Doco: Any device in the output device menu that has a Pci section in its path, but does not have a Uart section will be a VGA device. If you require a VGA console, choose this device, and unmark all others. Any device in the output device menu that has a Uart section,**but no Pci** section is one of the system serial ports. Devices containing **both** a Uart and Pci section are MP serial ports. http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01883126/c01883126.pdf http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01884039/c01884039.pdf and see Selecting Your HP-UX Console in the HP-UX Installation and Update Guide pdf was helpful, but it was too terse for me to logically figure it out. The bottom line is that I shouldn't have had the UARTs (serial ports) enabled for it to act like it does on the PARisc servers and HPUX. What I discovered is that by having BOTH the LAN console *and* the UARTs enabled in the EFI interface, the serial port was overriding the LAN console. I was assuming that it would use all 3, since they were all enabled. This is actually true -- up until the OS boots. At that point, the OS will determine the console port. The above document says that, but it didn't ring clear until actually playing with it. Enabling/disabling the serial ports is only relevant to the OS. Up until the OS is loaded and boot begins, output is mirrored to all the ports. Some interesting points: For Linux, I have a getty on both ttyS0 and ttyS2. 1) With the MP UART enabled, under Linux, it becomes ttyS0 and the LAN console becomes ttyS2. All the Linux boot output goes to ttyS0 and thus to the MP serial port and *not* the LAN console. But, once the gettys come up after the boot, I get a login prompt on both the LAN port (ttyS2) and the serial port (ttyS0). A curious point about the above is that specifying "console=ttyS2" in the Linux boot string does not change the above behavior - the output still goes to ttyS0. I can't explain that. 2) When I disabled the MP UART, then the LAN console becomes ttyS0. It shows output throughout the EFI *and* the Linux boot, which is what I was used to on the PARisc MPs and HPUX. Of course, nothing happens on the disabled serial port. I'm still researching HPUX. On Daytona1: With all 3 on, output goes to serial port on MP * Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) But, it should have gone to all of them, anyway during EFI stuff, but it did not!! When I enable just the second one: Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) Powered off/on, then RS. Output did not go to the MP serial !!! Turn on just first entry: * Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) This made MP serial active -- did not have to power on/off !! But, just for EFI stuff. Now the post EFI is coming to the LAN CONSOLE !!!!!!!! and NOT to serial MP !!! Now, turn off 1st & 2nd entry, again. do RS, again. Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) During this EFI cycle up, MP serial is active!! (as well as the LAN console). Turn off ALL entrys !!! Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) EFI output to LAN worked, but *not* to MP serial!! Discovered that he turned them *all* on!! * Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) Post EFI stuff did not display to serial MP but it *did* to LAN !! Somehow we woke up the LAN console -- it's working like I want. Turn on *just* first entry - we should get stuff to MP serial. * Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) EFI works, BUT LAN is still console !!! which is good, but I don't understand what's happening I don't know what I did to make it work, not how to get it back to the serial MP !!!! Reboot. NOW console is serial MP !!!!!! Whaaaaaat !!! Let's get it back to the LAN console. Turn off 1st & 2nd entry: Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) output going to both LAN and serialMP during this. Cold reset. Now, output only going to LAN during EFI and kernel load process. Kernel boot not going to *either* LAN or serialMP -- just VGA. reboot via RS try to get back to LAN console Turn on just first entry: * Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) * Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) Cold reset. EFI going to both LAN and serialMP. Now the post EFI is coming to the serial MP and NOT to LAN CONSOLE !!!!!!!! Turn off ALL entrys !!! Acpi(PNP0501,0)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,700)/Pci(1|1)/Uart(9600 N81)/VenMsg(Vt100+) Acpi(HWP0002,0)/Pci(1|0)/Usb(0, 0) Cold reset. Now EFI only going to LAN, but he had turned all back on. LAN is console -- that's what I want. Still don't know what's making it work. Perhaps, disabling them all does it. Play on D2.