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Date:      Mon, 21 Dec 2015 19:07:56 +0000
From:      John McDonnell <mcdonnjd@pcam.org>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   RE: POS system trashing hard drives during install
Message-ID:  <BLUPR07MB3216D5F435ACE02480752CBBAE40@BLUPR07MB321.namprd07.prod.outlook.com>
In-Reply-To: <alpine.BSF.2.20.1512172208100.4409@wonkity.com>
References:  <BLUPR07MB321C9B805585AB5A6456D0ABAE00@BLUPR07MB321.namprd07.prod.outlook.com> <alpine.BSF.2.20.1512172208100.4409@wonkity.com>

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> -----Original Message-----
> On Thu, 17 Dec 2015, John McDonnell wrote:
>=20
> It took some looking to find this description of the problem in the post.

Sorry, I do tend to ramble on a bit.

> Some systems do stupid things based on what they find on the hard disk.
> Lenovo and IBM before them did this, for example.  Still do, in some case=
s.  It
> is not just a GPT thing, they did stupid things with MBR partitions also.=
 The

I completely forgot about this. I have run across that issue with the IBM/L=
enovo Thinkpads before. When imaging the 300 some laptops the first time, w=
e ran into issues because it wasn't copying some part of the boot blocks an=
d I then learned about the /ib switch in Ghost which solved the issue with =
those laptops. (And also later with DeepFreeze.) Hopefully we can get this =
figured out so I can use FreeBSD on these systems.

> idea that old systems can't boot from GPT is incorrect.  GPT has the PMBR=
, a
> backwards-compatible MBR booting mechanism.

I actually did know this, but conveniently had forgotten about that. So it =
shouldn't be an issue with GPT itself, except that the system itself is pro=
bably looking for something specific in the MBR or on the disk...

> Some systems require a system partition for the BIOS.
>=20
> Given that this is a custom system, there might be some kind of security
> information stored on the drive.

It is looking like this might be the case. I had a chance to install FreeBS=
D onto another hard drive from another machine and had it up and running an=
d then brought it over to one of the same model POS machines I have sitting=
 in my office and tried to boot it up and it just locks up after detecting =
the hard drives and won't enter the BIOS.

> If it were me, I would use gpart to look at the partitioning on the XP dr=
ive.  It
> is likely MBR, but the number, type, and size of partitions could be a cl=
ue.

The XP drive is definitely MBR and not GPT. I should be able to get the inf=
o on that drive from gpart a little later this afternoon if things stay qui=
et.

Since this is locking up again like my old drives were, I'm wondering if I =
pop it back into the other PC if it will recognize it again or if it will f=
ail. I'm hopeful that it will recognize it as that would mean that my vario=
us 80 GB drives may still be alive and just need a better interface than th=
e IDE to USB adapter I was using at home. (I had been planning on using tho=
se hard drives in a couple of Playstation 2s.)

Thank you for your help so far. :)

--=20
John McDonnell
mcdonnjd@pcam.org



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