Andreas Gruenbacher <[EMAIL PROTECTED]> writes: > Hi, > > I have a little problem getting my PowerMac 4400/200 to boot again. > > As I was used to on Intel machines, I just repartitioned the harddisk with > pdisk > and removed all MacOS partitions. Now the darn thing doesn't boot anymore. I > don't get into Open Firmware, either. > > >From several bits of documentation I conclude that Open Firmware uses the > >serial > port per default on this machine. At least, if I press the magical Open > Firmware > keys at boot time, the monitor doesn't get any signals (as opposed to when I > press nothing).
Use cmd-option-p-r to zap the pram and boot back to the macos. You should then be able to boot off a macos cd. Linuxppc has some good documentation on this stuff: http://www.linuxppc.com/userguide/booting.html > I would like to build a NULLMODEM CABLE so that I can configure my Mac from a > PC. I don't have a second Mac. Does anybody know the pinout and which pins to > connect for that purpose? I couldn't find any suitable online documentation on > the Web. You can buy a converter from a good electronics store. IIRC, the mac end uses RS-422 (the part I bought just said mac-to-pc serial converter). Connect this to an ordinary null modem cable, and you're in business. You'll probably want to use the boot-vars program to set output to the screen, but this doesn't work on all machines, and you might have to go the serial cable route. Good luck, cbb
