From mboxrd@z Thu Jan 1 00:00:00 1970 From: u-boot user Date: Fri, 11 Jan 2008 16:09:18 -0800 (PST) Subject: [U-Boot-Users] problems with CRC in fw_printenv and fw_setenv utility and use Message-ID: <14767876.post@talk.nabble.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello all, I have built the binary fw_printenv by using mtd-user.h from mtd-utils on the internet as it fw_printenv won't compile it without using that file. So I have used mtd-user.h and mtd-abi.h. The contents of my configuration file are # MTD device name Device offset Env. size Flash sector size /dev/mtd1 0x0000 0x4000 0x4000 When I run fw_printenv it complained with error Warning : Bad CRC using default environment in env_init function in fw_env.c source code. To gain a better understanding I print the value crc1 calculated using crc32(0,environment.data,ENV_SIZE). The value it prints is CRC computed:FE641197 If I print the environment.crc value it is D0CA8A0E. As the checksum values are different crc1_ok is not set and I get the error. Any clue as to why these values would be different? When I use the fw_setenv utility to set an environment variable it gives the following errors Writing CRC value to flash: D0C78567 Unlocking flash... Other dev values are: 0 Current dev value: 0 Done Erasing old environment... MTD erase error on /dev/mtd1: Invalid argument Error: can't write fw_env to flash I want to be able to set bootvars and print bootvars from user space Linux code. Linux has support for mtd-utils we tested the mtd-utils interface. I look forward to your replies. I appreciate your help. Thanks and Regards -- View this message in context: http://www.nabble.com/problems-with-CRC-in-fw_printenv-and-fw_setenv-utility-and-use-tp14767876p14767876.html Sent from the Uboot - Users mailing list archive at Nabble.com.