56 lines
2.2 KiB
Plaintext
56 lines
2.2 KiB
Plaintext
Troubleshooting Tips - or "These are the times that try men's souls"
|
|
--------------------------------------------------------------------
|
|
|
|
The following tips and tricks may help you turn a failing (or failed)
|
|
installation attempt into a success. Please read them carefully.
|
|
|
|
---
|
|
|
|
Summary: Hardware conflict or misconfiguration.
|
|
|
|
Problem: A device is conflicting with another or doesn't match
|
|
the kernel's compiled-in IRQ or address.
|
|
|
|
Cause: While most device drivers in FreeBSD are now smart
|
|
enough to match themselves to your hardware settings
|
|
dynamically, there are a few that still require fairly
|
|
rigid configuration parameters to be compiled in (and
|
|
matched by the hardware) before they'll work. We're
|
|
working hard to eliminate as many of these last
|
|
hold-outs as we can, but it's not always as easy as
|
|
it looks.
|
|
|
|
Solution: There are several possible solutions. The first,
|
|
and easiest, is to boot the kernel with the -c flag.
|
|
When you see the initial boot prompt (from floppy or
|
|
hard disk), type:
|
|
|
|
/kernel -c
|
|
|
|
This will boot just past the memory sizing code and
|
|
then drop into a dynamic kernel configuration utility.
|
|
Type `?' at the prompt to see a list of commands. You
|
|
can use this utility to reset the IRQ, memory address,
|
|
IO address or a number of other device configuration
|
|
parameters. You can also disable a device entirely
|
|
if it's causing problems for other devices you'd much
|
|
rather have work. Note that this only affects the
|
|
kernel being booted temporarily, it does not "write out"
|
|
the information to the kernel so that these settings
|
|
are permanantly altered (this would be actually rather
|
|
hard). If you reboot, you'll have to make the same
|
|
changes again. The goal of the -c utility is to get
|
|
you up far enough to be able to download the appropriate
|
|
sources and configure and rebuild a kernel more specific
|
|
to your needs.
|
|
|
|
Another solution is, obviously, to remove the offending
|
|
hardware or simply strip the system down to the bare
|
|
essentials until the problem (hopefully) goes away.
|
|
Once you're up, you can do the same thing mentioned
|
|
above - compile a kernel more suited to your hardware,
|
|
or incrementally try to figure out what it was about
|
|
your original hardware configuration that didn't work.
|
|
|
|
---
|