qemu-nbd

qemu-nbd

• Man: https://manpages.debian.org/testing/qemu-utils/qemu-nbd.8.en.html
• https://gist.github.com/shamil/62935d9b456a6f9877b5
• qemu-nbd --help

• modprobe nbd max_part=8

Examples

• qemu-nbd --connect=/dev/nbd0 /var/lib/libvirt/images/your_image.qcow2
• qemu-nbd: Failed to open /dev/nbd0: No such file or directory
• qemu-nbd: Disconnect client, due to: Failed to read request: Unexpected end-of-file before all bytes were read

Solution

• modprobe nbd max_part=8

• fdisk -l /dev/nbd0

• fsck -y /dev/nbd0pXXXX

qemu-nbd --disconnect /dev/nbd0
/dev/nbd0 disconnected

Related terms

• guestmount
• guestfish
• fsck

See also

• HDD, S.M.A.R.T., hdparm, udisksctl, CHS, ata, smartctl, WD Elements Desktop Hard Drive
• QEMU: qemu-img, qemu-ga, qemu.conf, virsh qemu, QEMU guest agent (qemu-ga), qcow2, qemu-nbd, qemu-img map, qemu-io, /etc/libvirt/qemu.conf, QEMU releases, VENOM, qemu-nbd --help, qemu-system