[flashrom] Zotac ZBOX-AD02-PLUS-U: System Testing

Stefan Tauner stefan.tauner at student.tuwien.ac.at
Sun Mar 4 23:49:00 CET 2012


On Sat, 3 Mar 2012 16:05:11 -0800
Svetoslav Trochev <svetoslav.trochev at gmail.com> wrote:

> Hi Everyone,
> 
> I just tested (read-only) one more system: Zotac ZBOX-AD02-PLUS-U. I
> am attaching the output files.

Hello,

and thanks for your mail. read tests are only useful in some cases (e.g.
untested chips), for testing full board support we need a erase/write
cycle. that does not mean that you should now erase your chip
immediately, but the log as such does not help. if you ever try to
update the firmware on that board on the other hand please send us a
note.

> I have question. Should I be concern very much about "This chip may
> contain one-time programmable memory. flashrom cannot read and may
> never be able to write it, hence it may not be able to completely
> clone the contents of this chip (see man page for details)."?
> 
> I suspect this is about the UEFI secure boot option where the keys
> are( or would) be stored. Is this correct?

we can neither confirm nor deny this presumption. seriously... no that
has nothing to do with secure boot afaik. these chips are used in many
other devices not just PCs. the OTP area is usually just a few dozen
bytes large, which might be enough for a few key hashes or so, but i
doubt anyone would use them for this. it is just a feature to store a
few bytes forever* and is probably only used in a few embedded devices.
-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner




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