aboutsummaryrefslogtreecommitdiff
path: root/share/hydractl/provision
blob: f2c468c869f5f30ae7d71ce0455da3e8f7166043 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
#!/bin/bash
#
# System installer.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load.
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Create a logical volume.
function hydra_provision_lvcreate {
  local volume="$1"
  local size="$2"
  local space

  if [ -z "$volume" ] || [ "$size" == "0" ]; then
    return
  fi

  if ! lvdisplay $vg/$volume &> /dev/null; then
    echo "Creating logical volume $volume..."
    if [ "$size" == "-1" ]; then
      space="-l 100%FREE"
    else
      space="-L $size"
    fi

    # See http://forums.funtoo.org/viewtopic.php?id=1206
    #     https://bbs.archlinux.org/viewtopic.php?id=124615
    if [ "$disable_zeroing" == "y" ]; then
      hydra_sudo_run lvcreate -Z n $space -n $volume $vg
    else
      hydra_sudo_run lvcreate $space -n $volume $vg
    fi
  fi
}

# Cryptsetup wrapper.
function hydra_cryptsetup {
  if [ ! -z "$1" ] && [ -b "$1" ]; then
    # Run cryptsetup with custom parameters
    #hydra_sudo_run cryptsetup --cipher aes-xts-plain64:sha256 --key-size 512 --hash sha512 --iter-time 5000 --use-random -y -q luksFormat $1

    # Run cryptsetup mostly with defaults
    hydra_sudo_run cryptsetup --use-random -y -q luksFormat $1
  fi
}

# Create a physical volume.
function hydra_provision_create_volume {
  local volume="$1"

  if [ -z "$volume" ] || [ ! -b "/dev/mapper/$vg-$volume" ]; then
    return
  fi

  if [ "$encrypt" == "y" ]; then
    echo "Creating encrypted $volume device..."
    hydra_cryptsetup /dev/mapper/$vg-$volume
    hydra_sudo_run cryptsetup luksOpen /dev/mapper/$vg-$volume provision-$volume
    hydra_sudo_run mkfs.ext4 /dev/mapper/provision-$volume

    if [ "$volume" == "root" ]; then
      install_device="/dev/mapper/provision-root"
    fi
  else
    echo "Creating $volume device..."
    hydra_sudo_run mkfs.ext4 /dev/mapper/$vg-$volume

    if [ "$volume" == "root" ]; then
      install_device="/dev/mapper/$vg-root"
    fi
  fi
}

# Determine optimal partition start taking into account disk alignment
# This function needs to know where the last partition ends
function partition_sector_start {
  local sector_start="$1"
  local last_partition_end="$2"
  local optimal_sector_size="$3"

  while (( $sector_start <= $last_partition_end + 1)); do
    sector_start="$(($sector_start + $optimal_sector_size))"
  done

  echo $sector_start
}

# Make sure there is provision config.
function hydra_provision_config {
  local base_arch="`uname -m`"

  if [ "$base_arch" == "x86_64" ]; then
    base_arch="amd64"
  else
    base_arch="i386"
  fi

  hydra_user_config   interactive       y                                "Interactive mode? (y/n)"
  hydra_user_config   device            /dev/sdb                         "Physical device(s) (more than one auto sets RAID mode)"
  hydra_user_config   swap_size         2000                             "Swap size (in MB, 0 to not create it)"
  hydra_user_config   root_size         20G                              "Size of root partition (-1 for all free space)"

  if [ "$root_size" != "-1" ]; then
    hydra_user_config home_size         20G                              "Size of home partition (0 to not create it, -1 for all free space)"
  else
    home_size="0"
  fi

  if [ "$root_size" != "-1" ] && [ "$home_size" != "-1" ]; then
    hydra_user_config var_size          20G                              "Size of var partition  (0 to not create it, -1 for all free space)"
  else
    var_size="0"
  fi

  hydra_user_config   encrypt           y                                "Encrypt volumes? (if RAID, then encryption is default) (y/n)"

  if [ "$encrypt" == "y" ]; then
    hydra_user_config garbage           y                                "Pre-fill volumes with garbage? (y/n)"
  fi

  if [ "$swap_size" != "0" ]; then
    hydra_user_config random_swap       y                                "Random swap? (y/n)"
  fi

