The following tutorial covers the process of installing Ubuntu 8.10 to a USB flash drive, thumb drive or portable external hard drive using the now included and built in USB Installer “USB Startup Disk”. Installing with this method allows the use of the persistence feature (via a persistence loop file, FINALLY) to save and restore your changes on subsequent boots.
USB Ubuntu 8.10 installation essentials
• Working CD Drive and an Ubuntu 8.10 CD
• USB flash drive or external USB hard drive
Install Ubuntu to USB via the USB Startup Disk:
1. Download the Ubuntu 8.10 ISO and burn it to a CD
2. Restart your computer, booting from the Live CD
3. Insert a 1GB or larger USB flash drive
4. Navigate to System > Administration > Create a USB startup disk:
5. Next, (1) Select the USB disk to use, (2) Select the option Stored in reserved extra space and adjust the sider to set capacity to use, (3) Click the Make Startup Disk button:
6. A progress bar will indicate the progress of your USB Ubuntu installation:
7. Once the installation is complete, simply remove the CD, restart your computer and set your boot menu or BIOS to boot from the USB device
If all goes well, you should now be booting from Ubuntu 8.10 on your USB flash drive, automatically saving changes you make to the casper-rw loop file as you go.