前提条件
安装 qemu-utils
# ubuntu
apt-get install qemu-utils挂载
加载 NBD 模块
sudo modprobe nbd连接镜像文件
sudo qemu-nbd -c /dev/nbd0 image.qcow2查看分区
sudo fdisk -l# Output
...
Disk /dev/nbd0: 330 GiB, 354334801920 bytes, 692060160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x75bc9236
Device Boot Start End Sectors Size Id Type
/dev/nbd0p1 * 64 692056063 692056000 330G 7 HPFS/NTFS/exFAT
...挂载（根据分区类型）
sudo mkdir /mnt/qcow2-disk1
sudo mount /dev/nbd0p1 /mnt/qcow2-disk1卸载
卸载分区
sudo umount /mnt/qcow2-disk1卸载 nbd 设备
sudo qemu-nbd -d /dev/nbd0