nvme-install.sh

#!/usr/bin/env sh
# Define source and target disks
DEVICE="/dev/nvme0n1"

# Ensure the script is run as root
if [ "$(id -u)" -ne 0 ]; then
    echo "This script must be run as root"
    exit 1
fi

OLD_BOOT=$(mount | grep "on /boot/boot " | awk '{print $1}')
OLD_DEVICE=$(mount | grep "on /boot/boot " | awk '{print $1}' | sed 's/p[0-9]*//g')

dd if=/dev/zero of="${DEVICE}" count=4096 bs=512 2> /dev/null
# Create a partition table on the target disk
parted --script "${DEVICE}" \
    mklabel gpt \
    mkpart primary fat32 1MiB 200MiB \
    mkpart primary 200MiB 100%


BOOT=$(fdisk -l "${DEVICE}" | grep "${DEVICE}" |  sed -n 2p | awk '{print $1}')
VOLUME=$(fdisk -l "${DEVICE}" | grep "${DEVICE}" |  sed -n 3p | awk '{print $1}')


# create the boot partition
mkfs.vfat -F32 -n boot "${BOOT}"

mkdir -p /mnt/target/boot
mount "${BOOT}" /mnt/target/boot
rsync -axHAWX --numeric-ids --info=progress2 /boot/boot /mnt/target/boot
umount /mnt/target/boot
rm -rf /mnt/target/

PV_TO_REMOVE=$(pvs --noheadings|grep -v $DEVICE|awk '{print $1}')
pvcreate "${VOLUME}"
vgextend rk1 "${VOLUME}"
pvmove "${PV_TO_REMOVE}"
vgreduce rk1 "${PV_TO_REMOVE}"
pvremove "${PV_TO_REMOVE}"

umount /boot/boot
blkdiscard "${OLD_DEVICE}"

# Format and make file systems - adjust these as per your specific setup
# Example: assuming the first partition is root (`/`) and formatted as ext4

# Mount the target filesystem to copy files


# Mount necessary directories and chroot into new environment

echo "Migration from MMC disk to NVMe disk completed successfully!"
echo "U-boot is still configured to boot from the MMC disk"