Using SBM "Smart Boot Manager" http://btmgr.sourceforge.net/ I was able to boot my FreeBSD 5.2R out of the box which is located on the upper part of the disk (40G to 80G).

It uses MBR for installation, so you can boot from a DOS floppy. Backup your existing MBR and isntall this nice tool.

Dany


Hanspeter Roth wrote:


On Jan 16 at 12:30, Juan Rodriguez Hervella spoke:



Hello,

I've got a 40 GBytes hard disk on an old Pentium MMX 266 MHz.
The first time I plugged it into the motherboard my BIOS didn't recognize
the drive, but fortunately there is a jumper that reduces the size of the
disk to 32 GBytes, and that's enough for my BIOS at this moment.

So I've got something like this:

10 GBytes for Windows 2000
10 GBytes for Linux
10 GBytes for FreeBSD-5.2

The big problem is that the FreeBSD boot manager that I've
got installed on my MBR is only able to boot the Windows partition.



Hello Juan,


I assume that you have installed all OSes on primary partitions, if
not you should mention it.
FreeBSD's bootmanager has an option `packet' which is required to
boot from cylinder > 1023. Unfortunately it is set off by default.

There are two (or more) possibilities to recover.

1. install the FreeBSD bootmanager into MBR and Lilo/Grub into the
  Linux partition (/dev/hda2). In order to install the FreeBSD
  bootmanager with the packet option you should boot the FreeBSD
  recovery disk. This is the second disk. And then choose Fixit
  from the install menu. After you have the root prompt issue the
  following command:

boot0cfg -vB -o packet /dev/ad0

(This assumes you have a IDE disk.)

2. launch the Linux recovery CD/floppy and setup Lilo or Grub
  accordingly.
  You would need to install it in the MBR (/dev/hda) and create
  entries for Windows and FreeBSD as well.

-Hanspeter
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