  hydra_user_config   disable_zeroing   n                                "Disable zeroing of LVM volumes? (y/n)"
  hydra_user_config   discards          n                                "Enable discards on volumes (TRIM etc)? (y/n)"
  hydra_user_config   hostname          machine                          "Hostname"
  hydra_user_config   domain            example.org                      "Domain"
  hydra_user_config   arch              $base_arch                       "System arch"
  hydra_user_config   version           bullseye                         "Distro version"
  hydra_user_config   vg                $hostname                        "Install vg"
  hydra_user_config   grub              y                                "Setup GRUB? (y/n)"
  hydra_user_config   boot_mode         uefi                             "Boot mode? (UEFI/BIOS)"

  # Sanitize boot_mode param
  boot_mode="`echo $boot_mode | tr '[:upper:]' '[:lower:]'`"

  if [ "$boot_mode" == "uefi" ]; then
    hydra_user_config secure_boot       y                                "Use SecureBoot? (y/n)"
    hydra_user_config uefi_update_nvram y                                "Set NVRAM boot variables for GRUB? (y/n)"
  fi

  hydra_user_config   initramfs         initramfs-tools                  "Initramfs manager? (initramfs-tools/dracut)"
  hydra_user_config   mirror            https://deb.debian.org/debian/   "Debian mirror"
  hydra_user_config   ssh               y                                "Install openssh-server? (y/n)"

  # Check arch
  if [ "$arch" == "armel" ] || [ "$arch" == "armhf" ]; then
    echo "You probably want to run provision-raspi instead of provision"
    exit 1
  fi

  # Set discards config
  if [ "$discards" == "y" ]; then
    crypttab_discards=",discard"
  fi
}

# Load configuration
hydra_provision_config_load $1

# Parameters
WORK="/tmp/debootstrap"

# Set environment
export LC_ALL=C

# Get config parameters.
hydra_provision_config

# Check for requirements.
for req in debootstrap cryptsetup grub-pc lvm2 parted mdadm; do
  hydra_install_package $req
done

# Warning.
if [ "$interactive" == "y" ]; then
  echo "WARNING: about to create partitions on $device!"
  echo "WARNING: make sure you have backups of the important data from this device!"
  echo "Press ENTER to continue, Ctrl-C to abort."
  read answer
fi

# Check number of devices
num_devices="`echo $device | wc -w`"

# Set partition naming scheme
#
#   "Partition device names are a combination of the drive's device name and the
#   partition number assigned to them in the partition table, i.e.
#   /dev/drivepartition. For drives whose device name ends with a number, the
#   drive name and partition number is separated with the letter "p", i.e.
#   /dev/driveppartition."
#
#   -- https://wiki.archlinux.org/title/Device_file
#
#if echo $device | grep -q -E 'nvme|mmcblk'; then
if echo $device | grep -q -E '[0-9]$'; then
  partition_separator="p"
else
  partition_separator=""
fi

# RAID: do this instead of regular partitioning.
if [ "$num_devices" != "1" ]; then
  # Force encryption and fix device name.
  encrypt="y"
  physical_devices="$device"
  device="/dev/md/$hostname"

  for dev in $physical_devices; do
    hydra_sudo_run parted -s -- $dev mklabel gpt
    hydra_sudo_run parted -s -- $dev mkpart  ext4 1M   100%
    hydra_sudo_run parted -s -- $dev set     1    raid on
  done

  mdadm --create --verbose $device --level=1 --raid-devices=$num_devices $physical_devices

  # See https://bbs.archlinux.org/viewtopic.php?id=148250
  hydra_sudo_run dd if=/dev/zero of=$device bs=1M count=32

  boot_device="$device"
  syst_device="$device"
else
  # Partition alignment
  # See https://rainbow.chard.org/2013/01/30/how-to-align-partitions-for-best-performance-using-parted/
  #     https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-block
  #     https://people.redhat.com/msnitzer/docs/io-limits.txt
  mebibyte="$((1024*1024))"
  block="`echo $device | sed -e 's|^/dev/||'`"
  optimal_size="`cat /sys/block/$block/queue/optimal_io_size`"

