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# Separate encrypted root FS and /home partitions, and transient swap --
# the latter two are not unlocked at initramfs stage but later in the
# boot process. This environment also uses sysvinit as PID1 so we can
# test our init scripts.
sfdisk --append /dev/vda <<-EOF
unit: sectors
start=$((64*1024*2)), size=$((128*1024*2)), type=${GUID_TYPE_Linux_FS}
start=$(((64+128)*1024*2)), size=$((64*1024*2)), type=${GUID_TYPE_LUKS}
start=$(((64+128+64)*1024*2)), size=$((64*1024*2)), type=${GUID_TYPE_DMCRYPT}
start=$(((64+128+64+64)*1024*2)), type=${GUID_TYPE_LUKS}
EOF
udevadm settle
# initialize a new LUKS partition and open it
echo -n "topsecret" >/rootfs.key
cryptsetup luksFormat --batch-mode \
--key-file=/rootfs.key \
--type=luks2 \
--pbkdf=argon2id \
--pbkdf-force-iterations=4 \
--pbkdf-memory=32 \
-- /dev/vda5
cryptsetup luksOpen --key-file=/rootfs.key --allow-discards \
-- /dev/vda5 "vda5_crypt"
udevadm settle
cryptsetup open --type=plain --key-file=/dev/urandom --allow-discards \
-- /dev/vda4 "vda4_crypt"
udevadm settle
mke2fs -Ft ext4 /dev/mapper/vda5_crypt
mount -t ext4 /dev/mapper/vda5_crypt "$ROOT"
mkdir "$ROOT/boot"
mke2fs -Ft ext2 -m0 /dev/vda2
mount -t ext2 /dev/vda2 "$ROOT/boot"
mkswap /dev/mapper/vda4_crypt
swapon /dev/mapper/vda4_crypt
# vim: set filetype=sh :
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