convert to p3 only writing

CloneToDisk.sh

@@ -8,6 +8,7 @@ GREEN='\e[32m'
 YELLOW='\e[33m'
 RESET='\e[0m'
 
+
 # root check
 if [[ $EUID -ne 0 ]]; then
     echo -e "${RED}You must be root to do this." 1>&2
@@ -17,6 +18,7 @@ fi
 mount_points=("/dev" "/dev/pts" "/proc" "/sys" "/sys/firmware/efi/efivars" "/run")
 NO_WRITE=false
 
+
 # arguments
 for arg in "$@"; do
     case $arg in
@@ -24,6 +26,10 @@ for arg in "$@"; do
             NO_WRITE=true
             shift
             ;;
+        --noretable)
+            NO_RETABLE=true
+            shift
+            ;;
         -h)
             printf "%-20s %s\n" "Flags:" "Description:"
             echo
@@ -52,6 +58,7 @@ cleanup() {
 }
 trap 'echo "Status Code: $?"; cleanup;' EXIT
 
+
 get_partition() {
     local disk_name="$1"
     local part_num="$2"
@@ -61,25 +68,52 @@ get_partition() {
       | awk '$2=="part"{print $1}' \
       | sed -n "${part_num}p"
     )"
+
     printf "$part_path"
 }
 
+
+get_partuuid() {
+  local disk_name="$1"
+  local part_num="$2"
+
+  local part_uuid="$(
+    lsblk -ln -o PATH,PARTUUID $disk_name | awk '$1==$(get_partition $disk_name $part_num) {print $2}'
+  )"
+
+  printf "$part_uuid"
+}
+
+
 # Set your target disk here
 udevadm trigger
 
 lsblk
 echo
 
-
-
 read -rp "Enter the target disk (e.g., sda): " disk_suffix
 disk_name="/dev/${disk_suffix}"
 
 echo "Chose disk $disk_name"
 echo
 
+
+if [[ $NO_RETABLE == true ]]; then
+    echo -e "${YELLOW}--noretable is specified. Tables will not be erased and no partitions will be created${RESET}"
+  else 
+    sgdisk -Z $disk_name
+
+    sgdisk -c $disk_name
+
+    sgdisk -n 1:1MiB:+512M -t 1:ef00 -c 1:"EFI System" $disk_name
+    sgdisk -n 2:0:+1G -t 2:8300 -c 2:"boot" $disk_name
+    sgdisk -n 3:0:0 -t 3:8e00 -c 3:"Linux LVM" $disk_name
+
+    partprobe || true
+fi
+
 if [[ $NO_WRITE == true ]]; then
-    echo -e "${YELLOW}--nowrite is specified no need for Img no disks will be written to${RESET}"
+    echo -e "${YELLOW}--nowrite is specified. No need for Img no disks will be written to${RESET}"
   else
     read -rp "Enter the name of the usb partition in /dev/mapper (e.g., sda1): " disk_suffix
 
@@ -99,27 +133,17 @@ else
     mount $usb_name /mnt/ventoy
     cd /mnt/ventoy/Images
 
-    echo "Writing image to $disk_name..."
+    echo "Writing image to $(get_partition $disk_name "3")..."
-    lz4 -dc PBX.img.lz4 | dd of=$disk_name status=progress
+    lz4 -dc PBX.img.lz4 | dd of=$(get_partition $disk_name "3") status=progress
+
+    partprobe || true
 fi
 
 
-# Repartition disk using sgdisk
-echo "Repairing partition tables"
-sgdisk -e $disk_name || true
-sgdisk -v $disk_name
-
-partprobe || true
-
-echo "Expanding Partition 3 on $disk_name..."
-sgdisk --delete=3 $disk_name
-sgdisk --new=3:0:0 --typecode=3:8e00 --change-name=3:"Linux LVM" $disk_name
-
-partprobe || true
-
 # Resize physical volume
 echo "Resizing physical volume..."
-pvresize "$(get_partition $disk_name "3")" || true
+pvresize $(get_partition $disk_name "3") || true
+
 
 # Resize swap and root logical volumes
 echo "Resizing swap and root volumes..."
@@ -128,18 +152,27 @@ lvresize -l +100%FREE --resizefs PBX-vg/root
 
 
 # Mount restored system for chroot
+mount_path="/mnt/debian"
 echo "Mounting restored system..."
-mkdir -p /mnt/debian
+mkdir -p $mount_path
-mount /dev/mapper/PBX--vg-root /mnt/debian/
+mount /dev/mapper/PBX--vg-root $mount_path
-mount "$(get_partition $disk_name "2")" /mnt/debian/boot
+mount $(get_partition $disk_name "2") ${mount_path}/boot
-mount "$(get_partition $disk_name "3")" /mnt/debian/boot/efi
+mount $(get_partition $disk_name "1") ${mount_path}/boot/efi
 
+for i in "${mount_points[@]}"; do mount -B $i ${mount_path}${i}; done
+
+echo "Generating fstab..."
+boot_uuid=$()
+
+cp ./fstab.template ${mount_path}/etc/fstab
+
+sed --in-place "s/boot_uuid/$(get_partuuid $disk_name "2")/g" ${mount_path}/etc/fstab
+sed --in-place "s/efi_uuid/$(get_partuuid $disk_name "1")/g" ${mount_path}/etc/fstab
 
-for i in "${mount_points[@]}"; do mount -B $i /mnt/debian$i; done
 
 # Chroot and reinstall GRUB
 echo "Entering chroot to reinstall GRUB..."
-chroot /mnt/debian /bin/bash -c "
+chroot $mount_path /bin/bash -c "
 grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=debian
 update-grub
 "