GEOM_PART: Integrity check failed (ada2, MBR)

[Steven Hartland]

----- Original Message ----- 
From: "Ronald F. Guilmette" <rfg at tristatelogic.com>
To: "Steven Hartland" <killing at multiplay.co.uk>; <freebsd-geom at freebsd.org>
Sent: Tuesday, May 20, 2014 9:20 PM
Subject: Re: GEOM_PART: Integrity check failed (ada2, MBR)


> 
> In message <90779722305645B99AA673EDA11C349F at multiplay.co.uk>,
> "Steven Hartland" <killing at multiplay.co.uk> wrote:
> 
>>----- Original Message ----- 
>>From: "Ronald F. Guilmette" <rfg at tristatelogic.com>
>>
>>> I already have sought, and have already been provided with the steps
>>> that I need to undertake in order to "repair" the apparent capacity of
>>> the drive in question, and I am already making plans to replace my
>>> *&^%$#@ Gigabyte motherboard with something different with all due
>>> haste.
>>
>>Just in case you or others are unaware later versions of camcontrol have
>>the ability to see and edit / remove HPA.
> 
> I, for one, was most certainly *not* aware of that.
> 
> Could I ask you to please elaborate?  How would this be done... using
> camcontrol?
>

>From memory, as its been a while since I wrote it, first use identify to
see the details:
camcontrol identify ata0

You'll see the details of HPA at the bottom e.g.
Host Protected Area (HPA)      yes      yes      33554432/250069680
HPA - Security                 no

If you're disk has HPA enabled you can remove it by configuring the
max sectors to the full disk size (the number on the right)

If the drive doesn't have security (a password set) as above:
camcontrol hpa ada0 -s 250069680 -P

If it is locked you need to specify the password to unlock it.
camcontrol hpa ada0 -s 250069680 -P -U <pwd>

For more details see man camcontrol.

Hope this helps.

    Regards
    Steve