LinuxSA Mailing list archives

  From: michael <michael@home.lyppard.com.au>
  To  : Richard Sharpe <rsharpe@ns.aus.com>
  Date: Tue, 2 Apr 2002 07:18:01 +0930 (CST)

RE: FreeBSD -- 2 identical drives, different geometries...

Hi.

I remember having this problem in a linux install I did some time back. In
the end I passed an option statement to lilo with the geometry of the
second drive in it. Something like "hdc=x,y,z" x,y,z being CHS. My
problems went away. Does Freebsd have a similar option?

I think the difference is caused by the different drive sensing, the first
drive geometry is passed from the bios, the second is sensed by the os, or
something like that.

Regards,

Michael


On Mon, 1 Apr 2002, Richard Sharpe wrote:

> On Mon, 1 Apr 2002, Richard Russell wrote:
> 
> > > 	Jump into the bios of the machine and force them both
> > > to LBA.
> > > 
> > > This "should" fix the problem.
> > > 
> > > 		cheers......
> > 
> > Unfortunately not, but thanks anyway...
> 
> /me drags himself out of coding a conversion from PanFS ACLs to NT ACLs, 
> and recalls that we had a similar problem with two IDE drives of the same 
> type ...
> 
> /me wonders ... looks 
> 
> ad0: 76345MB <MAXTOR 6L080J4> [155114/16/63] at ata0-master UDMA66
> ad2: 76345MB <MAXTOR 6L080J4> [155114/16/63] at ata1-master UDMA66
> 
> The geometries are the same, but, from memory, the BIOS reports them as 
> different ...
> 
> /me checks ... courtesy of a serial console
> 
>    Pri. Master Disk    LBA,ATA 66    80GB  Parallel Port(s)  
>    Pri. Slave  Disk    None                SDRAM at Row(s)   : 2 3
>    Sec. Master Disk    LBA,ATA 66    80GB
>    Sec. Slave  Disk    None
> 
> Hmmm, they were different. They seem to have been forced to the same.
> 
> /me shrugs ... tomorrow I can ask what we did.
> 
> Regards
> -----
> Richard Sharpe, rsharpe@ns.aus.com, rsharpe@samba.org, 
> sharpe@ethereal.com
> 
> -- 
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