installation of FreeBSD 4.10 on Dell PowerEdge 650 fails after reboot with mountroot

[Mark]

I don't own a dell power edge but I seem to remember another thread with this same problem
and I think the problem seemed to be how the dell found the cdrom and harddrives, I think
if you look at how the ide/ata cables are run, this may be the problem, but my memory is flakky
hope this points you to the right fix.

On Fri, Aug 06, 2004 at 07:21:15PM -0500, Spumonti wrote:
> Just tried installing FreeBSD 4.10 on a Dell PowerEdge 650.   No
> problems with the install, tried creating a partition with
> "dangerously dedicated" and also, just using the entire disk with
> standard bootmanager.
> 
> Each time, after the initial reboot I get an error:
> 
> Mounting root from ufs:ad0s1a
> Root mount failed: 6
> Mounting root from ufs:ad0a
> Root mount failed: 6
> 
> Manual root filesystem specification:
> <fstype>:<device> Mount <device> using filesystem <fstype>
> eg. ufs:/dev/da0s1a
> ? List valid disk boot devices
> <empty line> Abort manual input
> 
> mountroot> 
> 
> I tried:
> 
> mountroot> ufs:/dev/ad4s1a
> 
> but that fails too.
> 
> 
> The disk is a Seagate 120GB and it's actually ad4, not ad0.  If I
> interrupt the boot process at:
> 
> >>FreeBSD/i386 BOOT
> Default: 0:ad(0,a)/kernel
> boot:
> 
> and enter:
> 
> >>FreeBSD/i386 BOOT
> Default: 0:ad(0,a)/kernel
> boot: 0:ad(4,a)/kernel
> 
> the machine will boot properly.   I've tried two things I found while
> checking on this:
> 
> 1.  Adding to loader.conf:
> rootdev="disk4s1a"
> root_disk_unit=0"
> 
> 2.  Rebuilding the kernel and adding:
> options        ROOTDEVNAME=\"ufs:ad4s1a\"
> 
> 
> Neither of which worked.    Is there something I'm missing while doing
> the installation?   If I look in  /dev   the devices are there ad4,
> ad4s1, ad4s1a, ad4s1b, etc.
> 
> About at wit's end ... any help would be great.
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