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Eric Crossley's Blog

Created this Blog to track Ubuntu references that I've found useful for my T-61.

7 Posts tagged with the ubuntu tag
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Great read over here: http://blog.thesilentnumber.me/2009/09/top-things-to-do-after-installing.html

Check out some of the key things you must do once you upgrade your system to 9.10 (or rebuild it from scratch).

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Workstation 7 is FANTASTIC on Ubuntu 64. I'm so excited about this new workstation release as it provides many additional features over WS 6.5.

1) Sockets / Core selection - You can now set number of sockets and cores per socket to your individual workstation vm's.
2) Compacting of VM disk files can be done from workstation.
3) Encryption of Workstation VM's can now be done preventing access into VM's without proper credentials.
4) Windows 7 support

These are just a few of the options that are available, as well as, the ability to run nested ESX environments inside of Workstation 7.

If you are installing workstation for the first time on Ubuntu 64, you MUST execute the vmnetset script (http://communities.vmware.com/blogs/ecrossley/2009/06/29/ubuntu-and-vmware-workstation-networking) from this blog in order to allow promiscuous mode for your ethernet adapters

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Great article over at Cosmic Egg about open source view client on 64 bit linux. I've been slacking on the blog, so enjoy the read.

http://blog.cosmicegg.net/2009/10/vmware-view-open-client-on-64-bit.html

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Just go to your VPN web address and enter in your credentials. If it promts you through an xterminal session to hit enter and allow it to clear through to the option listing for services. Stay in the browser window and you can hit those internal things from inside your browser sslvpn wrapper.

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So, if you are wanting to install new video drivers, etc. inside of Ubuntu (like making your own amd64 kernel packages) then you have run into a situation where you need to install new video drivers and a simple switch out to a console login won't work.

Here are the simple steps to shutdown the graphical interface from inside a console session (notice I didn't say terminal) / text login:

Stop GNOME: sudo /etc/init.d/gdm stop
Start GNOME: sudo /etc/init.d/gdm start
Stop KDE: sudo /etc/init.d/kdm stop
Start KDE: sudo /etc/init.d/kdm start

How do I set Ubuntu to boot to console every time I restart my box?


Definitions of runlevels:

runlevel 1 = single user text mode.
runlevel 2 = GUI mode

How to set Ubuntu to boot to console every time:

  1. Open terminal
  2. type sudo init 1
  3. System will shut down and boot you into single user text mode.

How to set Ubuntu to boot to GUI every time:

  1. Open terminal
  2. type sudo init2
  3. System will shut down and boot you into GUI mode.

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While working with Ubuntu 9.04 i've found that it's quite a pain to update your software sources listing with new software sources that you trust. this is because each trusted software source from Launchpad has a PGP security key that needs to be imported so that you can validate that you are pulling source code from the website.

I've found a nifty script that was written by someone on the internet and a few instructions which allow for easier management of this process. Essentially, you add a software source to your software sources list via System - Administrations - Software Sources - (enter root password) - Third party software tab. Once you enter in the software source, the script and associated updates will automagically collect the proper PGP keys necessary to allow you access into the repositories on launchpad, when you run apt-get update.

Enjoy!


PS - I didn't write the script, nor the code inside of the readme but I have validated that it works with no security risk. The text of the readme is my own.



Readme contents:


How to automatically add new PPA repo security keys when doing a normal apt-get update:

1. Save the script which adds the keys for all your PPA repos from this email.

2. Extract and put it in /usr/local/bin

3. Chmod the script to 775. Do this by changing to /usr/local/bin and then typing chmod 775 launchpad-update into the terminal.

4. Create a new file, "etc/apt/apt.conf.d/05ppa" (file 05ppa which should be located in etc/apt/apt.conf.d) and put this in it:

APT::Update::Pre-Invoke { "if -x /usr/local/bin/launchpad-update ; then /usr/local/bin/launchpad-update; fi"; };

5. That's it. This will execute the script in local/bin and automatically import any security keys from the PGP keyserver to support repositories that you have added to your 9.04 system. Its an easy way to work through the adding a repository in system sources thing.

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I'm running Ubuntu 64 bit on my T-61 laptop as the host OS (so that I could actually use the full 4GB of ram issued to me when I received my laptop). I run workstation 6.5 and host all of my VM's I use to accomplish my job functions. One of the initial challenges that I ran into while running Workstation on Ubuntu started when I was creating a laptop lab to host ESX 3.5 and ESXi servers inside Workstation on my laptop. During boot time, ESX and ESXi attempt to put your network connections into promiscuous mode, which under Ubuntu isn't possible without the proper read / write permissions on the /dev/vmnet* items.

As such, I created a simple script that, once included in /etc/init.d will allow this action to occur during system startup. I'm attaching both the simple script and the instructions on how to execute and add this component to your startup sequence for Ubuntu. I've also attached a tar.gz file which includes both the script and the instructions.

Enjoy.



Read me file information:


How to set VMnets at startup:

1) Extract the vmnetset.tar.gz file to your desktop or any other location.


2) Copy the vmnetset.sh script to your /etc/init.d directory by executing the following:
a) cp /directory/where/the/script/is/vmnetset.sh /etc/init.d/

3) Execute the following commands to set the script to boot and to assign the proper symlinks for bootup
a) sudo update-rc.d vmnetset.sh defaults
b) sudo chmod +x vmnetset.sh

4) Once completed, reboot system and validate your network settings by:
a) open a terminal window and type ls -l /dev |grep vmnet

If all vmnet settings are set rw, you are good to go!

To remove the script from startup: sudo update-rc.d -f vmnetset.sh remove

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Click to view ecrossley's profile Member since: Mar 3, 2009

Created this Blog to track Ubuntu references that I've found useful for my T-61.

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