[PATCH 0/8] Qi solve GTA02 dynparts compatability and parse idenity partition
werner at openmoko.org
Wed Feb 4 21:42:21 CET 2009
Paul Fertser wrote:
> I think that was meant for the list, cc'ing it.
> But "nand createbbt" should reasonably test all the blocks and mark all the
> bad ones appropriatly, i hope.
nand createbbt is mainly for initializing the device. So it only checks
for the factory-bad blocks and puts them into the BBT. We're not supposed
to see worn-out blocks already at the factory ;-)
> Anyway, for an unbrickable device some method to deal with improper
> nandwrite usage should exist, i guess.
It's possible, it's just never been done so far. Not erasing followed
by nandwrite -m is an evil combination ...
Anyway, my plan is to hack a NAND badness dumper. That will tell if
a device can be safely "scrubbed". For those that can't, a bit more
work is needed.
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