This note relates to WUBI for Ubuntu 10.04.
On machines that feature a 64-bit processor and not much memory (less than 1GB), it might be beneficial to install a 32-bit version of Ubuntu as opposed to a 64-bit version. This reason is that the performance price in processing is probably less than the performance price in swapping due to restricted memory. 64-bit versions of kernels and applications tend to use more memory than their 32-bit counterparts.
WUBI detects the computer configuration and selects the most appropriate version of Ubuntu. On a machine equipped with a 64-bit processor, it generally elects to use a 64-bit version of Ubuntu.
To force WUBI to use a 32-bit version of Ubuntu, use the “–32bit” command line option. Instead of starting WUBI via its icon, open a command-line prompt and run:
Continue the remainder of the installation as usual.