How to install ubuntu 10.04(Lucid Lynx) with your usb media?
I bought a new laptop to replace my old one that is so slow when executing programms. But the new one does not have cdrom and pre-existed operation system. I couldn’t borrow external cdrom driver. So I decided to install my linux system using usb media. I failed on the first day when I bought the new laptop. And the follow day was my duty. So till late today, I successfully installed the operation system for my laptop. The steps were:

1. Prepare two usb keys for more than 1G space.
2. Use usboot software to creat a bootable usb key to DOS system.
3. Downlad grub4dos to your usb key.
4. Download .iso file of ubuntu or archlinux into your another usb key. I don’t know why when I put the initrd.gz and vmlinuz with .iso file together on the same usb key the install process can’t continue!! And you should choose ‘unmount’ option to unmount the usb key that contains vmlinuz and initrd file when install.
4. Downlaod hd-media installer vmlinuz and initrd.gz to your usb key.
5. Set your computer’s first BIOS boot order is usb.
6. Restart your computer and enjoy installing now.