qubes-doc/en/reference/dom0-tools/qvm-block.md

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---
layout: doc
title: qvm-block
permalink: /en/doc/dom0-tools/qvm-block/
redirect_from:
- /doc/Dom0Tools/QvmBlock/
- /wiki/Dom0Tools/QvmBlock/
---
qvm-block
=========
NAME
----
qvm-block - list/set VM PCI devices.
Date
2012-04-10
SYNOPSIS
--------
qvm-block -l [options]
qvm-block -a [options] \<device\> \<vm-name\>
qvm-block -d [options] \<device\>
qvm-block -d [options] \<vm-name\>
OPTIONS
-------
-h, --help
Show this help message and exit
-l, --list
List block devices
-a, --attach
Attach block device to specified VM
-d, --detach
Detach block device
-f FRONTEND, --frontend=FRONTEND
Specify device name at destination VM [default: xvdi]
--ro
Force read-only mode
--no-auto-detach
Fail when device already connected to other VM
AUTHORS
-------
Joanna Rutkowska \<joanna at invisiblethingslab dot com\>
Rafal Wojtczuk \<rafal at invisiblethingslab dot com\>
Marek Marczykowski \<marmarek at invisiblethingslab dot com\>