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Diffstat (limited to 'public_hurd_boxen/xen_handling.mdwn')
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1 files changed, 31 insertions, 0 deletions
diff --git a/public_hurd_boxen/xen_handling.mdwn b/public_hurd_boxen/xen_handling.mdwn new file mode 100644 index 00000000..8407cd58 --- /dev/null +++ b/public_hurd_boxen/xen_handling.mdwn @@ -0,0 +1,31 @@ +[[!meta copyright="Copyright © 2009 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +# domU consoles + +To avoid any complications with people trying to use the same console at the +same time, please use this command for attaching to a domU's console (this +command line will also start the domU in case that it isn't running already): + + $ host=[domU] && sudo screen -DRRS console-$host sh -c "xm console $host || xm create -c $host" + +Otherwise, if one attaches to the same console twice, the second instance will +in fact forward input to the domU (possibly infering with what the person is +doing on the first instance), but the output won't be sent back to the second +instance. + +After having typed this once, Bash's `reverse-search-history` (`C-r`), followed +by typing in `host=flubber`, for example, will be enough to get access to +that machine's console. + +/!\ TODO: How does one get the environment variables `COLUMNS` and `LINES` set +properly when using `xm console`? This is relevant for everything using +`(n)curses` -- for interactive console applications. Using `export COLUMNS=143 +LINES=44` does work, but is a manual process. |