4gb RAM unacceptable to Ubuntu

Thursday, May 20th, 2010

I have run into this situation too many times now… Ubuntu wont accept all of the 4gb RAM that my laptop has.

free -m shows that its using only 3. This week I checked out a bunch of Linux distributions (like SimplyMEPIS, Fedora, Pardus and of course the new Ubuntu Lucid Lynx). Pardus was awesome but I went right back to Ubuntu anyways. So I had to reinit all of the 4gb RAM each time I went Ubuntu.

Here is what I did based on this link, I am putting it here so that I can quickly refer to it when I try out some distros again before coming back to Ubuntu. Ideally I d like to use Windows through VirtualBox on Ubuntu and have it run on its own desktop space.

So for using all of the RAM we need to install the PAE enabled kernel

sudo apt-get update
sudo apt-get install linux-headers-server linux-image-server linux-server

And then reboot.

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Lemon Green

Saturday, March 13th, 2010

I love the color lemon green and it looks stunning with white. So I extended this love to my Ubuntu theme and here are the results. I used:

  • the Clearlooks-LemonGraphite theme for the ‘controls’
  • Alphacube 0.9b Metacity color for the ‘window border’
  • Humanities-Leaf for the ‘icons’
  • DMZ black for the ‘pointer’
  • Lucida Grande for the system font at size 8 and Lucida MAC bold for window title again at size 8

Click on the images to see a full preview

Desktop

Desktop

Expanded Menu

GEdit

GEdit

Utilities

Utilities

All of the elements used in this can be found here with little amount of effort.

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Gmail Evolution IMAP config

Wednesday, May 27th, 2009

to configure Evolution for your gmail account (IMAP)

http://weakish.int.eu.org/tutorial/configure-evolution-for-gmail.xhtml

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Missing wireless network icon in Ubuntu 8.10 solution

Monday, December 1st, 2008

If you are using Ubuntu 8.10 and had configured the wireless network much later than the wired one then you may have lost the icon in the taskbar notification area. To get it back you can open up the interfaces file like this

sudo gedit /etc/network/interfaces

And then, comment out all the lines except for the first two lines which are

auto lo
iface lo inet loopback

Then reboot and there you have the network icon again in the notification area!

My interfaces file looks like this

auto lo
iface lo inet loopback

#iface eth0 inet static
#address 192.168.0.8
#netmask 255.255.255.0
#gateway 192.168.0.1

#auto eth0

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Setting the IP Address from the Terminal in Ubuntu 8.10

Sunday, November 30th, 2008

To make changes to your static IP Address on Ubuntu, you can open the terminal and open the ‘interfaces’ and ‘resolv.conf’ file in the editor you want

IP Address:
sudo gedit /etc/network/interfaces

then, for the DNS
sudo gedit /etc/resolv.conf

and finally, restart networking
sudo /etc/init.d/networking restart

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Java Installation on Ubuntu 8.04

Sunday, June 8th, 2008

I had some minor hiccups while installing java on Ubuntu 8.04, here are the notes I stored as I went along-

On the Ubuntu Forums it was suggested that OpenJDK shud be used rather than Sun JDK.

After installing Eclipse it couldnt find the correct path to the Jvm or jre…

Used gksudo nautilus in app launcher(Alt + F2) and opened /etc/eclipse/javahome so that it could be opened as root and edited.
Added this line
/usr/lib/jvm/java-6-openjdk

The next problem was while launching Eclipse, “An error occurred, check some log….” This is a common error and it was due to a corrupted directory used for the workspace. This directory was created by me in my earlier attempts to launch Eclipse.

Created a new dir and Eclipse ran!

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