Date: Thu, 1 Feb 2007 10:07:17 -0600 From: Bruce Burden <brucegb@realtime.net> To: freebsd-stable@freebsd.org Subject: Re: usb hard disk Message-ID: <20070201160717.GA51058@tigerfish2.my.domain> In-Reply-To: <20070201151041.GD861@faust.net> References: <20070201120055.2A9DE16A41A@hub.freebsd.org> <20070201151041.GD861@faust.net>
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On Thu, Feb 01, 2007 at 04:10:41PM +0100, Zoran Kolic wrote:
>
> Yup. I want my mbr on internal hdd and another grub on external
> usb drive to boot linux. Simply, to let bios to choose from two
> equal disks. Possible?
>
Mostly. :-) I have the original disk from my laptop in
and USB/Firewire enclosure. The original disk has windoze
and Gentoo, with GRUB on the MBR.
A new, replacement disk drive is now installed, and is
FreeBSD only. It has the standard FBSD boot loader.
When I power on the laptop, I get the ususal F1/F2/F3
and F5 prompts (three partitions on the internal disk plus
the USB/Firewire disk).
Selecting F5 will put me into the GRUB menu, which
will boot Gentoo. Mostly. I do not believe I have a SCSI
driver in the Gentoo kernel, so the boot process crashes
when Gentoo attempts to mount the boot device.
It is my belief that were I to swap the drives, rebuild
the kernel, with a SCSI module included, swap the drives
back, I should be able to boot Linux from the external drive.
It is not clear if I can boot windoze, as it should have
a SCSI driver available to it (although who is to say, given
the "customized" laptop installations these days), but it
does not boot, despite my telling GRUB to map ad0 to sd0
and map sd0 to ad0, which *should* put the windoze drive on
the first disk, at least as far as windoze knows. This is
repeated in several sites I have searched, but none of them
are using the FBSD bootloader initially, so that may be
confusing things. I suppose I could install the GRUB boot
loader in the ports, but I am going to "correct" the windoze
issue with qemu.
Bruce
--
------------------------------------------------------------------------
"I like bad!" Bruce Burden Austin, TX.
- Thuganlitha
The Power and the Prophet
Robert Don Hughes
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