[[!meta title="NetBSD/hppa: Frequently Asked Questions"]]
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# Using a serial console<a name="serial_console"></a>
On most models, you can configure the Boot ROM to use a serial console
instead of a locally attached keyboard and the framebuffer. The serial
console will typically run at 9600 bps, 8 N 1 on Port "A" or "1". The
procedure varies between models, but you *will* need a keyboard and
monitor connected initially to configure the Boot ROM. The procedure is
There are some tricks you can play to force a serial console without
initially connecting a keyboard and monitor. For models with removable
framebuffers (such as the 720, 730, 735, and 755), simply remove the SGC
framebuffer and the system will default to serial console. Apparently,
[powering up with the keyboard
and [holding down the TOC (Transfer of Control) button on the side of
the machine for 10 seconds while powering
will force a serial console. The last two tricks do not appear to work
on older models (such as the 715 and 735). See the [[special
instructions|serialconsole-712]] for model 712 workstations.
by Thomas Marteau, The Puffin Group and Deb Richardson.
<li>Turn the PA-RISC machine on. Have both the keyboard and mouse connected.</li>
<li>During the boot process, the following message will appear:
Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.
When this message appears, press and hold the Esc key until an
options menu appears.</li>
<li>By default, you enter the `BOOT_ADMIN` console. In some 715s,
the options menu looks like this:
b) Boot from specified device
s) Search for bootable devices
a) Enter Boot Administration mode
x) Exit and continue boot sequence
?) Help<br />
Select from menu:
Select `a) Enter Boot Administration mode`. This will bring
up a `BOOT_ADMIN>` prompt. Everything else you do will be in
`BOOT_ADMIN` mode. So now, everybody is in the
<li>To change to serial console mode, type the following command at the
`BOOT_ADMIN` command prompt:
path console rs232_a.9600.8.none
<li>Power down, power up. Be ready to hit ESC on your terminal to break
into the same options menu as in step 3.</li>
# How do I configure power-on settings (boot device, console, etc.)
All 700 series workstations have a Boot Administration command line
utility in their Boot ROM which lets you configure various settings. For
example, you can set whether the system automatically boots an OS, which
device to try booting from first, determine the ethernet MAC address,
set up a serial console, and possibly do some low level hardware access.
To get to the `BOOT_ADMIN` prompt, you must press the
`ESCAPE` key before it tries to boot an OS. Since these machines
often take a long time between powering on and the brief window of time
where you can hit the `ESCAPE` key, you must pay attention. It
may take over a minute after pressing the power button before anything
will show up on screen.
Once you have escaped out of the `Selecting a system to boot` and
`Searching for Potential Boot Devices` you need to type the
"`a`" key to get to the `BOOT_ADMIN` prompt. Now, use the
online help with the `HELP` command.
Have fun (and see this brief [[transcript|boot_admin]] of some of the `BOOT_ADMIN` menus options on a 735/99).
# What devices does my system try to boot from (and how do I change it)
Use the `AUTOSELECT` and `PATH` commands in the
# HP-UX Compatibility
NetBSD/hppa will one day feature extensive binary compatibility with
HP-UX programs, however this work has not been done yet.
# History of NetBSD/hppa
The hp700 port of NetBSD was started by Matt Fredette in October 2001. He started working with Michael Shalayeff's [OpenBSD/hppa](http://www.openbsd.org/hppa.html) sources at that time, and after much work had it booting multiuser in March of 2002. At that time he began merging the port into the NetBSD tree.
The port was renamed NetBSD/hppa for the 7.0 release.
# Other sources of information
* [PA-RISC Linux Development Project](http://parisc-linux.org/index.html)
* [The Cypher HP PA-RISC Project page](http://www.openpa.net/) (good info on hppa machines)
* [Utah PA-RISC Mach/Lites/4.4](http://www.cs.utah.edu/flux/mach4-parisc/html/pamach.html) (obsolete)
* [MkLinux for HP PA-RISC](ftp://ftp.cirr.com/pub/hppa/mklinux/mkpa.html) (obsolete)
* [HPBSD: Utah's 4.3bsd port for HP9000 series machines](http://www.flux.utah.edu/~mike/hpbsd/hpbsd.html) (obsolete)
* [HP Workstation Documentation Archive](http://www.hp.com/workstations/support/archive/) (some manuals for Series 700 machines)
* [Netbooting NetBSD/hppa](http://www.NetBSD.org/docs/network/netboot/intro.hp700.html).
* [General NetBSD Documentation](http://www.NetBSD.org/docs/) - for questions not specific to NetBSD/hppa.
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