debianbuster_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. @@ -458,7 +561,6 @@ if [[ $DISTRO != debianstretch_bootstrap ]]; then btrfs subvolume create root_$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}') . @@ -481,15 +583,19 @@ btrfs subvolume set-default 0 /mnt # already default, just ensuring it. mkdir -p /mnt/grub2 cp $FAI/distro-install-common/libreboot_grub.cfg /mnt/grub2 -if [[ $DISTRO == debianstretch_bootstrap ]]; then +if [[ $DISTRO == debianbuster_bootstrap ]]; then # this is just convenience for the libreboot_grub config # so we can glob the other ones easier. boot_vol=$DISTRO else boot_vol=boot_$DISTRO fi -[[ ! -e /mnt/$boot_vol ]] || btrfs subvolume delete /mnt/$boot_vol -btrfs subvolume create $boot_vol +if $wipe && [[ -e /mnt/$boot_vol ]]; then + btrfs subvolume delete /mnt/$boot_vol +fi +if [[ ! -e /mnt/$boot_vol ]]; then + btrfs subvolume create $boot_vol +fi cd / umount /mnt ## end create subvols ## @@ -500,9 +606,10 @@ grub-editenv /mnt/grubenv set did_fai_check=true grub-editenv /mnt/grubenv set last_boot=/$boot_vol umount /mnt -if [[ $DISTRO == debianstretch_bootstrap ]]; then +if [[ $DISTRO == debianbuster_bootstrap ]]; then cat > /tmp/fai/fstab </tmp/fai/disk_var.sh < /tmp/fai/fstab <>/tmp/fai/crypttab <> /tmp/fai/fstab <