[6051] in linux-scsi channel archive
Re: Large Drives w/aic7895 on Tyan Thunder 2
daemon@ATHENA.MIT.EDU (Henrik Johansson)
Wed Mar 10 07:59:04 1999
Date: Wed, 10 Mar 1999 11:43:54 -0100 (GMT+1)
From: Henrik Johansson <henrik@lcdata.se>
To: Mark Garlanger <garlangr@furball.cyberramp.net>
Cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <199803100725.BAA00106@furball.cyberramp.net>
Hi Mark.
I've come across something similar way back when I moved my
3.2Gb Quantum Fireball from my old system with an Adaptec
1542c-controller to the new one using the AIC-7860 chipset.
The AIC-7860 didn't use the same scheme to adress the disk
and as a result I was unable to boot from it.
Painfully, the only way I was able to resolve the matter
was to lowlevel-format the disk, but one can also use
Linux fdisk to alter the geometry of the media and apply it
to a new partiton-table (this can be !dangerous! if one don't
know excatly what one's doing, so use only if there's no other
alternative).
Good luck,
Henrik J.
On Tue, 10 Mar 1998, Mark Garlanger wrote:
>
> I having a problem with my new system: Tyan Thunder 2 with
> the aic-7895 controller. I have a 8.7G U/W Micropolis drive
> that I had been using with a PPro system(and aic-7880) with
> no problems, but when I put it on my new system instead of
> translating the number of heads/sectors/cylinders to
> a reasonable number 255/63/1037 like the old system would
> do, it leaves it at 64/32/8296 which causes problems with
> lilo. Even though the two systems sees the drive differently,
> I am still boot from it without reformating. It is currently
> on 2.0.34. I faintly remember being able to specify the
> harddrive parameters at the boot prompt and I tried
> "sda=255,63,1037" without any luck. In the MB Bios I have
> disabled the IDE totally. In the SCSI BIOS I have enabled
> the option for >1G Drives but it seems to not affect it.
> I am open for any ideas....
>
> Thanks,
> Mark
>
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