NAND flash is very likely to contain bad blocks.
Currently, mtd and therefore sysupgrade fails when it encounters a single bad block, potentially leaving an unbootable system.
This patch allows the mtd utility to skip bad blocks in NAND flash and complete sysupgrade successfully.
Patch by: Matthew Redfearn <matt.redfearn@nxp.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 40021
The current implementation of mtd will not append the backup
file created by sysupgrade to the correct partition, as mtd will append
the data to first jffs2 partition it finds. As the kernel is also
stored on a jffs2 partition (which resides before the overlay
partition), the data will be appended to this partition.
To fix this problem, a new option
-s <number> skip the first n bytes when appending data to the jffs2 partiton, defaults to "0"
is added to mtd.
Signed-off-by: Peter Wagner <tripolar@gmx.at>
SVN-Revision: 38807
Felix Fietkau