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From: John Baldwin <jhb@freebsd.org>
To: freebsd-amd64@freebsd.org
Subject: Re: amd64/182686: bios lost HDD after installing freebsd-9.x
Date: Mon, 7 Oct 2013 11:41:27 -0400
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Cc: freebsd-gnats-submit@freebsd.org, XXXXXX <rekunov@gmail.com>
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On Saturday, October 05, 2013 10:18:42 am XXXXXX wrote:
>=20
> >Number:         182686
> >Category:       amd64
> >Synopsis:       bios lost HDD after installing freebsd-9.x
> >Confidential:   no
> >Severity:       serious
> >Priority:       medium
> >Responsible:    freebsd-amd64
> >State:          open
> >Quarter:       =20
> >Keywords:      =20
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Sat Oct 05 14:20:00 UTC 2013
> >Closed-Date:
> >Last-Modified:
> >Originator:     =E1=CE=C4=D2=C5=CA
> >Release:        9.2
> >Organization:
> >Environment:
> >Description:
> I have installed freebsd-9.1 on my AMD 64 machine it worked well. But I h=
ave=20
decided to go on 9.2 version and. I booted from usb, create slice and bsd-
partitions on IDE hard drive using gpart and newfs. then i used bsdinstall =
to=20
install the system. after installing i make "shutdown -p now". When i turne=
d=20
my computer on, BIOS did not detect any hard drive.
> Then i installed system on SATA hard drive and have got the same result.=
=20
When i connect this SATA drive to windows machine via USB - disk is OK. Aft=
er=20
deleting FreeBSD slice and connecting the disk back to AMD64 its BIOS has=20
detected the drive.

Did you use GPT?  If so, try using MBR instead for partitioning your disk.

=2D-=20
John Baldwin