After re-booting the computer from the USB stick with Ubuntu, I then installed the Ubuntu 12.4 operating system alongside Windows 7, on an existing partition on the PC, overwriting an older version of Ubuntu.
I did something similar with Ubuntu 9.10 Netbook Remix on an ASUS eee PC 900 a few years back. Only in that case I was replacing a Linux Xandros installation with Ubuntu, and there was no Windows OS and no partitions.
Let me share the steps I took to install Ubuntu 12.4 now, in case it helps anyone looking to do the same:
- Download the desired installation from the Ubuntu website (in my case, a file called “ubuntu-12.4-desktop-i386.iso” representing the desktop version), onto your Windows PC.
- Insert a USB stick with at least 2GB of memory.
- Backup any files from the USB stick that you may want to save, as the stick will be reformatted in the process.
- Download the Universal USB Installer from PendriveLinux.com.
- Install and run the Universal USB Installer (screenshots):
- Select your Ubuntu distribution from the drop-down list.
- Select your USB flash drive (USB stick).
- Select a Persistence Option for your USB (Optional) – (I actually didn’t select this because I didn’t know what to choose)
- At some point you could check a box to reformat the USB stick (recommended).
- Click “Install”.
- After completion, restart your Windows PC.
- (On the Acer and presumably on many other computers:) Press ‘F12′ on startup to display the boot drive options. On some computers it’s the ‘Esc’ key.
- Choose the USB flash drive to boot your PC.
- Select to ‘Install Ubuntu 12.04 LTS’ either during startup from a dialog box, or afterwards from the Ubuntu desktop.
- In case your computer already has mounted partitions (e.g. one for Windows and another for Ubuntu as in my case), unmount the partitions when asked during the installation process.
- Select the desired partition when asked. Be careful not to overwrite the partition containing your Windows OS and Windows file system.
That’s about it!