2 # Copyright (C) 2016 Ian Kelling
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License
6 # as published by the Free Software Foundation; either version 2
7 # of the License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 # todo /boot/chboot needs update for lvm i think?
22 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
24 if [[ $EUID != 0 ]]; then
25 echo "$0: error: need to run as root" >&2
29 # for calling outside of FAI without args:
32 # source /b/fai/fai-wrapper
33 # - set any appropriate classes with: fai-setclass OPT1... which sets CLASS_OPT1=true...
34 # or run eval-fai-classfile FILE.
35 # - Set a VOL_DISTROVER (if not doing mkroot2) eg:
36 # fai-setclass VOL_NABIA
38 # ARGS (only 1 is valid):
40 # mkroot2: for running outside of fai and setting up the root2/boot2 luks and btrfs and tab files
42 # mkroot2tab: for running outside of fai and setting up the root2/boot2 tab files, in case luks and btrfs
43 # happen to already be setup.
45 # mktab: for running outside of fai and generating a crypttab for
46 # the main root fs in /tmp/fai. Must run with env var, eg export DISTRO=trisquelnabia.
48 # Example use in a bootstrap distro:
49 # scp /a/bin/fai/fai/config/{distro-install-common/devbyid,hooks/partition.DEFAULT} root@HOST:
51 # export DISTRO=trisquelnabia; ./partition.DEFAULT mktab
52 # ## cryptsetup wont take within a pipeline
53 # mapfile -t lines < <(awk '! /swap/ {print $2,$1}' /tmp/fai/crypttab )
54 # for l in "${lines[@]}"; do cryptsetup luksOpen $l; done
56 # # or alternatively, to avoid typing it many times:
57 # read -r lukspw; for l in "${lines[@]}"; do yes "$lukspw" | cryptsetup luksOpen $l; done
59 ## potentially useful later:
60 # sed 's#/root/keyscript,#decrypt_keyctl,#;s/$/,noauto/' /tmp/fai/crypttab >/etc/crypttab
62 # environment variables:
64 # HOSTNAME: if frodo, we exclude 2 devices from the /boot array, which
65 # the bios does not see. if demohost, we set the luks password to just
68 # SPECIAL_DISK: For use outside of fai. A base disk name like
69 # /dev/sdk. If set, we just cryptsetup and partition this one disk then
70 # exit. This is useful for partitioning a disk in preparation to replace
71 # a failed or failing disk from a raid10 array.
75 # REPARTITION: forces repartitioning even if we detect the proper amount
76 # of partitions already exist.
78 # NOWIPE: use existing subvolumes if they exist
80 # REROOTFS: Don't reuse the root filesystem, even if we normally would
82 # ROTATIONAL: forces to install onto hdds instead of sdds. normally sdds
83 # are chosen if they exist.
85 # PARTITION_PROMPT: command line prompt before partitioning. This is good
86 # to set if we don't expect repartitioning to happen.
88 # ROTATIONAL: in a system with ssd and hdd, install to the hdd
89 # instead of the default ssd.
91 # RAID0: forces raid0 filesystem. Normally with 4+ devices, we use
93 # RAID1: forces raid1 filesystem.
94 # RAID1c3: forces raid1c3 filesystem (btrfs raid 1, 3 copies).
100 ## duplicates fai-wrapper, for convenience of not needing it
101 if ! type -t ifclass
&>/dev
/null
; then
103 local var
=${1/#/CLASS_}
104 [[ $HOSTNAME == "$1" ||
${!var} ]]
119 echo "$0: error: unsupported arg: $1" >&2
125 if [[ ! $SPECIAL_DISK ]] && ! $mkroot2 && ! $mkroot2tab && ! $mktab \
126 && ! ifclass IANK
&& ! ifclass FSF
; then
127 echo $0: error
: need class IANK or FSF or SPECIAL_DISK
for running
in fai
131 if [[ $SPECIAL_DISK ]]; then
132 export CLASS_REPARTITION
=true
135 # # fai's setup-storage won't do btrfs on luks,
136 # # so we do it ourself :)
137 # inspiration taken from files in fai-setup-storage package
139 # if we are not running in fai, skiptask won't be defined, so carry on.
