diff options
| author | Vincent Whitchurch <vincent.whitchurch@axis.com> | 2022-03-10 13:42:30 +0100 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2022-03-11 13:51:03 -0700 |
| commit | 89ee9301ac16d848d8dccf378d6ab3266fa80f62 (patch) | |
| tree | 83ce3d580473e84e972856f2b8a7b3f942698930 /Documentation/virt | |
| parent | ffce1439fe31590fdbacf17b638f2d62efebf02d (diff) | |
docs: UML: Mention telnetd for port channel
It is not obvious from the documentation that using the "port" channel
for the console requires telnetd to be installed (see port_connection()
in arch/um/drivers/port_user.c). Mention this, and the fact that UML
will not boot until a client connects.
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Acked-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20220310124230.3069354-1-vincent.whitchurch@axis.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/uml/user_mode_linux_howto_v2.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/virt/uml/user_mode_linux_howto_v2.rst b/Documentation/virt/uml/user_mode_linux_howto_v2.rst index 2cafd3c3c6cb..d5ad96c795f6 100644 --- a/Documentation/virt/uml/user_mode_linux_howto_v2.rst +++ b/Documentation/virt/uml/user_mode_linux_howto_v2.rst @@ -664,7 +664,11 @@ one is input, the second one output. * The fd channel - use file descriptor numbers for input/output. Example: ``con1=fd:0,fd:1.`` -* The port channel - listen on TCP port number. Example: ``con1=port:4321`` +* The port channel - start a telnet server on TCP port number. Example: + ``con1=port:4321``. The host must have /usr/sbin/in.telnetd (usually part of + a telnetd package) and the port-helper from the UML utilities (see the + information for the xterm channel below). UML will not boot until a client + connects. * The pty and pts channels - use system pty/pts. |