  # Use a default of 1 MiB for the optimal size
  # See https://access.redhat.com/articles/3911611
  #     https://blog.hqcodeshop.fi/archives/273-GNU-Parted-Solving-the-dreaded-The-resulting-partition-is-not-properly-aligned-for-best-performance.html
  #     http://opensource.hqcodeshop.com/Parted%20calculator/parted_mkpart_calc.sh
  if [ "$optimal_size" == "0" ]; then
    optimal_size="$mebibyte"
  fi

  alignment_offset="`cat /sys/block/$block/alignment_offset`"
  block_size="`cat /sys/block/$block/queue/physical_block_size`"
  start="$((($optimal_size + $alignment_offset) / $block_size))"
  optimal_sector_size="$(($optimal_size / $block_size))"

  if [ "$boot_mode" == "bios" ]; then
    # Sector size for a 1MB partition, BIOS mode
    grub_size="$(($mebibyte/$block_size))"
    grub_end="$(($start + $grub_size - 1))"
  else
    # Sector size for a 300MB partition, UEFI mode
    # See https://wiki.archlinux.org/title/Parted#UEFI/GPT_examples
    grub_size="$(($mebibyte/$block_size*300))"
    grub_end="$(($start + $grub_size - 1))"
  fi

  # Regular disk partitioning.
  hydra_sudo_run parted -s -- $device mklabel gpt
  #hydra_sudo_run parted -s -- $device unit   MB mkpart    non-fs 2  3

  if [ "$boot_mode" == "bios" ]; then
    # See https://unix.stackexchange.com/questions/190317/gnu-parted-resizepart-in-script#202872
    #     https://bugs.launchpad.net/ubuntu/+source/parted/+bug/1270203
    #     https://techtitbits.com/2018/12/using-parteds-resizepart-non-interactively-on-a-busy-partition/
    #     https://serverfault.com/questions/870594/resize-partition-to-maximum-using-parted-in-non-interactive-mode
    #hydra_sudo_run parted -s ---pretend-input-tty -- $device mkpart non-fs ${start}s ${grub_end}s Yes
    #hydra_sudo_run parted $device mkpart non-fs ${start}s ${grub_end}s Yes Ignore quit
    #hydra_sudo_run parted -s ---pretend-input-tty $device <<EOF
#mkpart non-fs ${start}s ${grub_end}s
#Yes
#Ignore
#quit
#EOF
    hydra_sudo_run parted -s -- $device mkpart non-fs ${start}s ${grub_end}s

    # Se GRUB flag
    hydra_sudo_run parted -s -- $device set 1 bios_grub on
  else
    esp_device="${device}${partition_separator}1"

    hydra_install_package dosfstools

    hydra_sudo_run parted -s -- $device mkpart fat32 ${start}s ${grub_end}s
    hydra_sudo_run parted -s -- $device set  1 esp on
    hydra_sudo_run parted -s -- $device name 1 ESP
    hydra_sudo_run mkfs.vfat $esp_device
  fi

  # Check alignment
  hydra_sudo_run parted -- $device align-check optimal 1

  if [ "$encrypt" == "y" ]; then
    # Second partition must also be aligned by a multiple of $optimal_sector_size
    # So we find the minimum optimal start sector which is after the grub partition
    #lvm_start="$(($grub_end + 1))"
    lvm_start="`partition_sector_start $start $grub_end $optimal_sector_size`"

    #hydra_sudo_run parted -s -- $device unit MB mkpart ext2 3 -1
    hydra_sudo_run parted -s -- $device mkpart ext2 ${lvm_start}s -1
    hydra_sudo_run parted -s -- $device set    2    lvm on

    # Check alignment
    hydra_sudo_run parted -- $device align-check optimal 2

    boot_device="${device}${partition_separator}2"
    syst_device="${device}${partition_separator}2"
  else
    # Make a 1024MB boot partition
    #boot_start="$(($grub_end + 1))"
    boot_size="1024"
    boot_start="`partition_sector_start $start $grub_end $optimal_sector_size`"
    boot_size="$(($boot_size * $mebibyte / $block_size))"
    boot_end="$(($boot_start + $boot_size -1))"
    #lvm_start="$($boot_end + 1))"
    lvm_start="`partition_sector_start $start $boot_end $optimal_sector_size`"

    #hydra_sudo_run parted -s -- $device unit MB mkpart ext2 3   200
    hydra_sudo_run parted -s -- $device mkpart ext2 ${boot_start}s ${boot_end}s
    hydra_sudo_run parted -s -- $device mkpart ext2 ${lvm_start}s -1
    hydra_sudo_run parted -s -- $device set    3    lvm on

