Block numbers of BEB
Ricard Wanderlof
ricard.wanderlof at axis.com
Mon Oct 6 00:53:01 PDT 2014
On Sun, 5 Oct 2014, Woody Wu wrote:
> What I said of checking /proc is wrong. What I indeed checked was
> /sys/class/ubi as you mentioned. The problem is, under the
> /sys/class/ubi, there is no information about what blocks are marked as
> bad, there is only information about the total number of bad blocks.
I was thinking the mtd tool nanddump displayed which blocks were bad when
dumping, but a quick test just now revealed that that doesn't seem to be
the case.
The information is available to userspace though, so it's fairly easy to
hack together a userspace tool that gets the bad block information via
ioctls.
/Ricard
--
Ricard Wolf Wanderlöf ricardw(at)axis.com
Axis Communications AB, Lund, Sweden www.axis.com
Phone +46 46 272 2016 Fax +46 46 13 61 30
More information about the linux-mtd
mailing list