On Mon, Nov 7, 2011 at 6:46 AM, Stuart Henderson <[email protected]>wrote:

> On 2011/11/06 23:43, Mehmet Erol Sanliturk wrote:
> > Dear All ,
> >
> > I tried to install OpenBSD 4.9 amd ,  OpenBSD 5.0 amd Release and
>  OpenBSD
> > 5.0 amd Snapshot 2011-11-06 .
> > They could NOT be able to detect SATA II hard disk .
> > I have checked the BIOS devices part . There were three options : IDE ,
> > RAID , AHCI .
> > It was set to RAID .
> > I have set it to AHCI . Then OpenBSD 5.0 amd  Snapshot 2011-11-06 could
> be
> > able to detect hard disk as sd0 .
> >
> > The OpenBSD is the only operating system which fails to detect hard disk
> on
> > this computer in RAID mode .
> > The main board is Intel DG965 WHM .
> > Other operating systems ( FreeBSD , NetBSD , DragonFlyBSD , Fedora ,
> CentOS
> > , Mandriva , PCLinuxOS , Mint Linux , Puppy Linux ,
> > OpenSUSE , and some others ) all are able to detect the hard disks and
> > install successfully in that RAID mode .
> >
> >
> > Thank you very much .
> >
> > Mehmet Erol Sanliturk
> >
>
> OpenBSD deliberately doesn't support the raid mode on these controllers.
>
> ----------------------------
> revision 1.163
> date: 2010/04/16 22:15:39;  author: kettenis;  state: Exp;  lines: +1 -10
> Remove Intel RAID IDs for now.  They can be added back when code has been
> written to detect the Intel RAID metadata format such that we no longer
> risk
> overwriting it.  If this makes you lose your disks, you'll need to change
> the
> controller type from RAID to AHCI in the BIOS to get them back.
>
> ok marco@, deraadt@
> ----------------------------
>


Dear All ,

Is it possible to mention this in .Install text(s) and/or installation
script
( My suggestion is both places ) :

For example :

Intel RAID mode has been detected .
Install will not detect hard disk in that mode .
If it is feasible , modify BIOS drive setting to AHCI ( or IDE ? ) ,
otherwise installation is NOT possible in that mode .



Another suggestion may be :

If it is possible , use an external hard disk .
is displaying sd0 as available disk when an external USB HDD is attached
just like an internal HDD . This point is very much confusing .

I think a warning about specifying
   - the detected situation about RAID mode
   - internal HDD(s) is (are) ignored ,
   - external USB HDD detected as ... ( a name different than internal HDD
name ) .

It is not possible to understand which HDD is detected from the
installation message :
It is internal HDD or external USB HDD .

Assume that external HDD is accidentally connected and contains very
valuable data without backup ( NOT a good practice but assume it is like
that ) . It will be destroyed without noticing that it is the detected hard
disk .



Thank you very much .

Mehmet Erol Sanliturk

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