    # Check alignment
    hydra_sudo_run parted -- $device align-check optimal 2
    hydra_sudo_run parted -- $device align-check optimal 3

    boot_device="${device}${partition_separator}2"
    syst_device="${device}${partition_separator}3"
  fi
fi

if [ "$boot_mode" == "bios" ]; then
  hydra_sudo_run parted -s -- $device set 2 boot on
fi

# Take a small break to devices table be updated
sleep 2

# Create volumes.
echo "Creating the needed disk volumes..."

if ! pvdisplay $syst_device &> /dev/null; then
  echo "Creating physical volume..."
  hydra_sudo_run pvcreate $syst_device
fi

if ! vgdisplay $vg &> /dev/null; then
  echo "Creating volume group..."
  hydra_sudo_run vgcreate $vg $syst_device
fi

# Activate volume group
hydra_sudo_run vgchange -a y $vg

# Create swap partition
if [ "$swap_size" != "0" ]; then
  hydra_provision_lvcreate swap $swap_size
fi

# Create root partition.
hydra_provision_lvcreate root $root_size

# Create home partition.
if [ "$home_size" != "0" ]; then
  hydra_provision_lvcreate home $home_size
fi

# Create var partition.
if [ "$var_size" != "0" ]; then
  hydra_provision_lvcreate var  $var_size
fi

# Garbage.
if [ "$garbage" == "y" ]; then
  echo "Filling volumes with garbage..."

  hydra_sudo_run dd if=/dev/urandom of=/dev/mapper/$vg-root

  if [ -b "/dev/mapper/$vg-home" ]; then
    hydra_sudo_run dd if=/dev/urandom of=/dev/mapper/$vg-home
  fi

  if [ -b "/dev/mapper/$vg-var" ]; then
    hydra_sudo_run dd if=/dev/urandom of=/dev/mapper/$vg-var
  fi

  if [ "$swap_size" != "0" ]; then
    hydra_sudo_run dd if=/dev/urandom of=/dev/mapper/$vg-swap
  fi
fi

# Make sure that the mountpoint exists
hydra_sudo_run mkdir -p $WORK

# Setup mountpoint and make sure it's not mounted due to a failed install.
if cat /proc/mounts | cut -d ' ' -f 2 | grep -q "^$WORK$"; then
  hydra_sudo_run umount $WORK

  for folder in proc dev home var boot sys; do
    if cat /proc/mounts | cut -d ' ' -f 2 | grep -q "^$WORK/$folder$"; then
      hydra_sudo_run umount $WORK/$folder
    fi
  done
fi

# Create swap fs.
if [ "$swap_size" != "0" ] && [ "$random_swap" != "y" ]; then
  hydra_cryptsetup                   /dev/mapper/$vg-swap
  hydra_sudo_run cryptsetup luksOpen /dev/mapper/$vg-swap provision-swap
  hydra_sudo_run mkswap              /dev/mapper/provision-swap
fi

# Create root fs
hydra_provision_create_volume root

# Create home fs.
if [ "$home_size" != "0" ]; then
  hydra_provision_create_volume home
fi

# Create var fs.
if [ "$var_size" != "0" ]; then
  hydra_provision_create_volume var
fi

# Mount root volume.
hydra_sudo_run mount $install_device $WORK/

# Mount additional volumes.
if [ "$home_size" != "0" ]; then
  mkdir $WORK/home

  if [ "$encrypt" == "y" ]; then
    hydra_sudo_run mount /dev/mapper/provision-home $WORK/home
  else
    hydra_sudo_run mount /dev/mapper/$vg-home $WORK/home
  fi
fi

if [ "$var_size" != "0" ]; then
  hydra_sudo_run mkdir $WORK/var

  if [ "$encrypt" == "y" ]; then
    hydra_sudo_run mount /dev/mapper/provision-var $WORK/var
  else
    hydra_sudo_run mount /dev/mapper/$vg-var $WORK/var
  fi
fi

# Non-interactive installation
APT_INSTALL="hydra_sudo_run LC_ALL=C DEBIAN_FRONTEND=noninteractive chroot $WORK/ apt-get install"

