From ebf58d2856976f568dac58dfc241bf6ba59179c8 Mon Sep 17 00:00:00 2001
From: Kris Lamoureux <kris@lamoureux.io>
Date: Tue, 29 Nov 2022 00:11:24 -0500
Subject: [PATCH] testing

---
 debianzfs.sh | 52 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 33 insertions(+), 19 deletions(-)

diff --git a/debianzfs.sh b/debianzfs.sh
index cfbcb1d..c8f588f 100755
--- a/debianzfs.sh
+++ b/debianzfs.sh
@@ -97,16 +97,6 @@ function create_root_pool () {
 		rpool $2
 }
 
-function mirror_grub () {
-	DISK1=$(disk_by_id "$1")
-	DISK2=$(disk_by_id "$2")
-	umount /boot/efi
-	dd if="${DISK1}-part2" of="${DISK2}-part2"
-	efibootmgr -c -g -d "$DISK2" -p 2 \
-		-L "debian-${3}" -l '\EFI\debian\grubx64.efi'
-	mount /boot/efi
-}
-
 function disk_by_id () {
 	disk_check "$1"
 	OUTPUT=$(find /dev/disk/by-id -lname "../../$(basename "$1")" | tail -n1)
@@ -117,6 +107,29 @@ function disk_by_id () {
 	echo "$OUTPUT"
 }
 
+function part_by_uuid () {
+	OUTPUT=$(
+		blkid -s UUID | grep -e "^${1}.*${2}: UUID=" | \
+		awk '{ print substr($2, 7, length($2)-7) }'
+	)
+
+	if [ -z "$OUTPUT" ]; then
+		echo "ERROR: No disk by-uuid label found for: ${1}, partition ${2}"
+		exit 1
+	fi
+	echo "/dev/disk/by-uuid/$OUTPUT"
+}
+
+function mirror_grub () {
+	DISK1_PART2="$(part_by_uuid "$1" 2)"
+	DISK2_PART2="$(part_by_uuid "$2" 2)"
+	umount /boot/efi
+	dd if="$DISK1_PART2" of="$DISK2_PART2"
+	efibootmgr -c -g -d "$DISK2" -p 2 \
+		-L "debian-${3}" -l '\EFI\debian\grubx64.efi'
+	mount /boot/efi
+}
+
 ################
 ### Settings ###
 ################
@@ -212,7 +225,7 @@ fi
 ###############################################
 
 # Display commands
-set -x
+set -xe
 
 # 1. Boot the Debian GNU/Linux Live CD... done
 # 2. Setup and update the repositories
@@ -239,20 +252,21 @@ swapoff --all
 # 3. Partition your disk(s)
 # UEFI booting + boot pool + ZFS native encryption
 disk_format "$DISK"
-DISK_BYID=$(disk_by_id "$DISK")
 if [ -n "$MIRROR" ]; then
 	disk_format "$MIRROR"
-	MIRROR_BYID=$(disk_by_id "$MIRROR")
 fi
+sleep 5
 
 # 4. Create the boot pool
 # 5. Create the root pool
 if [ -z "$MIRROR" ]; then
-	create_boot_pool "$ZFSROOT" "${DISK_BYID}-part3"
-	create_root_pool "$ZFSROOT" "${DISK_BYID}-part4" "$RPOOLPW"
+	create_boot_pool "$ZFSROOT" "$(part_by_uuid "$DISK" 3)"
+	create_root_pool "$ZFSROOT" "$(part_by_uuid "$DISK" 4)" "$RPOOLPW"
 else
-	create_boot_pool "$ZFSROOT" "mirror ${DISK_BYID}-part3 ${MIRROR_BYID}-part3"
-	create_root_pool "$ZFSROOT" "mirror ${DISK_BYID}-part4 ${MIRROR_BYID}-part4" "$RPOOLPW"
+	create_boot_pool "$ZFSROOT" \
+		"mirror $(part_by_uuid "$DISK" 3) $(part_by_uuid "$MIRROR" 3)"
+	create_root_pool "$ZFSROOT" \
+		"mirror $(part_by_uuid "$DISK" 4) $(part_by_uuid "$MIRROR" 4)" "$RPOOLPW"
 fi
 
 ###################################
@@ -353,8 +367,8 @@ if [ -n "$MIRROR" ]; then
 	#!/bin/bash
 	# Post-install GRUB mirror helper script
 	/usr/local/bin/debianzfs \
-		-gm $(disk_by_id "$MIRROR") \
-		$(disk_by_id "$DISK")
+		-gm "$MIRROR_PART2_BYUUID" \
+		"$DISK_PART2_BYUUID"
 	GRUBMIRROR
 fi