Mount VHDX

MountQemuNBD.sh

#!/bin/bash
#TODO: Fix documentation
#TODO: Add an option for RW/RO
#TODO: Add tests to make sure there are no errors
    # https://stackoverflow.com/questions/22009364/is-there-a-try-catch-command-in-bash
    # https://stackoverflow.com/questions/15656492/writing-try-catch-finally-in-shell
    # https://mywiki.wooledge.org/BashFAQ/105
#TODO: Select nbd device alone
#TODO: Translate this python code into bash: https://github.com/rhyven/MountNBD/blob/master/MountNBD.py

# Install

# install qemu utils
# sudo apt install qemu-utils

# install nbd client
# sudo apt install nbd-client

# Check if admin. If not, exit
if [ "$(id -u)" != "0" ]; then
    echo "This script needs to be run as admin"
    exit 126
fi
# Mount
VHDX_IMG="$1"
MOUNT_POINT="$2"

# sudo umount "$MOUNT_POINT" && sudo qemu-nbd -d /dev/nbd0 && sudo rmmod nbd
# sudo pkill qemu-nbd

# [ubuntu] How do you mount a VHD image
# https://ubuntuforums.org/showthread.php?t=2299701
#

target_drive=""
get_nbd_dev(){
    # Initialize variables
    target_drive="" #TODO: Change to local instead of the global variable
    local nbd_drive=0

    # Loop until a suitable NBD device is found
    while [ -z "$target_drive" ]; do
        # Check the size of the current NBD device
        drive_size=$(blockdev --getsize64 "/dev/nbd$nbd_drive")
        local ERROR=$?
        if [ $? -eq 1 ]; then
            echo "ERROR: blockdev: $ERROR"
            exit "$ERORR"
        fi
        echo "Debug: drive size: $drive_size"

        # If the drive size is 0, it's an empty NBD device
        if [ "$drive_size" -eq 0 ]; then
            # Set the target drive and log the information
            target_drive="/dev/nbd$nbd_drive"
            echo "nbd$nbd_drive is empty; using $target_drive as the target drive." >&2
        else
            # Try the next NBD device
            echo "nbd$nbd_drive is already mapped to a file; trying the next one..." >&2
            ((nbd_drive++))
        fi
    done

#     echo "DEBUG: get_nbd_dev result: $target_drive"
#     return $target_drive
}
# Load the nbd kernel module.
rmmod nbd
rmmodError="$?"
if [ $rmmodError -ne 0 ]; then
    if [ $rmmodError -ne 1 ]; then
        echo "ERROR: rmmod $rmmodError"
        exit $rmmodError
    fi
fi

modprobe nbd max_part=16

get_nbd_dev
# echo "DEBUG: target_drive: $target_drive"
# mount block device
qemu-nbd -c $target_drive "$VHDX_IMG" #|| exit $?

# reload partition table
partprobe $target_drive

message="Done. Mounted $VHDX_IMG on $MOUNT_POINT with "
# mount partition
if [ "$3" == "--rw" ]; then
    mount -t ntfs -o rw,nouser "$target_drive"p2 "$MOUNT_POINT"
    message+="Read/Write mode"
else
    mount -t ntfs -o ro,nouser "$target_drive"p2 "$MOUNT_POINT"
    message+="Read only mode"
fi

echo "$message"

# Unmount
# MOUNT_POINT="$1"

#unmount & remove nbd module
# sudo umount "$MOUNT_POINT" && sudo qemu-nbd -d /dev/nbd0 && sudo rmmod nbd
# sudo pkill qemu-nbd

mountVHDXguestmount.sh

#Packages:
#libguestfs
#qemu
#supermin
#libselinux
#libguestfs-devel
#wget
# Hints:
#
# Run it as normal user, i.e.:
#
# guestmount ...
# Instead of:
#
# sudo guestmount ...
# Switches; citations from man page:
#
# --add
# Add a block device or virtual machine image.
#
# --inspector
# Using virt-inspector(1) code, inspect the disks looking for an operating system and mount filesystems as they would be mounted on the real virtual machine.
#
# --ro
# Add devices and mount everything read-only. Also disallow writes and make the disk appear read-only to FUSE.
#
# Test:
# libguestfs-test-tool


# FIXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# sudo
# export LIBGUESTFS_PATH=/usr/lib/guestfs
# guestfish --rw -a /media/DATA/data.vhdx
#
# Welcome to guestfish, the guest filesystem shell for
# editing virtual machine filesystems and disk images.
#
# Type: ‘help’ for help on commands
#       ‘man’ to read the manual
#       ‘quit’ to quit the shell
#
# Welcome to guestfish, the guest filesystem shell for
# editing virtual machine filesystems and disk images.
#
# Type: ‘help’ for help on commands
#       ‘man’ to read the manual
#       ‘quit’ to quit the shell
#
# ><fs> run
# ><fs> list-filesystems
# /dev/sda2: ntfs
# virt-filesystems -d MyGuest
# ><fs> exit
# FIXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
export LIBGUESTFS_PATH=/usr/lib/guestfs  # Adjust path as needed
# export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1
#if root
if [ $(id -u) = "0" ]; then
    if [ ! -d "/usr/lib/guestfs" -or "$1" == "-f" ]; then

        mkdir -p /usr/lib/guestfs
        update-libguestfs-appliance
    else
        echo "The directory /usr/lib/guestfs exists. Exiting without doing anything. If you want to re-update appliance run as sudo with -f"
    fi
    echo "Run the script again without admin inorder to mount the VHDX"
else
#     guestmount --add /media/DATA/data.vhdx --inspector --ro /media/VHDX
#     guestmount --add /media/DATA/data.vhdx -o uid=1000 -o gid=1000 -o allow_other --rw /media/VHDX/ -m /dev/sda2
#     guestmount --add /media/DATA/data.vhdx --rw /media/VHDX/ -m /dev/sda2
#     guestmount --add "$1" --inspector --ro /mnt
        guestmount -a "$1" -m /dev/sda -o uid=1000 -o gid=1000 --rw /media/VHDX/
fi

UMountQemuNBD.sh

#!/bin/bash

# Check if admin. If not, exit
if [ "$(id -u)" != "0" ]; then
    echo "This script needs to be run as admin"
    exit 126
fi

MOUNT_POINT="$1"
NBD_DEVICE="$2"

echo "1: $1"
echo "2: $2"

#if $2 is not set
if [[ -z $2 ]]; then
    echo "usage: UMountQemuNBD <MOUNT_POINT> <NBD_DEVICE>"
    exit 1
fi

#unmount & remove nbd module
umount "$MOUNT_POINT" && sudo qemu-nbd -d "$NBD_DEVICE" && sudo rmmod nbd
pkill qemu-nbd

message="Done."
echo "$message"