# Initial system install.
echo "Installing base system..."
hydra_sudo_run LC_ALL=C DEBIAN_FRONTEND=noninteractive debootstrap --force-check-gpg --arch=$arch $version $WORK/ $mirror

# Initial configuration.
echo "Applying initial configuration..."
hydra_sudo_run mount none -t proc     $WORK/proc
hydra_sudo_run mount none -t sysfs    $WORK/sys
hydra_sudo_run mount -o bind /run/    $WORK/run
hydra_sudo_run mount -o bind /dev/    $WORK/dev
hydra_sudo_run mount -o bind /dev/pts $WORK/dev/pts
echo LANG=C | $SUDO tee $WORK/etc/default/locale > /dev/null

# Resolver configuration.
echo "domain $domain"            | $SUDO tee    $WORK/etc/resolv.conf > /dev/null
echo "search $hostname.$domain"  | $SUDO tee -a $WORK/etc/resolv.conf > /dev/null
grep nameserver /etc/resolv.conf | $SUDO tee -a $WORK/etc/resolv.conf > /dev/null

# Hostname configuration.
echo $hostname.$domain     | $SUDO tee    $WORK/etc/hostname > /dev/null
echo "127.0.0.1 localhost" | $SUDO tee -a $WORK/etc/hosts    > /dev/null

# This ordering is important for facter correctly guess the domain name
echo "127.0.0.1 $hostname.$domain $hostname" | $SUDO tee -a $WORK/etc/hosts > /dev/null

# Invert hostname contents to avoid http://projects.puppetlabs.com/issues/2533
tac $WORK/etc/hosts | $SUDO tee $WORK/etc/hosts.new > /dev/null
hydra_sudo_run mv $WORK/etc/hosts.new $WORK/etc/hosts

# Apt
if [ "$version" != "sid" ]; then
  echo "deb http://security.debian.org/debian-security $version-security main contrib non-free"     | $SUDO tee -a $WORK/etc/apt/sources.list
  echo "deb-src http://security.debian.org/debian-security $version-security main contrib non-free" | $SUDO tee -a $WORK/etc/apt/sources.list
fi

# Initial upgrade.
echo "Applying initial upgrades..."
hydra_sudo_run chroot $WORK/ apt-get update
hydra_sudo_run chroot $WORK/ apt-get upgrade -y
$APT_INSTALL locales cryptsetup lvm2 -y

# Crypttab.
echo "Configuring crypttab..."
echo "# <target name> <source device>   <key file>  <options>" | $SUDO tee $WORK/etc/crypttab > /dev/null

if [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee $WORK/etc/crypttab > /dev/null
root            /dev/mapper/$vg-root      none            luks$crypttab_discards
EOF
fi

if [ "$home_size" != "0" ] && [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/crypttab > /dev/null
home            /dev/mapper/$vg-home      none            luks$crypttab_discards
EOF
fi

if [ "$var_size" != "0" ] && [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/crypttab > /dev/null
var             /dev/mapper/$vg-var       none            luks$crypttab_discards
EOF
fi

if [ "$swap_size" != "0" ] && [ "$random_swap" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/crypttab > /dev/null
swap            /dev/mapper/$vg-swap      /dev/random     swap,cipher=aes-xts-plain64:sha256
EOF
fi

if [ "$swap_size" != "0" ] && [ "$random_swap" != "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/crypttab > /dev/null
swap            /dev/mapper/$vg-swap      none        luks,swap
EOF
fi

# Fstab.
echo "Configuring fstab..."
hydra_sudo_run touch $WORK/etc/fstab
#echo "" | $SUDO tee $WORK/etc/fstab > /dev/null
if [ "$swap_size" != "0" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/swap      none           swap  sw                                 0 0
EOF
fi

if [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/root      /              ext4  defaults,errors=remount-ro         0 1
EOF
else
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/$vg-root   /              ext4  defaults,errors=remount-ro         0 1
EOF
fi

if [ "$home_size" != "0" ]; then
  if [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/home      /home          ext4  defaults,errors=remount-ro         0 2
EOF
  else
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/$vg-home   /home          ext4  defaults,errors=remount-ro         0 2
EOF
  fi
fi

if [ "$var_size" != "0" ]; then
  if [ "$encrypt" == "y" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/var       /var           ext4  defaults,errors=remount-ro         0 2
EOF
  else
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
/dev/mapper/$vg-var    /var           ext4  defaults,errors=remount-ro         0 2
EOF
  fi
fi

if [ "$boot_mode" == "uefi" ]; then
  cat <<-EOF | $SUDO tee -a $WORK/etc/fstab > /dev/null
${esp_device}         /boot/efi       vfat  defaults,errors=remount-ro         0 2
EOF
fi

