PDP 11 and PDP 8 boards

Several boards from gold scrapper.  Most are in perfect condition as far as component condition, state of etch, etc.  One had a clipped lead on it under a wire which was from another board, not a pulled jumper.

I ordered several more, and am resisting the urge to buy a couple more to add to stock.  Seldom to see sanity in listings from seller, as far as pricing.

M8043

M8028 Async with Modem

M8192 KDJ11-A

KDJ11-A (Bitsavers) PDP 11/73
 

 

M8186 PDP 11/23 KDF-11A

Includes E57, MMU chip.

KDF-11-AA (Bitsavers)

A-614 PDP 8 DAC

desktop graphic control in linux ubuntu unity

Control workspaces for desktop, and hiding of the workspace control (switch to a single space)

http://askubuntu.com/questions/38789/how-do-i-add-and-remove-the-workspace-switcher-launcher-from-the-unity-launcher/

gsettings set org.compiz.core:/org/compiz/profiles/unity/plugins/core/ hsize 1
gsettings set org.compiz.core:/org/compiz/profiles/unity/plugins/core/ vsize 1

http://askubuntu.com/questions/260510/how-do-i-turn-on-workspaces-why-do-i-only-have-one-workspace

Using the Dash or a terminal, open the dconf-editor application. Navigate to

org.compiz.profiles.unity.plugins.core

Adding Nautilus to your desktop (more than just nautilus-open-terminal)

http://www.n00bsonubuntu.net/content/add-open-terminal-here-to-file-menu-ubuntu-14-04/

sudo apt-get install nautilus-actions -y
nautilus-actions-config-tool

To add the menu item click on the Define a new action button and select the Actions tab. Enable the Display item in location menu option and in the Context label field copy+paste the following line:

Open Terminal Here

Enable Display item in the toolbar.
Copy+paste the following line into the Tooltip field

Open Terminal Here

Set icon (optional): Icon -> Themed icons tab -> Click Applications -> Select terminal icon -> click Apply -> click OK


Click on the Command tab and copy+paste the following line into the Path field:

gnome-terminal
copy+paste the following line into the Paramters field:

Parameters: --working-directory=%d/%w
When done save the action and close the config tool and reload Nautilus using the following command:

nautilus -q

git development notes

these are assuming using git at unix command line:

follow instructions to create an ssh id_pub and update bitbucket for that.  separate from project.

clone working instance in a directory.

git clone https://username@bitbucket.org/repository/project.git

To commit files, git checkout

git status
git add -A
git commit -am "my edits"
git push -u origin master

**

vmesxi support on nagios or vmware esxi

monitoring python script can be had here:

https://www.thomas-krenn.com/en/wiki/VMware_ESXi_Hardware_with_Nagios_or_Icinga_Monitoring

instructions for installing it in the nagios system can be had here:

http://www.claudiokuenzler.com/nagios-plugins/check_esxi_hardware.php#CommandDefinition

Note: had a problem with minimal system install with setuptools for python environment not being installed.  This occurred on a system built up from a very minimal debian environment (ubuntu 14.10) and may happen other times.

http://stackoverflow.com/questions/7446187/no-module-named-pkg-resources

to install setuptools

sudo su
wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | python

Service definition for icinga command.cfg:

# Check HP Server hardware
define service{
        use generic-service
        host_name vmesxi3
        service_description Hardware
        check_command check_esxi_hardware!root!<password>
}

enable workspaces / desktop in ubuntu 13 and above

ubuntu desktops

http://askubuntu.com/questions/260510/how-do-i-turn-on-workspaces-why-do-i-only-have-one-workspace

monitoring Cubesats with SDR dongle.

This is an interesting use for SDR, which I've wanted to look into for a while

https://plus.google.com/+hackaday/posts/KWSRTq323YB

http://hackaday.com/2015/06/29/easy-way-to-listen-to-cube-sats/

http://soldersmoke.blogspot.com/2015/06/back-with-sats-catching-cubes-with.html

https://www.arrl.org/files/file/Technology/tis/info/pdf/ab18-16.pdf

http://www.heavens-above.com/AmateurSats.aspx

https://youtu.be/fKDlVyhDnEs

http://www.funcubedongle.com/

dos environment on arm processors

I have enough arm systems around to start playing with x86 system emulation to run a few systems hosted on arm boxes.

Thinks aren't going well, so there will be some notes here.

Hard disk doesn't work for some reason with qemu

Running Dos 622 on qemu

https://h3g3m0n.wordpress.com/2007/03/17/qemu-for-dos-abandonware-under-linux/

running windows 9.x on qemu

http://www.vogons.org/viewtopic.php?t=17324

running arch linux on qemu

https://wiki.archlinux.org/index.php/QEMU

Changing floppy disks on qemu

http://lists.gnu.org/archive/html/qemu-devel/2005-08/msg00119.html

Ctrl-Alt-2 (to start the monitor screen)

  eject fda
  change fda /path/to/new/floppy_image

  Ctrl-Alt-1

xx