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add documentation for accessing VM console

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Your Name 2019-10-19 06:27:02 +02:00
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# Connect to a VM console
In some cases it's not possible to use a standard graphical terminal emulator to interact with a VM. In this case, "serial console" access is still available using two tools.
## qvm-console-dispvm
Usage: `qvm-console-dispvm VMNAME`
Launches a DispVM connected to the VM's console, using the qubes.ShowInTerminal RPC service. This provides a full-featured console.
At the time of writing this command contains a bug whose fix is waiting on release, therefore it may be necessary to use the following.
## xl console
Usage: `sudo xl console VMNAME`
Uses Xenlight to directly access the VM console from dom0. For [security reasons](https://github.com/QubesOS/qubes-vmm-xen/blob/xen-4.8/patch-tools-xenconsole-replace-ESC-char-on-xenconsole-outp.patch) this console is deliberately limited in what it can display.
Line-by-line text will work fine, but if a Curses-style pseudo-graphical-interface comes up the output will be garbled and you will need a tool like [asciinema](https://asciinema.org/) to untangle it.