# LVM.
if [ "$discards" == "y" ]; then
  $SUDO sed -i -e 's/issue_discards = 0/issue_discards = 1' $WORK/etc/lvm/lvm.conf
fi

# Boot device must be available before installing kernel and initramfs.
if [ "$grub" == "y" ] && [ "$encrypt" != "y" ]; then
  echo "Boot device setup..."

  hydra_sudo_run mkfs.ext4 $boot_device
  hydra_sudo_run mount     $boot_device $WORK/boot
fi

# Kernel.
echo "Installing kernel..."

cat <<-EOF | $SUDO tee $WORK/etc/kernel-img.conf > /dev/null
do_initrd = Yes
EOF

if [ "$arch" == "i386" ]; then
  kernel_arch="686"
else
  kernel_arch="$arch"
fi

# Kernel.
$APT_INSTALL linux-image-$kernel_arch -y

# Initramfs.
echo "Creating initramfs..."

if [ "$initramfs" == "initramfs-tools" ]; then
  $APT_INSTALL initramfs-tools -y

  cat <<-EOF | $SUDO tee $WORK/etc/initramfs-tools/modules > /dev/null
dm-mod
dm-crypt
dm-raid
aes
sha256
EOF

  if [ -e "$WORK/etc/cryptsetup-initramfs/conf-hook" ]; then
    hydra_sudo_run sed -i -e 's/#CRYPTSETUP=/CRYPTSETUP=y/' $WORK/etc/cryptsetup-initramfs/conf-hook
  fi

  hydra_sudo_run chroot $WORK update-initramfs -u
else
  $APT_INSTALL dracut -y

  # Ensure initramfs-tools is absent
  hydra_sudo_run chroot $WORK apt-get autoremove -y
fi

# Grub.
if [ "$grub" == "y" ]; then
  echo "Setting up GRUB..."

  # Ensure this folder exists
  hydra_sudo_run mkdir $WORK/boot/grub

  if [ "$boot_mode" == "bios" ]; then
    $APT_INSTALL grub-pc -y
  else
    if [ "$arch" == "amd64" ]; then
      grub_arch="x86_64"
    else
      grub_arch="$arch"
    fi

    if [ "$uefi_update_nvram" == "n" ]; then
      grub_uefi_nvram="--no-nvram"
    fi

    if [ "$secure_boot" == "y" ]; then
      $APT_INSTALL grub-efi-${arch}-signed -y
    else
      $APT_INSTALL grub-efi-${arch} -y
    fi

    # Make UEFI partition available
    hydra_sudo_run mkdir $WORK/boot/efi
    hydra_sudo_run mount $esp_device $WORK/boot/efi
  fi

  # Old /etc/default format
  #hydra_sudo_run sed -i -e \
  #  's/^GRUB_CMDLINE_LINUX_DEFAULT="quiet"$/GRUB_CMDLINE_LINUX_DEFAULT="quiet apparmor=1 security=apparmor"/' \
  #  $WORK/etc/default/grub

  cat <<-EOF | $SUDO tee $WORK/etc/default/grub.d/cmdline.cfg > /dev/null
GRUB_CMDLINE_LINUX_DEFAULT="quiet apparmor=1 security=apparmor"
EOF

  hydra_sudo_run chroot $WORK/ update-grub

  if [ "$encrypt" == "y" ]; then
    # Old /etc/default format
    #echo ''                                               | $SUDO tee -a $WORK/etc/default/grub > /dev/null
    #echo '# Full Disk Encryption Support'                 | $SUDO tee -a $WORK/etc/default/grub > /dev/null
    #echo 'GRUB_ENABLE_CRYPTODISK=y'                       | $SUDO tee -a $WORK/etc/default/grub > /dev/null
    #echo 'GRUB_PRELOAD_MODULES="lvm cryptodisk mdraid1x"' | $SUDO tee -a $WORK/etc/default/grub > /dev/null