140 skiptask partition ||
! type skiptask
142 if ! type -p devbyid
; then
143 for d
in $FAI/distro-install-common \
144 /a
/bin
/fai
/fai
/config
/distro-install-common
$FAI $PWD; do
145 [[ -d $d ]] ||
continue
146 if [[ -e $d/devbyid
]]; then
148 devbyid
() { $devbyid "$@"; }
152 if [[ ! $devbyid ]]; then
153 echo "$0: error: failed to find devbyid script" >&2
158 #### begin configuration
160 # this is the ordering of the /dev/sdaX, but
161 # the ordering of the partition layout goes like this:
173 ##### end configuration
175 ##### begin function defs
177 bpart
() { # btrfs a partition
179 0) mkfs.btrfs
-f $@
;;
180 *) mkfs.btrfs
-f -m raid
$raid_level -d raid
$raid_level $@
;;
195 if [[ ! $luks_dir ]]; then
196 # see README for docs about how to create these
197 luks_dir
=$FAI/distro-install-common
/luks
198 if [[ ! -d $luks_dir ]]; then
199 luks_dir
=/q
/root
/luks
201 if [[ ! -d $luks_dir ]]; then
202 echo "$0: error: no luks_dir found" >&2
207 luks_file
=$luks_dir/host-
$HOSTNAME
208 if [[ ! -e $luks_file ]]; then
209 # shellcheck disable=SC2206 # globbing is intended
210 hostkeys
=($luks_dir/host-
*)
211 # if there is only one key, we might be deploying somewhere
212 # where dhcp doesnt give us a proper hostname, so use that.
213 if [[ ${#hostkeys[@]} == 1 && -e ${hostkeys[0]} ]]; then
214 luks_file
=${hostkeys[0]}
216 echo "$0: error: no key for hostname at $luks_file" >&2
221 # # note, corresponding changes in /b/ds/keyscript-{on,off}
222 if ifclass demohost
; then
224 elif [[ -e $luks_dir/$HOSTNAME ]]; then
225 lukspw
=$
(cat $luks_dir/$HOSTNAME)
227 lukspw
=$
(cat $luks_dir/iank
)
231 luks_file
=$luks_dir/host-amy
232 lukspw
=$
(cat $luks_dir/amy
)
244 echo $
(( $
(parted
-m $d unit MiB print | \
245 sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1))
251 # when we move to newer than trisquel 9, we can remove
252 # --type luks1. We can also check on cryptsetup --help | less /compil
253 # to see about the other settings. Default in debian 9 is luks2.
254 # You can convert from luks2 to luks 1 by adding a temporary key:
255 # cryptsetup luksAddKey --pbkdf pbkdf2
256 # then remove the new format keys with cryptsetup luksRemoveKey
257 # then cryptsetup convert DEV --type luks1, then readd old keys and remove temp.
258 yes YES | cryptsetup luksFormat
$luksdev $luks_file ||
[[ $?
== 141 ]]
260 cryptsetup luksAddKey
--key-file $luks_file \
261 $luksdev ||
[[ $?
== 141 ]]
262 # background: Keyfile and password are treated just
263 # like 2 ways to input a passphrase, so we don't actually need to have
264 # different contents of keyfile and passphrase, but it makes some
265 # security sense to a really big randomly generated passphrase
266 # as much as possible, so we have both.
268 # This would remove the keyfile.
