Table of Contents
Overview
gnu.offbyone.lan is a LAIR pod X network resource, an attempt to replace the flakey wildebeast.
hostname | RAM | disk | swap | OS | Kernel |
---|---|---|---|---|---|
wildebai.offbyone.lan | 512MB | 4GB (/) | 256MB | Debian 6.0 “Squeeze” (AMD64) | 2.6.32-5-xen-amd64 |
antelope.offbyone.lan | 512MB | 4GB (/) | 256MB | ||
gnu.offbyone.lan | 512MB | 4GB (/) | 256MB | ||
wildgoat.offbyone.lan | 512MB | 4GB (/) | 256MB |
News
- 02/05/2010 - gnu.offbyone.lan created.
- 02/07/2010 - wildebai, antelope, and wildgoat created (duplicates of gnu)
- 02/11/2011 - gnu.offbyone.lan recreating running Debian squeeze.
- 02/19/2011 - all wildebeest herd are now squeeze-based VMs (duplicates of gnu)
TODO
- Lots to do
- finish setting up X config (Xresources)
- connect with Xnest
- set up user menu
Network Configuration
Machine | Interface | IP Address | MAC Address |
---|---|---|---|
antelope.offbyone.lan | eth0 | 10.80.2.30 | 00:16:3e:2e:d0:1e |
wildgoat.offbyone.lan | eth0 | 10.80.2.31 | 00:16:3e:2e:d0:1f |
gnu.offbyone.lan | eth0 | 10.80.2.32 | 00:16:3e:2e:d0:20 |
wildebai.offbyone.lan | eth0 | 10.80.2.33 | 00:16:3e:2e:d0:21 |
Packages
The following packages have been installed on gnu:
- lair-std lair-vm lair-nfs lair-ldap lair-autofs lair-mail lair-backup
- xpdf xterm rxvt-unicode build-essential dump fluxbox iceweasel imagemagick
- oneko xbase-clients lyx openoffice.org-calc openoffice.org-writer
- xdm xfonts-utils xfonts-scalable xfonts-encodings xfonts-75dpi xfonts-100dpi
- xautomation xpaint xscreensaver xwit x11vnc tightvncserver a2ps gs mpage
- recode enscript xvnc4viewer openoffice.org-writer2latex chromium-browser
Xen Configuration
gnu is a Xen virtual machine. Pertinent configuration information follows:
Creation
gnu.offbyone.lan recreated on sokraits on 02/11/2011:
sokraits:~$ sudo xen-create-image --hostname=gnu --mac 00:16:3E:2E:d0:20 --role=udev
Configuration
The Xen config file for this VM is as follows:
- gnu.cfg
########################################################################## # LAIR Xen VM configuration file (gnu.offbyone.lan) ########################################################################## ################################################# # Kernel + memory size # bootloader = '/usr/lib/xen-default/bin/pygrub' vcpus = '2' memory = '512' ################################################# # Disk device(s). # root = '/dev/xvda1 ro' disk = [ 'file:/xen/images/gnu.disk,xvda1,w', 'file:/xen/images/gnu.swap,xvda2,w' ] ################################################# # Hostname # name = 'gnu' ################################################# # Networking # dhcp = 'dhcp' vif = [ 'mac=00:16:3E:2E:d0:20' ] ################################################# # Behaviour # on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart'
Invalid Data below
The information that follows is a combination of invalid data– ie it does not pertain to the wildebeest machines, or is in need of updating (ie the xdm stuff).
initrd
In /root/initrd, it looks like we have to make the following change:
server=10.80.2.3 # nfs serves the client image via nfs
As it was set to wildebeast— so after all that effort, the initrd the clients pulled down pointed them back at wildebeast.
building the gnu initrd
Run /root/doinitrd.sh
This will recreate it, and copy it into /export/tftpboot, allowing for clients to utilize it.
X config bits
In /export/client/etc/rc.local on gnu, there's a line nearly at the end of this file that needs to be changed:
FLAKEID="`ifconfig eth0|grep 'inet addr'|cut -d':' -f2|cut -d' ' -f1|cut -d'.' -f4`" XHOSTID="`echo $(($FLAKEID % 4))`" if [ "$XHOSTID" -eq 0 ]; then XRESHOST="wildebai" elif [ "$XHOSTID" -eq 1 ]; then XRESHOST="antelope" elif [ "$XHOSTID" -eq 2 ]; then XRESHOST="gnu" else XRESHOST="wildgoat" fi X -ac -query ${XRESHOST}.offbyone.lan :0 vt7 &
As it was set to wildebeast.
xdm config
All these are in /etc/X11/xdm/ on gnu..
xdm-config
In /etc/X11/xdm/xdm-config, the very last line in the file needs to be commented out (! is the comment character here), so:
DisplayManager.requestPort: 0
Needs to become:
!DisplayManager.requestPort: 0
Xaccess
In /etc/X11/xdm/Xaccess, have a line to uncomment:
* #any host can get a login window
Xservers
In /etc/X11/xdm/Xservers, we need to comment out everything… in our setup, we don't run an X server locally (on gnu), the clients run their own X servers (ie on the flakes), so this file is empty.
