Date: Thu, 13 Jan 2000 12:27:38 +0100 (CET) From: Claude Buisson <ubc@paris.framatome.fr> To: Niall Brady <bradyn@maths.tcd.ie> Cc: freebsd-questions@freebsd.org Subject: Re: Booting a hard disk kernel from a floppy bootloader... Message-ID: <Pine.BSF.4.10.10001131223560.69095-100000@eve.framatome.fr> In-Reply-To: <Pine.BSF.4.10.10001121915500.59908-100000@walton.maths.tcd.ie>
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On Wed, 12 Jan 2000, Niall Brady wrote:
> Hi All,
>
> I've being having some problems preparing a boot floppy which will allow
> me to boot the hard disk kernel, by booting off the floppy.
>
> (using FreeBSD 3.2-Release on a Gateway P150 16MB ram, 2.5GB IDE disk, 2
> CDs, 1 floppy, vt320 off cuaa0, PNP modem;
> everything else is working perfectly, ppp, apm, printers, sound etc.)
>
> At the moment, I've tried the following configuration (list of relevant
> files and their contents from floppy/boot [contents are mirrored on hard
> disk in /boot ]
> {note: executables are the same as on the standard install floppy}
>
>
> /boot.config
> ------------
> -P
>
>
> /boot/loader.rc
> ---------------
> set currdev=disk1s2a
> load /kernel
> load -t userconfig_script /boot/kernel.config
> autoboot 5
>
>
> /boot/kernel.config
> -------------------
> pnp 1 0 os enable irq0 3 drq0 0 port0 0x2f8
> pnp 2 0 os enable port0 0x220 irq0 5 drq0 1 drq1 5
> pnp 2 1 os enable port0 0x200
>
>
> At the moment what happens is... (sorry, don't know how to capture exact
> text from boot process...)
>
>
>
> boot: -P
> keyboard found
>
> |
> FreeBSD blahdeblah
> Loader blahblah jkh@cathair
>
> Cannot find /kernel; press [ENTER] to boot immediately,
> or any other key for prompt.
>
>
>
> So normally, if the floppy is left alone, it will find /kernel on the hard
> drive eventually, but won't load the kernel.config script, which means
> that the modem and sound card won't be configured.
>
>
> However, at this point, if I go to the loader prompt, it shows up as...
>
> disk1s2a>
>
> (as I put into loader.rc in the "set currdev=" command)
>
> Then, at this point, if I execute the following commands...
>
> load /kernel
> load -t userconfig_script /boot/kernel.config
> boot
>
> All goes grand... everything loads as planned; only thing is I need to be
> at the console to do this.
>
> I can't fully understand the order in which things are happening... it
> seems as if loader is on disk1s2a, but for whatever reason kind find
> /kernel, and bombs out of loader.rc
>
> Perhaps I'm missing something in boot.config?
>
> Any advice or help at all would be very much appreciated!
>
I boot from a floppy to my second SCSI disk, with:
1:da(1,a)/boot/loader
in boot.config (on the floppy)
At home I use the same schme to boot from the third IDE disk
That is the floppy is just used to load /boot/loader from the hard disk.
> --
> Niall
>
>
>
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>
Claude Buisson
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