269 # yes 'test' | cryptsetup luksRemoveKey /dev/... \
270 # /key/file || [[ $? == 141 ]]
271 cryptsetup luksOpen
$luksdev $cryptname --key-file $luks_file
277 fstabstd
="x-systemd.device-timeout=30s,x-systemd.mount-timeout=30s"
279 if [[ $DISTRO == debianbullseye_bootstrap
]]; then
280 cat > /tmp
/fai
/fstab
<<EOF
281 $first_boot_dev / btrfs noatime,subvol=$boot_vol 0 0
282 $first_efi /boot/efi vfat nofail,$fstabstd 0 0
284 cat >/tmp
/fai
/disk_var.sh
<<EOF
285 BOOT_DEVICE="${short_devs[@]}"
286 ROOT_PARTITION=$first_boot_dev
289 # note, fai creates the mountpoints listed here
290 cat > /tmp
/fai
/fstab
<<EOF
291 $first_root_dev / btrfs $fstabstd,noatime,subvol=root_$DISTRO$mopts 0 0
292 $first_root_dev /mnt/root btrfs nofail,$fstabstd,noatime,subvolid=0$mopts 0 0
293 $first_boot_dev /boot btrfs nofail,$fstabstd,noatime,subvol=$boot_vol 0 0
294 $first_efi /boot/efi vfat nofail,$fstabstd 0 0
295 $first_boot_dev /mnt/boot btrfs nofail,$fstabstd,noatime,subvolid=0 0 0
298 cat >> /tmp
/fai
/fstab
<<EOF
299 /dev/mapper/crypt-${vgs[0]}-o /mnt/o btrfs nofail,$fstabstd,noatime,subvolid=0$mopts 0 0
302 rm -f /tmp
/fai
/crypttab
303 for vg
in ${vgs[@]}; do
305 cat >>/tmp
/fai
/crypttab
<<EOF
306 crypt-$vg-root /dev/$vg/root none keyscript=/root/keyscript,discard,luks,initramfs
307 crypt-$vg-o /dev/$vg/o none keyscript=/root/keyscript,discard,luks,initramfs
308 crypt-$vg-swap /dev/$vg/swap /dev/urandom swap,cipher=aes-xts-plain64,size=256,hash=ripemd160
312 cat >> /tmp
/fai
/fstab
<<EOF
313 /dev/$vg/swap none swap nofail,$fstabstd,sw 0 0
316 cat >> /tmp
/fai
/fstab
<<EOF
317 /dev/mapper/crypt-$vg-swap none swap nofail,$fstabstd,sw 0 0
323 #BOOT_DEVICE=\${BOOT_DEVICE:-"${devs[0]}"}
325 # note: swaplist seems to do nothing.
326 cat >/tmp
/fai
/disk_var.sh
<<EOF
327 BOOT_DEVICE="${short_devs[@]}"
328 BOOT_PARTITION=\${BOOT_PARTITION:-$first_boot_dev}
329 # ROOT_PARTITIONS is added by me, used in arch setup.
330 ROOT_PARTITIONS="${root_devs[@]}"
331 ROOT_PARTITION=\${ROOT_PARTITION:-$first_root_dev}
332 SWAPLIST=\${SWAPLIST:-"${swap_devs[@]}"}
335 if [[ $HOSTNAME == kd
]]; then
336 # note, having these with keyscript and initramfs causes a luks error in fai.log,
337 # but it is safely ignorable and gets us the ability to just type our password
338 # in once at boot. A downside is that they are probably needed to be plugged in to boot.
339 cat >>/tmp
/fai
/crypttab
<<EOF
340 crypt_dev_ata-Samsung_SSD_870_QVO_8TB_S5VUNG0N900656V${even_bigsuf} /dev/disk/by-id/ata-Samsung_SSD_870_QVO_8TB_S5VUNG0N900656V${even_bigsuf} /mnt/root/q/root/luks/iank discard,luks
341 crypt_dev_ata-TOSHIBA_MD04ACA500_84R2K773FS9A-part1 /dev/disk/by-id/ata-TOSHIBA_MD04ACA500_84R2K773FS9A-part1 /mnt/root/q/root/luks/iank discard,luks
342 crypt_dev_ata-ST6000DM001-1XY17Z_Z4D29EBL-part1 /dev/disk/by-id/ata-ST6000DM001-1XY17Z_Z4D29EBL-part1 /mnt/root/q/root/luks/iank discard,luks
344 cat >> /tmp
/fai
/fstab
<<EOF
345 # r7 = root partition7. it isnt actually #7 anymore, not a great name, but whatever
346 /dev/mapper/crypt_dev_ata-Samsung_SSD_870_QVO_8TB_S5VUNG0N900656V${even_bigsuf} /mnt/r7 btrfs nofail,$fstabstd,noatime,compress=zstd,subvolid=0 0 0
347 /dev/mapper/crypt_dev_ata-TOSHIBA_MD04ACA500_84R2K773FS9A-part1 /mnt/rust1 btrfs nofail,$fstabstd,noatime,compress=zstd,subvolid=0 0 0
348 /dev/mapper/crypt_dev_ata-ST6000DM001-1XY17Z_Z4D29EBL-part1 /mnt/rust2 btrfs nofail,$fstabstd,noatime,compress=zstd,subvolid=0 0 0
356 #### root2 non-fai run
358 # todo: update for lvm
362 # We write to these files instead of just /etc/fstab, /etc/crypttab,
363 # because these are filesystems created after our current root, and so
364 # this allows us to update other root filesystems too.
