Unable to find device node for /dev/ad4s1b in /dev

[Garrett Cooper]

On Mon, Sep 20, 2010 at 12:56 AM, Bruce Cran <bruce at cran.org.uk> wrote:
> [moved to freebsd-sysinstall]
>
> On Mon, 20 Sep 2010 03:17:54 -0400
> Henry Olyer <henry.olyer at gmail.com> wrote:
>
>> This is what I know, I run the FBSD install program and immediately,
>> as soon as the system attempts to do the necessary partitioning.
>> That's when the failure occurs, with the complaint that:
>>
>> Unable to find device node for /dev/ad4s1b in /dev
>
> That's a sysinstall error. Could you tell me what FreeBSD version you're
> trying to install, what HDD you have and how you're trying to partition
> it please? I'd be really interested in getting this replicated and
> fixed!

    Some important questions: was this a clean disk? If not, what was
it partitioned with previously, and in particular which OS/installer
did you use to setup the disk?
    This seems vaguely reminiscent of the PCBSD gpt protective MBR
scheme, where one needs to clear the first cylinder and last cylinder
on the disk in order to partition with DOS style MBRS.
     Debug console output would help as well.
Thanks,
-Garrett