Re: Same disks different geometry?
On Thu, 17 Feb 2000, Tiago Antao wrote:
> I've a somewhat odd problem: I've 4 equal disks. The first 2 (one the
> 1st ide) have one kind of geometry. The second 2, have other geometry
> reported.... Does anyone knows why????
> hda: WDC WD136AA, 12971MB w/2048kB Cache, CHS=1653/255/63
> hdb: WDC WD136AA, 12971MB w/2048kB Cache, CHS=1653/255/63
> hdc: WDC WD136AA, 12971MB w/2048kB Cache, CHS=26354/16/63
> hdd: WDC WD136AA, 12971MB w/2048kB Cache, CHS=26354/16/63
I noticed this recently when I temporarily put a new drive on my secondary
IDE controller. The kernel/driver (2.0.34 at the time) didn't recognize
the LBA translation, so I had to specify hdd=1653,255,63 as kernel boot
parameters. I thought I read somewhere (kernel source, HOWTO, or
somewhere) that the probing or BIOD lookup or something didn't work on the
secondary controller, but I looked just now but couldn't find it again.
When I moved the disk to hda, it came up with 1653/255/63 without needing
the boot parameter.
Sorry I couldn't find the details for you, but at the time I convinced
myself that I was seeing normal behavior.
I actually don't even know if it matters one way or another. I figured it
did, because I wanted to make a 1023 cylinder partition that was as big as
possible, so I needed the LBA translated values.
...RickM...
Reply to: