My Ubuntu Jaunty 9.04 Bootchart

My machine: Lenovo T61 T9300 2Gb 100Gb nvidia quadro 140m
ext4 filesystem
record: 14 sec

Really amazing isn't it?

FYI, same machine with ubuntu 9.04 on ext3 filesystem has a boot time of 27 sec.

PS: install bootchart by:

sudo apt-get install bootchart


GMail Notifier for Ubuntu Jaunty 9.04 notification

The growl-like new notification style in Ubuntu Jaunty 9.04 is really fancy in my opinion. Today I just discovered this tiny application Gmail Notifier that can fully integrate with the new notification (checkgmail can't...yet).

However, compared to other notification application like checkgmail, there is limited functions in this gmail notifier. So it's your choice, better features (like monitoring a certain label) or fancy interface.

Check it out...
https://launchpad.net/gm-notify

Downloads
https://launchpad.net/gm-notify/+download

Install Ubuntu 9.04 (Jaunty Jackalope) Beta in your virtual machine

Well, Ubuntu 9.04 beta is out. But as a Linux newbie, I don't really want to install it directly in my computer -- it's still a beta version. So a good idea to experience while it's still hot is to install it in a virtual machine. Here's a step by step guide:

Install Virtualbox

A complete community document could be found at:
https://help.ubuntu.com/community/VirtualBox

OK, let's get started. Run the following command:

sudo apt-get install virtualbox-ose
sudo apt-get install virtualbox-ose-modules-`uname -r`
sudo adduser $USER vboxusers
sudo apt-get install util-linux


The document mentioned something about module problem for kernel version 2.6.24-22 or higher, which is no longer a concern.

Then logout and relogin.

Install Ubuntu 9.04 in Virtualbox

If you have a multi-core CPU, start virtualbox this way. In your terminal:

taskset -c 1 virtualbox


This will force virtual box to use only one core.

In the virtualbox, click "New", then name your virtual machine. In the OS type menu, select "Linux 2.6".

Then you need to assign memory to your virtual machine. I give it 512M out of my 2G memory. And I selected dynamic size virtual hard drive. This is pretty much it. Other things are quite straight forward.

Before you start your virtual machine, in "CD/DVD mount" section on the right, mount the Ubuntu 9.04 iso, which can be downloaded here.

Then press start, and enjoy!