Re: Help, severe probs with 10 GB IDE-HD on 2.0.35!

Andre M. Hedrick (hedrick@astro.dyer.vanderbilt.edu)
Mon, 7 Dec 1998 10:06:40 -0600 (CST)


This is a kernel problem/bug that is about to be solved in 2.1.132.
I don't plan to back code to 2.0.36 unless Alan asks me to do so.

Until then use your append line.

hda=19841,16,63 hdc=19841,16,63

This will set a forced-geometry flag to be set.

On Sun, 6 Dec 1998, hpj wrote:

> Hello again,
>
> first, I would like to thank Alan Cox, Mark Hahn,
> Horst von Brand, and David B. Rees for their replies.
>
> First of all, it was a defect drive!
> BTW: Why badblocks (-vw) doesn't report those failures?
> (only klogd does)
> Why sfdisk tries to load the xd module?
>
> At 2nd look, some weirdness remains:
> As a lucky guy, I have two of those drives.
> Both should behave the same in terms of geometry.
> But they don't:
>
> Both drives have identical BIOS setting (CHS):
> 19481/16/63 mapping: normal
> BIOS display: CHS, UDMA 2, 10240 MB
>
> Kernel reports:
> <4>hda: FUJITSU MPC3102AT E, 9765MB w/0kB Cache, CHS=1024/255/63
> <4>hdc: FUJITSU MPC3102AT E, 9765MB w/0kB Cache, CHS=19841/16/63
>
> Useless to say, that my boot manager (netboot) complains about not
> being able to load the boot block! (although, it's below the 1024 cyl)
> When booting from floppy, the kernel has no problems with hda.
> DOS sees only 8033 MB of hda.
>
> With LBA mapping enabled, netboot/lilo works again, but kernel
> doesn't change his view of drive geometry?!
>
> Did anybody has a clue, why BIOS uses different geometries on
> identical configured drives? (b)illness/silliness? I am confused!
>
> ASUS P5A, BIOS v. 1004 (actual)
>
> Comment to the
> Dumb question: Which is "better" SCSI or IDE disks? thread:
> The bigger the drives become, the easier is SCSI to handle!
> (although not without problems, too)
>
> cu
>
> Hans-Peter
>
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Cheers,
Andre Hedrick
The IDE-FNG for Linux
The APC UPS Specialist for Linux

http://www.dyer.vanderbilt.edu/server/udma/
http://www.dyer.vanderbilt.edu/server/apcupsd/apcupsd-3.5.0.bin.tar.gz

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