Xsetup
In /etc/X11/xdm/Xsetup, establishing some polish (background and power saving):
xset +dpms dpms 600 0 0 #xsetroot -solid rgb:8/8/8 xsetroot -solid black
Xresources
The file /etc/X11/xdm/Xresources is where the bulk of the xdm appearance customization takes place.
Here it is (obviously subject to change as new tweaks make their way into it):
xlogin*login.translations: #override \ Ctrl<Key>R: abort-display()\n\ <Key>F1: set-session-argument(failsafe) finish-field()\n\ <Key>Delete: delete-character()\n\ <Key>Left: move-backward-character()\n\ <Key>Right: move-forward-character()\n\ <Key>Home: move-to-begining()\n\ <Key>End: move-to-end()\n\ Ctrl<Key>KP_Enter: set-session-argument(failsafe) finish-field()\n\ <Key>KP_Enter: set-session-argument() finish-field()\n\ Ctrl<Key>Return: set-session-argument(failsafe) finish-field()\n\ <Key>Return: set-session-argument() finish-field() xlogin*greeting: Classroom Linux Terminal (CLIENTHOST) xlogin*namePrompt: Lab46 Login:\040 xlogin*fail: Login incorrect (Please use your Lab46 login) #if WIDTH >= 1024 xlogin*greetFont: -adobe-helvetica-bold-o-normal--25-180-100-100-p-138-iso8859-1 xlogin*font: -adobe-helvetica-medium-r-normal--20-140-100-100-p-100-iso8859-1 xlogin*promptFont: -adobe-helvetica-bold-r-normal--20-140-100-100-p-105-iso8859-1 login*failFont: -adobe-helvetica-bold-r-normal--20-140-100-100-p-105-iso8859-1 #if PLANES >= 8 xlogin*logoFileName: /usr/share/X11/xdm/pixmaps/lair.xpm #else xlogin*logoFileName: /usr/share/X11/xdm/pixmaps/debianbw.xpm #endif #else xlogin*greetFont: -adobe-helvetica-bold-o-normal--14-140-75-75-p-82-iso8859-1 xlogin*font: -adobe-helvetica-medium-r-normal--12-120-75-75-p-67-iso8859-1 xlogin*promptFont: -adobe-helvetica-bold-r-normal--12-120-75-75-p-70-iso8859-1 xlogin*failFont: -adobe-helvetica-bold-r-normal--12-120-75-75-p-70-iso8859-1 #endif #ifdef COLOR xlogin*borderWidth: 1 xlogin*frameWidth: 5 xlogin*innerFramesWidth: 2 xlogin*shdColor: grey30 xlogin*hiColor: grey90 xlogin*background: grey !xlogin*foreground: darkgreen xlogin*greetColor: Blue3 xlogin*failColor: red *Foreground: black *Background: #fffff0 #else xlogin*borderWidth: 3 xlogin*frameWidth: 0 xlogin*innerFramesWidth: 1 xlogin*shdColor: black xlogin*hiColor: black #endif xlogin*useShape: true xlogin*logoPadding: 10 XConsole.text.geometry: 480x130 XConsole.verbose: true XConsole*iconic: true XConsole*font: fixed Chooser*geometry: 700x500+300+200 Chooser*allowShellResize: false Chooser*viewport.forceBars: true Chooser*label.font: *-new century schoolbook-bold-i-normal-*-240-* Chooser*label.label: XDMCP Host Menu from CLIENTHOST Chooser*list.font: -*-*-medium-r-normal-*-*-230-*-*-c-*-iso8859-1 Chooser*Command.font: *-new century schoolbook-bold-r-normal-*-180-*
Note the existence of the lair.xpm file in /usr/share/X11/xdm/pixmaps, this needs to be put there (as I originally put it there on wildebeast).
Printing
gnu:~$ wget http://pdq.sourceforge.net/ftp/pdq-2.2.1.tgz ... gnu:~$ tar -zxf pdq-2.2.1.tgz gnu:~$ cd pdq-2.2.1 gnu:~/pdq-2.2.1$ ./configure ... checking for glib-config... /usr/bin/glib-config checking for GLIB - version >= 1.2.0... yes checking for gtk-config... /usr/bin/gtk-config checking for GTK - version >= 1.2.0... yes updating cache ./config.cache creating ./config.status creating Makefile creating src/Makefile creating lpd/Makefile creating doc/Makefile creating doc/pdq.1 creating doc/printrc.5 creating doc/xpdq.1 creating etc/Makefile creating etc/printrc.example Setting pdq resource directory to /etc/pdq Setting global pdq configuration file to /etc/pdq/printrc Now do % make # make install # cp /etc/pdq/printrc.example /etc/pdq/printrc gnu:~/pdq-2.2.1$ make ... gnu:~/pdq-2.2.1$ sudo make install ... gnu:~/pdq-2.2.1$