I remember when my friend tried to install Linux on his 486, it wouldn't install in 4Megs but it would run in 4Megs. He had to borrow some of my memory from my Ramlink (C64/128 ram drive), I had 16 megs in it. My question is who thought it was a good idea to have the install specs higher than the running specs?
Was he installing using the GUI installer? Sure, it'll run XWindows with 4megs (it swaps a helluva lot), but when installing there's no virtual memory. Normally you'd run the text mode installer in such a limited environment. I'm fairly certain it installs with 4 megs.
Living on Earth may be expensive, but it includes an annual free trip around the Sun.