69 lines
2.5 KiB
Text
69 lines
2.5 KiB
Text
<!-- $Id: troubleshooting.sgml,v 1.3 1995-07-07 22:25:55 jfieber Exp $ -->
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<!-- The FreeBSD Documentation Project -->
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<chapt><heading>Troubleshooting<label id="troubleshooting"></heading>
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<p>The following tips and tricks may help you turn a
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failing (or failed) installation attempt into a success.
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Please read them carefully.
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<sect>
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<heading>Hardware conflict or misconfiguration</heading>
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<p><descrip>
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<tag>Problem:</tag> A device is conflicting with
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another or doesn't match the kernel's compiled-in IRQ or
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address.
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<tag>Cause:</tag> While most device drivers in
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FreeBSD are now smart enough to match themselves to your
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hardware settings dynamically, there are a few that still
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require fairly rigid configuration parameters to be
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compiled in (and matched by the hardware) before they'll
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work. We're working hard to eliminate as many of these
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last hold-outs as we can, but it's not always as easy as
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it looks.
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<tag>Solution:</tag> There are several possible
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solutions. The first, and easiest, is to boot the kernel
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with the <tt>-c</tt> flag. When you see the initial boot prompt
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(from floppy or hard disk), type:
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<tscreen><verb>
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/kernel -c
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</verb></tscreen>
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This will boot just past the memory sizing code and then
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drop into a dynamic kernel configuration utility. Type
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`<tt>?</tt>' at the prompt to see a list of commands.
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You can use this utility to reset the IRQ, memory
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address, IO address or a number of other device
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configuration parameters. You can also disable a device
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entirely if it's causing problems for other devices you'd
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much rather have work.
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Another solution is, obviously, to remove the offending
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hardware or simply strip the system down to the bare
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essentials until the problem (hopefully) goes away. Once
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you're up, you can do the same thing mentioned
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above---compile a kernel more suited to your hardware, or
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incrementally try to figure out what it was about your
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original hardware configuration that didn't work.
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</descrip>
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<sect>
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<heading>When I boot for the first time, it still looks for
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/386bsd!</heading>
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<p>Cause: You still have the old FreeBSD 1.x boot blocks on
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your boot partition.
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Solution: You should re-enter the installation process,
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invoke the (F)disk editor and chose the (W)rite option.
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This won't hurt an existing installation and will make
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sure that the new boot blocks get written to the drive.
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If you're installing for the first time, don't forget to
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(W)rite out your new boot blocks! :-)
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