    cat <<-EOF | $SUDO tee $WORK/etc/default/grub.d/fde.cfg > /dev/null
# Full Disk Encryption Support
GRUB_ENABLE_CRYPTODISK="y"
GRUB_PRELOAD_MODULES="lvm cryptodisk mdraid1x"
EOF

    hydra_sudo_run chroot $WORK/ update-grub

    # Fix menu entry
    hydra_sudo_run sed -i -e "s|root=/dev/mapper/provision-root|root=/dev/mapper/root|g"     $WORK/boot/grub/grub.cfg
    hydra_sudo_run sed -i -e "s|root=/dev/mapper/$hostname-unlocked|root=/dev/mapper/root|g" $WORK/boot/grub/grub.cfg
  fi

  if [ "$boot_mode" == "bios" ]; then
    hydra_sudo_run chroot $WORK/ grub-install --recheck --force $device
  else
    hydra_sudo_run chroot $WORK/ grub-install --target=${grub_arch}-efi --efi-directory=/boot/efi $grub_uefi_nvram
  fi
fi

# Set boot partition config
if [ "$grub" == "y" ] && [ "$encrypt" != "y" ]; then
  # Use UUID
  # Reboot device must be calculated after filesystem creation and grub installation
  #
  # We use lsblk instead of blkid. From blkid(8):
  #
  # When device is specified, tokens from only this device are displayed.  It is
  # possible to specify multiple device arguments on the command line.  If none
  # is given, all devices which appear in /proc/partitions are shown, if they are
  # recognized.
  #
  # Note that blkid reads information directly from devices and for non-root
  # users it returns cached unverified information.  It is better to use lsblk
  # --fs to get a user-friendly overview of filesystems and devices.  lsblk(8)
  # is also easy to use in scripts.  blkid is mostly designed for system services
  # and to test libblkid functionality.
  #reboot_device="`blkid | grep ^$boot_device: | cut -d ' ' -f 2 | sed -e 's/"//g'`"
  #reboot_device="`blkid $boot_device | cut -d ' ' -f 2 | sed -e 's/"//g'`"
  reboot_device="`lsblk $boot_device -n -o UUID`"

  # Use device name: might lead to wrong results
  # During install boot_device might be /dev/sdb2, but on boot be /dev/sda2
  #reboot_device="$boot_device"

  echo "UUID=$reboot_device /boot ext4 defaults,errors=remount-ro 0 2" | $SUDO tee -a $WORK/etc/fstab > /dev/null

  hydra_sudo_run chroot $WORK update-initramfs -u
fi

# Utils.
echo "Installing basic utilities..."
$APT_INSTALL zsh screen cron lsb-release openssl -y

# Networking.
hydra_provision_networking

# SSH.
if [ "$ssh" == "y" ]; then
  echo "Installing OpenSSH daemon..."
  $APT_INSTALL openssh-server -y
  hydra_sudo_run chroot $WORK/ service ssh stop
fi

# Sudo.
echo "Installing sudo..."
$APT_INSTALL sudo -y
echo "%sudo ALL=NOPASSWD: ALL" | $SUDO tee $WORK/etc/sudoers.d/local > /dev/null
$SUDO chmod 440 $WORK/etc/sudoers.d/local

echo "Choose a root password."
hydra_sudo_run chroot $WORK passwd root

# Fingerprints
if [ "$ssh" == "y" ]; then
  hydra_provision_fingerprints
fi

echo "Umounting installation device..."

if [ "$grub" == "y" ] && [ "$encrypt" != "y" ]; then
  hydra_sudo_run umount $WORK/boot
fi

hydra_sudo_run umount $WORK/sys $WORK/proc $WORK/dev/pts $WORK/dev $WORK/run $WORK

if [ "$swap_size" != "0" ]; then
  hydra_sudo_run cryptsetup luksClose provision-swap
fi

if [ "$encrypt" == "y" ]; then
  hydra_sudo_run cryptsetup luksClose provision-root
fi

hydra_sudo_run vgchange -a n $vg

cat <<-EOF

Now proceeed with final steps:

  - Create an user account with sudo privileges.
  - Network setup.
  - Review fstab, crypttab and optional GRUB configuration.

See https://padrao.fluxo.info/install for more information.

If you know what you're doing, you might test and finish the installation using:

  sudo kvm -m 512 -hda $device

EOF