365 rm -f /mnt
/root
/root2-
{fs
,crypt}tab
367 echo $0: error
: found partition
=true but have mkroot2 arg
373 for vg
in ${vgs[@]}; do
376 root2_devs
+=(/dev
/mapper
/crypt-
$vg-root2)
378 lvcreate
-y -L $root2_part_mib $vg -n root2
379 lvcreate
-y -L $boot2_part_mib $vg -n boot2
380 luks-setup
/dev
/$vg/root2 crypt-
$vg-root2
382 cat >>/mnt
/root
/root2-crypttab
<<EOF
383 crypt-$vg-root2 /dev/$vg/root2 $luks_file discard,luks,initramfs
387 bpart
${root2_devs[@]}
388 bpart
${boot2_devs[@]}
390 mkdir
-p /mnt
/root2
/mnt
/boot2
391 cat >>/mnt
/root
/root2-fstab
<<EOF
392 ${root2_devs[0]} /mnt/root2 btrfs nofail,x-systemd.device-timeout=30s,x-systemd.mount-timeout=30s,noatime,subvolid=0$mopts 0 0
393 ${boot2_devs[0]} /mnt/boot2 btrfs nofail,x-systemd.device-timeout=30s,x-systemd.mount-timeout=30s,noatime,subvolid=0 0 0
399 ##### end function defs
402 ##### begin variable setup
406 if ifclass REPARTITION
; then
407 partition
=true
# force a full wipe
410 if ifclass NOWIPE
; then
415 if ifclass REROOTFS
; then
419 if (($
(nproc
) > 2)); then
423 declare -A disk_excludes
424 if ! $mkroot2 && ! $mkroot2tab && ! $mktab ! ifclass USE_MOUNTED
; then
425 ## ignore disks that are mounted, eg when running from fai-cd
428 if [[ ! $PKNAME ]]; then
429 # shellcheck disable=SC2153 # not a misspelling
432 if [[ $MOUNTPOINT ]]; then
433 disk_excludes
[$PKNAME]=true
435 done < <(lsblk
-nP -o KNAME
,MOUNTPOINT
,PKNAME
)
440 # this excludes "usb". vda disk has empty tran (transport). This may need adjustment
441 # for some new type we come across. cdrom has type "rom"
442 for disk
in $
(lsblk
-ndo name
,type,tran |
awk '$3 ~ "^(sata|nvme|)$" && $2 == "disk" { print $1 }'); do
443 if [[ ${disk_excludes[$disk]} ]]; then
450 case $
(cat /sys
/block
/$disk/queue
/rotational
) in
453 echo $0: found ssd
/dev
/$disk
457 echo $0: found hdd
/dev
/$disk
459 *) echo "$0: error: unknown /sys/block/$disk/queue/rotational: \
460 $(cat $disk/queue/rotational)"; exit 1 ;;
464 # install all ssds, or if there are none, all hdds.
465 # Note, usb flash disks are seen as rotational, which is
466 # very odd, but convenient for ignoring them here.
467 if ! ifclass ROTATIONAL
&& (( ${#ssds[@]} > 0 )); then
468 read -ra short_devs
<<<"${ssds[@]}"
470 read -ra short_devs
<<<"${hdds[@]}"
484 # ext partition so grub can write persistent variables,
485 # so it can do a one time boot. grub can't write to
486 # btrfs or any cow fs because it's more
487 # more complicated to do and they don't want to.
489 # bios boot partition,
490 # https://wiki.archlinux.org/index.php/GRUB
492 # for an even raid (raid 1), when one disk is bigger, this partition goes on the big disk
494 # even_bign only exists in some cases
496 # check if the partitions exist have the right filesystems
497 #blkid="$(blkid -s TYPE)"
498 for dev
in ${short_devs[@]}; do
499 if $partition; then break; fi
500 y
=$
(readlink
-f $dev)
501 # shellcheck disable=SC2206 # globbing is intended
503 if (( ${#arr[@]} < lastn
)); then
506 # On one system, blkid is missing some partitions.
507 # maybe we need a flag, like FUZZY_BLKID or something, so we
508 # can check that at least some exist.
