Hi Amarendra,
Hi Wolfgang Denk,
Thank you for the reply. Yes I am talking about "redundant environment".
If we have four "redundant environment" copies in the same partition(mtd1)... Does the below fw_env.config configuration hold good ?
U-Boot cannot cope with more than two redundant copies.
#################################################### # File: fw_env.config # Configuration file for fw_(printenv/saveenv) utility. # Up to two entries are valid, in this case the redundand # environment sector is assumed present.
Read the text carefully: "Up to two entries are valid"....
# MTD device name Device offset Env. size Flash sector size /dev/mtd1 0x00000 0x02000 0x20000 /dev/mtd1 0x20000 0x02000 0x20000 /dev/mtd1 0x40000 0x02000 0x20000 /dev/mtd1 0x60000 0x02000 0x20000 ####################################################
On the other hand why exactly do you need four redundant environments? The idea behind redundant environments is that a powercut _while_ updating one copy can be handled by having a backup copy. It is _not_ meant to handle faulting devices in any way.
Cheers Detlev