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Re: trouble with IDE > 1024 Cyl




On Thu, 22 Jun 1995, Paolo Supino wrote:

> 
> 
> On Wed, 21 Jun 1995, Shlomo Hasson wrote:
> 
> > Well,
> > You can have the 2 dos partitions as primary ones, and set an extended partition
> > aside for the linux. The linux will need at least 2 partitions which will
> > be contained in the extended partition. These are logical partitions.
> > I think logical partitions HAVE TO start from /dev/hda5 even if you do not
> > use a /dev/hda4 for a primary partition, but check it out anyway.
> the number in the partition is a running number from 1 to 8. You can't 
> have hda5 without having hda4 and hda3 and so on.
> What more you can't boot linux from an extended dos partition (making 
> one if dos' fdisk creats a dos extended not only extended).
> 
> 
> 
> 		Paolo Supino
> 

    As far as now ext2 filesystem have no problems to use cyl > 1024.
Problems begin when you trying to install lilo. I had solved this problem
by using loader named loadlin which loads linux from dos. You must create
dos batch file, for instance linux.bat witch must be in directory in your
PATH, with line like this: 

c:\loadlin\loadlin  c:\loadlin\zimage  root=/dev/hdb1  ro

where zimage is compressed kernel image witch you have to put on dos
filesystem, /dev/hd?? is your root filesystem. Now you boot with dos and
then issue command linux and Linux will be loaded. The convenience is that
your linux partition may be on extended partition (and not on primary as
with lilo) and you have no problem using cyl > 1024.
	Also, if you have DOS 6.2 or higher, you can use menu at boot time
to chose what you want to load - dos or linux. 

         Benjamin Liansky
  e-mail:liansky@alon.cc.biu.ac.il