509 # for x in "`rootdev`: TYPE=\"crypto_LUKS\"" "`bootdev`: TYPE=\"btrfs\""; do
510 # echo "$blkid" | grep -Fx "$x" &>/dev/null || partition=true
514 if $partition && ifclass PARTITION_PROMPT
; then
515 echo "Press any key except ctrl-c to continue and partition these drives:"
516 if [[ $SPECIAL_DISK ]]; then
519 echo " ${short_devs[*]}"
531 for short_dev
in ${short_devs[@]}; do
532 dev
="$(devbyid $short_dev)"
533 if [[ $dev != */by-id
/* ]]; then
534 # no by-id link, assume we are in a vm and this is true for all devs.
537 # for vms, cant name a vg the same as the short device name, they
538 # conflict: /dev/$vg is already taken
546 root_devs
+=(/dev
/$vg/root
)
547 swap_devs
+=(/dev
/$vg/swap
)
549 o_devs
+=(/dev
/mapper
/crypt-
$vg-o)
550 root_devs
+=(/dev
/mapper
/crypt-
$vg-root)
551 swap_devs
+=(/dev
/mapper
/crypt-
$vg-swap)
554 first_root_dev
=${root_devs[0]}
555 if [[ ! $SPECIAL_DISK && ! ${devs[0]} ]]; then
556 echo "$0: error: failed to detect devs" >&2
561 pvsuf
=$partsuffix$pvn
562 bootsuf
=$partsuffix$bootn
563 efisuf
=$partsuffix$efin
564 grub_extsuf
=$partsuffix$grub_extn
565 # We dont do anything with this partition here, so this
566 # is be unused, but left as a comment for completing the pattern
567 # of all the suffixes.
568 #bios_grubsuf=$partsuffix$bios_grubn
569 even_bigsuf
=$partsuffix$even_bign
576 for dev
in ${devs[@]}; do
579 # I ran into a machine (frodo) where the bios doesn't know about some disks,
580 # so 1st stage of grub also doesn't know about them.
581 # Also, grub does not support mounting degraded btrfs as far as
582 # I can tell with some googling.
583 # From within an arch install env, I could detect them by noting
584 # their partitions were mixed with the next disk in /dev/disk/by-path,
585 # and I have mixed model disks, and I could see the 8 models which showed
586 # up in the bios, and thus see which 2 models were missing.
587 # hdparm -I /dev/sdh will give model info in linux.
588 # However, in fai on jessie, /dev/disk/by-path dir doesn't exist,
589 # and I don't see another way, so I'm hardcoding them.
590 # We still put grub on them and partition them the same, for uniformity
591 # and in case they get moved to a system that can recognize them,
592 # we just exclude them from the boot filesystem.
595 for id
in ata-TOSHIBA_MD04ACA500_8539K4TQFS9A \
596 ata-TOSHIBA_MD04ACA500_Y5IFK6IJFS9A
; do
597 if [[ $
(readlink
-f $id) == "$(readlink -f $dev)" ]]; then
605 boot_devs
+=($dev$bootsuf)
606 boot2_devs
+=(/dev
/$vg/boot2
)
607 boot_space
=$
(( boot_space
+ $
(parted
-m $dev unit MiB print | \
608 sed -nr "s#^/dev/[^:]+:([0-9]+).*#\1#p") - 1))
610 first_efi
=$dev$efisuf
611 first_grub_extdev
=$dev$grub_extsuf
615 first_boot_dev
=${boot_devs[0]}
618 if ifclass RAID0 ||
(( ${#boot_devs[@]} == 1 )); then
621 elif ifclass RAID1 ||
(( ${#boot_devs[@]} == 2 )); then
622 if (( ${#boot_devs[@]} == 2 )); then
627 elif ifclass RAID1c3 ||
(( ${#boot_devs[@]} == 3 )); then
637 ### Begin calculate boot partition space
638 # due to raid duplication
640 1|
10) boot_space
=$
(( boot_space
/ 2 )) ;;
641 1c3
) boot_space
=$
(( boot_space
/ 3 )) ;;
645 elif (( boot_space
> 900000 )); then
646 # this is larger than needed for several /boot subvols,
647 # becuase I keep a minimal debian install on it for
648 # recovery needs and for doing pxe-kexec.
