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 ?

####################################################
# 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.

# 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
####################################################


Thanks & Regards
Amarendra Reddy

-----Original Message-----
From: Wolfgang Denk [mailto:w...@denx.de]
Sent: Thursday, April 28, 2011 3:58 PM
To: Amarendra Reddy
Cc: u-boot@lists.denx.de
Subject: Re: [U-Boot] fw_setenv usage for multiple copies of U-Boot Environment 
Variables

Dear Amarendra Reddy,

In message 
<faccda52663f0249a0002e4e413b0aa7e62...@pocitmsexmb01.lntuniverse.com> you 
wrote:
>
> Consider we have multiple copies of U-Boot Environment Variables.
> Each copy protected by CRC value.

Your question is not quite clear.  I assume you are talking about what we call 
"redundant environment".

> Can we use fw_printenv and fw_setenv utilities from Linux Application ?

Yes, fw_printenv and fw_setenv can handle redundant environment setups.

Best regards,

Wolfgang Denk

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Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de In the 
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