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Problems with my partition table.


From: Alberto Rodríguez
Subject: Problems with my partition table.
Date: Sun, 10 Dec 2000 00:57:48 +0000

        First I'd like say you congratulations for this wonderfull program, I
have read the documentation and I think it's great.

Well, my problem is that the CHS of my slave disk (hdb) on the sistem
(linux) don't match with CHS on the Bios.

If I write fdisk /dev/hdb, in my system, I get this: 


The number of cylinders for this disk is set to 1027.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/hdb: 255 heads, 63 sectors, 1027 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1             1       377   3028221   83  Linux
/dev/hdb2           378       384     56227+   5  Extended
/dev/hdb5           378       384     56196   82  Linux swap


Acording you documentation, CHS on the system and on the Bios must be
the same, so I put the follow line when I boot my system:

LILO boot: linux hdb=16368,16,63

(The above CHS is the CHS I have seen when I check it in the Bios)

So my system boot and all look like OK, but if I write now, fdisk
/dev/hdb, I get the follow lines:


The number of cylinders for this disk is set to 16368.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/hdb: 16 heads, 63 sectors, 16368 cylinders
Units = cylinders of 1008 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1             1      6009   3028221   83  Linux
Partition 1 does not end on cylinder boundary:
     phys=(376, 254, 63) should be (376, 15, 63)
/dev/hdb2          6009      6120     56227+   5  Extended
Partition 2 does not end on cylinder boundary:
     phys=(383, 254, 63) should be (383, 15, 63)
/dev/hdb5          6009      6120     56196   82  Linux swap


And this is the problem. 

Is there any way to get that Bios's CHS and System's CHS match each
other without getting the last message?

I please you very much If you could help me with problem.

Best Regards.

Juan Alberto Rodríguez.



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