4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
6 # # fai's setup-storage won't do btrfs on luks,
7 # # so we do it ourself :)
20 if ifclass TWO_DISK
; then
23 [[ -e /dev
/md127
]] || partition
=true
24 elif ifclass ONE_DISK
; then
31 # somewhat crude detection of wehter to partition
32 for dev
in ${devs[@]}; do
33 for part
in ${dev}{1,2,3,4}; do
34 [[ -e $part ]] || partition
=true
38 # keyfiles generated like:
39 # head -c 2048 /dev/urandom | od | s dd of=/q/root/luks/host-demohost
40 luks_dir
=/var
/lib
/fai
/config
/distro-install-common
/luks
42 lukspw
=$
(cat $luks_dir/traci
)
44 lukspw
=$
(cat $luks_dir/ian
)
49 ! ifclass tp || letters
=(a b
)
51 md
() { ((${#letters[@]} > 1)); }
54 # if partition with md0, then reboot into the installer,
55 # it becomes md127. So might as well start with 127 for simplicity.
63 # 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
64 swap_end
=$
(( $
(grep ^MemTotal
: /proc
/meminfo|
awk '{print $2}') * 3/(${#letters[@]} * 2 ) / 1000 + boot_end
))MiB
68 for x
in a home root
; do
69 btrfs subvolume list . |
grep "$x$" >/dev
/null || btrfs subvolume create
$x
71 btrfs subvolume set-default \
72 $
(btrfs subvolume list . |
grep 'root$' |
awk '{print $2}') .
80 for dev
in ${devs[@]}; do
81 for x
in /dev
/md
*; do [[ -d $x ]] || mdadm
--stop $x; done
82 for x
in $dev[0-9]; do wipefs
-a $x; done
83 parted
-s $dev mklabel gpt
84 # gpt ubuntu cloud image uses ~4. fai uses 1 MiB. ehh, i'll do 4.
85 # also, using MB instead of MiB causes complains about alignment.
86 parted
-s $dev mkpart primary
"ext3" 4MB
${boot_end}MiB
87 parted
-s $dev set 1 boot on
88 parted
-s $dev mkpart primary
"linux-swap" ${boot_end}MiB
$swap_end
89 parted
-s -- $dev mkpart primary
"" $swap_end -0
90 parted
-s $dev set 3 raid on
91 parted
-s $dev mkpart primary
"" 1MiB
4MiB
92 parted
-s $dev set 4 bios_grub on
93 # the mkfs failed randomly on a vm, so I threw a sleep in here.
98 yes | mdadm
--create /dev
/$crypt --level=raid0
--force --run \
99 --raid-devices=${#devs[@]} ${devs[@]/%/3} ||
[[ $?
== 141 ]]
102 yes YES | cryptsetup luksFormat
/dev
/$crypt $luks_dir/host-
$HOSTNAME \
103 -c aes-cbc-essiv
:sha256
-s 256 ||
[[ $?
== 141 ]]
104 yes "$lukspw" cryptsetup luksAddKey
--key-file \
105 $luks_dir/host-
$HOSTNAME /dev
/$crypt ||
[[ $?
== 141 ]]
106 # this would remove the keyfile. we will do that manually later.
107 # yes 'test' | cryptsetup luksRemoveKey /dev/... \
108 # /key/file || [[ $? == 141 ]]
109 cryptsetup luksOpen
/dev
/$crypt crypt_dev_
$crypt --key-file \
110 $luks_dir/host-
$HOSTNAME
111 parted
${devs[0]} set 1 boot on
112 mkfs.btrfs
-f /dev
/mapper
/crypt_dev_
$crypt
113 mount
/dev
/mapper
/crypt_dev_
$crypt /mnt
116 for dev
in ${devs[@]}; do
120 cryptsetup luksOpen
/dev
/$crypt crypt_dev_
$crypt ||
[[ $?
== 141 ]]
122 mount
-o subvolid
=0 /dev
/mapper
/crypt_dev_
$crypt /mnt
123 # systemd creates subvolumes we want to delete.
124 s
=($
(btrfs subvolume list
--sort=-path /mnt |
125 sed -rn 's#^.*path\s*(root/\S+)\s*$#\1#p'))
126 for subvol
in ${s[@]}; do btrfs subvolume delete
/mnt
/$subvol; done
127 btrfs subvolume set-default
0 /mnt
128 btrfs subvolume delete
/mnt
/root
132 cat > /tmp
/fai
/crypttab
<<EOF
133 crypt_dev_$crypt /dev/$crypt none keyscript=/root/keyscript,discard,luks
136 for dev
in ${devs[@]}; do
137 cat >> /tmp
/fai
/crypttab
<<EOF
138 swap ${dev}2 /dev/urandom swap,cipher=aes-xts-plain64,size=256,hash=ripemd160
142 # this is duplicated in arch-init
143 cat > /tmp
/fai
/fstab
<<EOF
144 /dev/mapper/crypt_dev_$crypt / btrfs noatime,subvol=/root 0 0
145 /dev/mapper/crypt_dev_$crypt /a btrfs noatime,subvol=/a 0 0
146 /dev/mapper/crypt_dev_$crypt /home btrfs noatime,subvol=/home 0 0
147 ${devs[0]}1 /boot ext4 noatime 0 2
151 cat >/tmp
/fai
/disk_var.sh
<<EOF
152 ROOT_PARTITION=\${ROOT_PARTITION:-/dev/mapper/crypt_dev_$crypt}
153 BOOT_PARTITION=\${BOOT_PARTITION:-${devs[0]}1}
154 BOOT_DEVICE=\${BOOT_DEVICE:-"${devs[0]}"}
155 SWAPLIST=\${SWAPLIST:-"${devs[@]/%/2}"}