unable to use BOOT EASY to boot linux
Gary W. Swearingen
underway at comcast.net
Thu Apr 8 16:40:55 PDT 2004
Johnson David <DavidJohnson at Siemens.com> writes:
> On Wednesday 07 April 2004 02:21 pm, Tadimeti Keshav wrote:
>> hi all.
>> I added a 2 GB linux disk as a slave and installed
>> Mandrake Linux with LILO on the root partition of
> So far this is correct. LILO needs to be on the *root* partition.
No, it doesn't. It only needs to be on some boot record: the MBR or
the BR of one of the 4 primary partitions. It was once common to put
it on a small /boot partition in the first 1024 cylinders (no longer
necessary), with the Linux root partition above 1024.
> The standard boot loader is NOT a boot loader. All it will do is boot
> the partition that is marked bootable. You want to choose BootMgr for
> each harddrive, if you want to use the FreeBSD boot manager. Please see
> the section in the Handbook" 2.5.3 Install a Boot Manager".
The IBM/MSFT(?)-standard boot loader *is* a boot loader; just slightly
less sophisticated than "Boot Easy", and not interactive. Both load
more further bootstrap code to boot one or more OSes (or some program
for that matter). I guess it's debatable, depending on definitions,
whether the standard boot loader is a boot manager.
> It's amazing that they were able to fit a general purpose boot manager
> into only 512 bytes! Chapter 7 of the Handbook "The FreeBSD Booting
> Process" describes this in excruciating detail.
It fits in 447 (=512-1-16*4) bytes, IIRC. Beware that the Handbook's
"stage one" is (at least) the third stage in the bootstrap process,
counting the BIOS boot code and the MBR boot code.
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