EIDE Cyl > 1024.

EIDE Cyl > 1024.

Post by Edward Habj » Fri, 23 Dec 1994 09:11:28



Hi,
   I have a new WD Enhanced IDE drive :

        Cylinders: 1048  Heads: 16  Sectors: 63

   And I get a message stating that some software will not run because
the swapper part. is cylinders 1022 to 1048.

  Is there a solution ?

  ie can I tell LILO something and trick it will logical values and not
     physical values.

Thanks,

Ed.
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EIDE Cyl > 1024.

Post by Ivo Janss » Fri, 23 Dec 1994 22:32:50


When will a real 1024-guru stand up and tell everybody everything
about this stupid limit.

I'm planning to install linux, but I'm not sure how to partition my
drive. I'm afraid I'm going over 1024 cyl. with one bootable
partition.

I'm planning the following:
400 MB Linux
200 MB OS/2
400 MB DOS
 16 MB linux swap

Together: 1 Gig of harddiskspace (WD 3100 EIDE)
BIOS says: 2100 cyl, 16 heads, 63 sectors


(found on a slackware 2.1.0 mirror: dutepp0.et.tudelft.nl) that his
BIOS says 505,64,63. And than he offers a solution. Patrick: do you
know what to do in my case?

Maybe if I do some translation in the BIOS (505 cyl's, 64 heads) I'll
stay under the 1024 cyls with all my partitions. This is neccesary
because I want to be able to boot linux, dos and os/2.

I think this is the best solution. Anyone another opinion?
Please reply here of e-mail me.

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EIDE Cyl > 1024.

Post by Paul Caprio » Sat, 24 Dec 1994 07:05:56




>Together: 1 Gig of harddiskspace (WD 3100 EIDE)
>BIOS says: 2100 cyl, 16 heads, 63 sectors


>(found on a slackware 2.1.0 mirror: dutepp0.et.tudelft.nl) that his
>BIOS says 505,64,63. And than he offers a solution. Patrick: do you
>know what to do in my case?

Patrick's BIOS really reported 525,64,63   The 505 was just a typo.
Note that 525*4=2100 and 64/4=16
This is the same setup you have, judging from the information you give above.

Quote:>Maybe if I do some translation in the BIOS (505 cyl's, 64 heads) I'll
>stay under the 1024 cyls with all my partitions. This is neccesary
>because I want to be able to boot linux, dos and os/2.

Keep in mind that you really do have 2100 cylinders.   The 525 is just a lie.
It is my understanding that the root partition should be located entirely
within the first 1024 cylinders (or the first 256 cylinders if you are
pretending that you have 64 heads).  After it boots, Linux will happily
access your entire disk.  (automatically with newer kernels, using the LILO
boot options with older kernels).  The swap partition and a partition(s) for
/usr and /home can be set up in the higher numbered cylinders without any
problems.

Paul

 
 
 

EIDE Cyl > 1024.

Post by Richard Krehbi » Thu, 29 Dec 1994 03:32:17



Quote:> Hi,
>    I have a new WD Enhanced IDE drive :

>    Cylinders: 1048  Heads: 16  Sectors: 63

>    And I get a message stating that some software will not run because
> the swapper part. is cylinders 1022 to 1048.

>   Is there a solution ?

I got the same message when preparing Linux on my Micropolis 1.7G SCSI
drive, to the effect that cylinder numbers greater than 1023 are a
problem for some software.  Oh, and Yggdrasil (Summer '94) was unable
to properly calculate my LILO configuration for me; I had to set it up
manually.  However, it has not been a problem for any software I'm
running.  My swapper volume starts at 1024.

My suggestion is to ignore the message.
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