UML_MCONSOLE(1) General Commands Manual UML_MCONSOLE(1)
uml_mconsole -- attach to the management console of a user-mode Linux
uml_mconsole [socket] [command ...]
This manual page documents briefly the uml_mconsole command.
This manual page was written for the Debian GNU/Linux distribution
because the original program does not have a manual page.
uml_mconsole is a program to connect to the management console of a
user-mode Linux kernel. The UML management console is a low-level
interface to the kernel, somewhat like the i386 SysRq interface. Since
there is a full-blown operating system under UML, there is much greater
flexibility possible than with the SysRq mechanism.
socket The pathname of the socket to which to connect. This is
printed when UML boots, for example:
mconsole initialized on /tmp/umlNJ32yL/mconsole
In this example, you would start uml_mconsole like this:
command Any of the commands listed in the "COMMANDS" section.
version Prints the UML version number.
halt Shuts down the UML system immediately, without syncing disks
or cleanly shutting down swap space.
reboot Reboots the UML system immediately, without syncing disks or
cleanly shutting down swap space.
Cause UML to log string to the kernel log.
cad Invokes the Control-Alt-Delete handler.
Performs the SysRq action controlled by letter.
stop Pauses UML. UML will do nothing until the 'go' command is
go Resumes execution after a 'stop' command.
Adds a new device to the virtual machine, or queries the con-
figuration of an existing device. It takes one argument,
which is either the device to add, with the same syntax as
the kernel command line, or the name of an existing device.
remove Deletes a device from the virtual machine. Its argument is
the name of the device to be removed. In the case of the ubd
driver, the removed block device must not be mounted, swapped
on, or otherwise open, and in the case of the network driver,
the device must be down.
The UserModeLinux-HOWTO (link to URL http://user-mode-linux.source-
uml_mconsole was written by Jeff Dike and others.
This manual page was written by Matt Zimmerman firstname.lastname@example.org for the
Debian GNU/Linux system, based on material in the UserModeLinux-HOWTO
by Rusty Russell, and the uml_mconsole source code.