From 2e43d4f85526a9925416f5f8f11a9e5de89227b5 Mon Sep 17 00:00:00 2001
From: Gardouille <gardouille@gmail.com>
Date: Wed, 21 Oct 2020 09:19:55 +0200
Subject: [PATCH] Test if Luks is available and try to open it

---
 debian/chroot.mount | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/debian/chroot.mount b/debian/chroot.mount
index 9baa669..8a9a5f3 100755
--- a/debian/chroot.mount
+++ b/debian/chroot.mount
@@ -20,6 +20,28 @@ new_hostname=""
 vgname=$(vgdisplay --short | tail -n 1 | sed 's/.*"\(.*\)" .*/\1/')
 ## If the script should create extra volume (eg. backup, virt, Proxmox,…)
 manage_extra_lv=0
+## Is LUKS {{{
+if blkid | grep "${hdd}.*crypto_LUKS"; then
+	manage_luks=0
+	## You need to set a new passphrase after the installation or at least change this one
+	luks_passphrase="generic key"
+	luks_key_file="/tmp/luks.keyfile.temp"
+	luks_pv_name=$(basename "${hdd}"2_crypt)
+else
+	manage_luks=1
+fi
+## }}}
+## Open LUKS system {{{
+if [ "${manage_luks}" -eq 0 ]; then
+	### Put passphrase in a keyfile for multiple usage
+	rm -f -- "${luks_key_file}" && printf '%b\n' "${luks_passphrase}" > "${luks_key_file}"
+	### If the volume is not already opened
+	if [ ! -h /dev/mapper/"${luks_pv_name}" ]; then
+		### Open LUKS system
+		cryptsetup luksOpen "${hdd}"2 "${luks_pv_name}" --key-file "${luks_key_file}" || exit 2
+	fi
+fi
+## }}}
 ## Is BTRFS {{{
 root_fs_type=$(lsblk -f /dev/mapper/"${vgname}"-root | awk '/root/ { print $2 }')
 if [ "${root_fs_type}" = "btrfs" ]; then