652 elif (( boot_space
> 30000 )); then
653 boot_mib
=$
(( 5000 + (boot_space
- 30000) / 2 ))
657 # Small vms don't have room for /boot recovery. With 3 kernels
658 # installed, i'm using 132M on t8, so this seems like plenty of
659 # room. note: rhel 8 recomments 1g for /boot. u20.04 with 3 kernels =
660 # 308 mb, so things have grown significantly
665 boot_part_mib
=$
(( boot_mib
* raid_duplication
/ ${#boot_devs[@]} ))
668 boot2_part_mib
=$
(( boot2_mib
* raid_duplication
/ ${#boot_devs[@]} ))
669 root2_part_mib
=$
(( root2_mib
* raid_duplication
/ ${#root_devs[@]} ))
674 ### end calculate boot partition space
677 if [[ ! $DISTRO ]]; then
678 if ifclass VOL_BULLSEYE_BOOTSTRAP
; then
679 DISTRO
=debianbullseye_bootstrap
680 elif ifclass VOL_STRETCH
; then
682 elif ifclass VOL_BUSTER
; then
684 elif ifclass VOL_BULLSEYE
; then
685 DISTRO
=debianbullseye
686 elif ifclass VOL_BOOKWORM
; then
687 DISTRO
=debianbookworm
688 elif ifclass VOL_TESTING
; then
690 elif ifclass VOL_XENIAL
; then
692 elif ifclass VOL_BIONIC
; then
694 elif ifclass VOL_FOCAL
; then
696 elif ifclass VOL_JAMMY
; then
698 elif ifclass VOL_FLIDAS
; then
699 DISTRO
=trisquelflidas
700 elif ifclass VOL_ETIONA
; then
701 DISTRO
=trisqueletiona
702 elif ifclass VOL_NABIA
; then
704 elif ifclass VOL_ARAMO
; then
706 elif $mkroot2 ||
$mkroot2tab; then
709 echo "PARTITIONER ERROR: no distro class/var set" >&2
714 if [[ $DISTRO == debianbullseye_bootstrap
]]; then
715 # this is just convenience for the libreboot_grub config
716 # so we can glob the other ones easier.
719 boot_vol
=boot_
$DISTRO
723 # 1.5 x based on https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html#sect-custom-partitioning-x86
724 swap_mib
=$
(( $
(grep ^MemTotal
: /proc
/meminfo | \
725 awk '{print $2}') * 3/(${#devs[@]} * 2 ) / 1024 ))
728 ##### end variable setup
733 if $mkroot2 ||
$mkroot2tab; then
749 if [[ ! $SPECIAL_DISK ]]; then
751 # we do lvm removals just for the disks we are using
755 pv_devs
=$
(pvs
--noheadings -o pvname
)
756 for pv_dev
in $pv_devs; do
757 for short_dev
in ${short_devs[@]}; do
758 if [[ $pv_dev == $short_dev* ]]; then
760 vgs_of_pv
=$
(pvs
--noheadings -o vgname
$pv_dev)
761 for vg
in $vgs_of_pv; do
762 if [[ ${vg_map[$vg]} ]]; then
767 lvs
=$
(vgs
--noheadings -o lv_path
$vg)
776 for vg
in ${vg_wipes[@]}; do
781 for pv
in ${pv_wipes[@]}; do
785 for dev
in ${devs[@]}; do
786 # if we repartition to the same as an old partition,
787 # we don't want any old fses hanging around.
789 # wipefs has failed, manual run works, google suggests timing issue
790 while ! wipefs
-a $dev; do
792 count_down
=$
((count_down
- 1))
793 if (( count_down
<= 0 )); then
794 echo "$0: wipefs failed 10 times. exiting" >&2
803 # When we have 2 disks of at least 100g difference in size,
804 # make an extra partition on the end of the bigger one.
810 if (( $
(dev-mib
${devs[0]}) >= $
(dev-mib
${devs[1]}) )); then
814 disk_mib
=$
(dev-mib
${devs[smalli]})
815 even_big_dev
=${devs[bigi]}
816 even_big_mib
=$
(dev-mib
$even_big_dev)
817 if (( even_big_mib
- disk_mib
> even_diff_min
)); then
822 if [[ $SPECIAL_DISK ]]; then
823 devs
=($
(devbyid
$SPECIAL_DISK))
825 for dev
in ${devs[@]}; do
829 # parted will round up the disk size. Do -1 so we can have
830 # fully 1MiB unit partitions for easy resizing of the last partition.
