you can install os39 with no cd (iso or file).
But the updates wont work with no os39 cd and it
also detects `virtual CD` and aborts instalation of updates(boingbags).
the only way is attach the HDD to yor PC
install, updated and copy/extract all your stuff through
WinUAE.
Let your PC do the hard work and save your A1200 for Fun stuff.
