It runs, but freezes when i tried to install seamonkey-1.1 via quickpet.lupumini-5.2.8.6 -- Lucid Pup with Z-drive and 121MB main SFS file, appropriate for 256MB+ RAM and minimal 160MB download size
The lupumini on the 256MB RAM loads both the 121MB main SFS plus the 35MB Z-drive on the RAM at a time.
That is the same as the lupu with the 155MB main SFS, and they freezes when installing browser pets.
Anyway, I do not think the lupu is appropriate for 256MB RAM without swap.
One of the reason is the lupu does not have full featured browser, and it is a concept of the lupu.