831 # Otherwise we would pass in -0 for the end argument for the last partition.
833 # Note: parted print error output is expected. example:
834 # Error: /dev/vda: unrecognised disk label
835 if ! $even_raid; then
840 parted
-s $dev mklabel gpt
841 # MiB because parted complains about alignment otherwise.
842 pcmd
="parted -a optimal -s -- $dev"
845 pv_end
=$
(( disk_mib
- boot_part_mib
))
846 $pcmd mkpart primary ext3
524MiB
${pv_end}MiB
849 # + 794 pvcreate -y /dev/disk/by-id/ata-ST4000DM000-1F2168_Z3028BKA-part1
850 # WARNING: Device /dev/sde1 not initialized in udev database even after waiting 10000000 microseconds.
851 # No device found for /dev/disk/by-id/ata-ST4000DM000-1F2168_Z3028BKA-part1.
852 # sleep 10 was not enough.
854 while [[ ! -e $dev$pvsuf ]] && (( secs
< 40 )); do
859 pvcreate
-y -ff $dev$pvsuf
860 vgcreate
-y -ff $vg $dev$pvsuf
865 # This would maximize it, but we are going for a separate filesystem in /o,
866 # so use fixed sizes to allow both to grow
867 # 600 = uefi 512 + grubext 8 + bios grub 3 + some extra cuz this is lvm
868 #root_mib=$(( disk_mib - root2_part_mib - swap_mib - boot_part_mib - boot2_part_mib - 600 ))
869 root_mib
=$
(( 1000 * 1000 )) # * 1000 to make it in gb.
870 o_mib
=$
(( 120 * 1000 ))
873 if [[ ! $SPECIAL_DISK ]]; then
874 # -L unit default mebibyte
875 lvcreate
-y -L $root_mib $vg -n root
877 lvcreate
-y -L $o_mib $vg -n o
879 lvcreate
-y -L $swap_mib $vg -n swap
880 # unencrypted swap needs mkswap
886 $pcmd mkpart primary
"" ${pv_end}MiB
${disk_mib}MiB
887 $pcmd name
$bootn boot
888 $pcmd set $bootn boot on
890 # uefi partition, for normal bios systems, its just in case.
891 $pcmd mkpart primary
"fat32" 12MiB
524MiB
893 # note, this is shown here: https://support.system76.com/articles/bootloader/
894 # but not mentioned https://wiki.archlinux.org/index.php/EFI_system_partition
895 # might not be needed
896 $pcmd set $efin esp on
898 # i only need a few k, but googling min size,
899 # I found someone saying that gparted required
900 # required at least 8 because of their hard drive cylinder size.
901 # And 8 is still very tiny.
903 $pcmd mkpart primary
"ext2" 4MiB
12MiB
904 $pcmd name
$grub_extn grubext
905 # gpt ubuntu cloud image uses ~4 mb for this partition. fai uses 1 MiB.
906 # so, I use 3, whatever.
907 # note: parted manual saying cheap flash media
908 # should to start at 4.
909 # biols grub partition
910 $pcmd mkpart primary
"" 1MiB
4MiB
911 $pcmd name
$bios_grubn biosgrub
912 $pcmd set $bios_grubn bios_grub on
913 if $even_big_part && [[ $dev == "$even_big_dev" ]]; then
914 $pcmd mkpart primary ext3
${disk_mib}MiB
${even_big_mib}MiB
915 $pcmd name
$even_bign even_big
918 # the mkfs failed before on a vm, which prompted me to add
920 # then it failed again on a physical machine
922 # Device /dev/disk/by-id/foo doesn't exist or access denied,
923 # so I added a wait until it existed.
924 # Then I added the mkfs.ext2, which claimed to succeed,
925 # but then couldn't be found upon reboot. In that case we didn't
926 # wait at all. So I've added a 3 second minimum wait.
