On 2016-07-11 3:53 AM, Norm X wrote:
On 2016-07-11 2:56 AM, Paul wrote:
[snippage]
This is an example of a typical command while
working with an HPA. You do one of these, then
reboot, as you cannot issue a second HPA related
command in the same session. You cannot insert
an HPA and remove an HPA, without rebooting.
It's a hardware trap door, and not something
you can program around in the Linux kernel or
anything. It's the way the hardware works
(on purpose).

sudo hdparm --yes-i_know_what_i_am_doing -N p# /dev/sdX

I remember it cost me a reboot, learning that
I had to add the idiotic

--yes-i_know_what_i_am_doing

to make the command work :-) Of course I don't
know what I'm doing. Why make it obvious ? :-)

HTH,
Paul

I think maybe you are conflation Windows and Linux. Nevertheless there
are different methods to achieve the same ends. In the present case, I
tried to use PMagic to format the Seagate. It failed and I think the
reason it failed is the lack of a partition table. PMagic couldn't even
SEE the HDD. nor could the Win10 DVD. Maybe PMagic can solve that
problem, and create a partition table, I'll check.

Ignore previous comment: PMagic reports only 7.5 GB size 30.0 MB used
and 0 free.

I probably misinterpreted the info presented. 7.5 GB is the size of a
flash drive. PMagic said nothing about Seagate.