928 while [[ ! -e $dev$efisuf ]] && (( secs
< 40 )); do
934 mkfs.fat
-F32 $dev$efisuf
936 if ! fsf
&& $even_big_part && [[ $dev == "$even_big_dev" ]]; then
937 luks-setup
$even_big_dev$even_bigsuf ${even_big_dev##*/}$even_bigsuf
938 mkfs.btrfs
-f /dev
/mapper
/${even_big_dev##*/}$even_bigsuf
941 # Holds just a single file, rarely written, so
942 # use ext2, like was often used for the /boot partition.
943 # This exists because grub can only persist data to a non-cow fs.
944 # And we use persisting a var in grub to do a one time boot.
945 # We could pass the data on the kernel command line and persist it
946 # to grubenv after booting, but that relies on the boot always succeeding.
947 # This is just a bit more robust, and it could work for booting
948 # into ipxe which can't persist data, if we ever got that working.
949 mkfs.ext2
$dev$grub_extsuf
951 # for fsf, no encryption of root because root will not contain any
954 luks-setup
/dev
/$vg/root crypt-
$vg-root
955 luks-setup
/dev
/$vg/o crypt-
$vg-o
958 if [[ $SPECIAL_DISK ]]; then
962 ls -la /dev
/btrfs-control
# this was probably for debugging...
965 bpart
${root_devs[@]}
969 bpart
${boot_devs[@]}
971 else ## end if $partition ##
974 for vg
in ${vgs[@]}; do
975 if [[ -e /dev
/mapper
/crypt-
$vg-root ]]; then
979 luks-setup
/dev
/$vg/root crypt-
$vg-root
981 cryptsetup luksOpen
/dev
/$vg/root crypt-
$vg-root \
982 --key-file $luks_file
983 cryptsetup luksOpen
/dev
/$vg/o crypt-
$vg-o \
984 --key-file $luks_file
991 bpart
${root_devs[@]}
997 if $wipe && [[ $DISTRO != debianbullseye_bootstrap
]]; then
998 # bootstrap distro doesn't use separate encrypted root.
999 mount
-o subvolid
=0 ${root_devs[0]} /mnt
1000 # systemd creates subvolumes we want to delete.
1001 mapfile
-t s
< <(btrfs subvolume list
--sort=-path /mnt |
1002 sed -rn "s#^.*path\s*(root_$DISTRO/\S+)\s*\$#\1#p")
1003 for subvol
in ${s[@]}; do btrfs subvolume delete
/mnt
/$subvol; done
1004 btrfs subvolume set-default
0 /mnt
1005 [[ ! -e /mnt
/root_
$DISTRO ]] || btrfs subvolume delete
/mnt
/root_
$DISTRO
1007 ## create subvols ##
1010 btrfs subvolume create root_
$DISTRO
1012 # could set default subvol like this, but no reason to.
1013 # btrfs subvolume set-default \
1014 # $(btrfs subvolume list . | grep "root_$DISTRO$" | awk '{print $2}') .
1016 # For raid systems, cow allows for error correction, for non-raid systems,
1017 # protects root fs from having the plug pulled. Reprovisioning a root
1018 # subvol is not my favorite thing to do.
1019 # # no cow on the root filesystem. it's setup is fully scripted,
1020 # # if it's messed up, we will just recreated it,
1021 # # and we can get better perf with this.
1022 # # I can't remember exactly why, but this is preferable to mounting with
1023 # # -o nodatacow, I think because subvolumes inherit that.
1024 # chattr -Rf +C root_$DISTRO
1029 mount
-o subvolid
=0 $first_boot_dev /mnt
1031 btrfs subvolume set-default
0 /mnt
# already default, just ensuring it.
1033 # for libreboot systems. grub2 only reads from subvolid=0
1035 # todo: this would need some rework if we moved boot into
1037 cp $FAI/distro-install-common
/libreboot_grub.cfg
/mnt
/grub2
1039 if $wipe && [[ -e /mnt
/$boot_vol ]]; then
1040 btrfs subvolume delete
/mnt
/$boot_vol
1042 if [[ ! -e /mnt
/$boot_vol ]]; then
1043 btrfs subvolume create
$boot_vol
1047 ## end create subvols ##
1049 mount
$first_grub_extdev /mnt
1050 grub-editenv
/mnt
/grubenv
set did_fai_check
=true
1051 grub-editenv
/mnt
/grubenv
set last_boot
=/$boot_vol
1055 # initial setup of extra data fs, mounted,
1056 # btrfs subvol create nocow
1058 # chown iank.iank nocow