public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Gerrit Van Damme <gvd@mgb-tech.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] environment variables crc
Date: Mon, 20 Apr 2009 17:46:22 +0200	[thread overview]
Message-ID: <49EC98CE.9090001@mgb-tech.com> (raw)

Hello all,

I've copied a flash image of one board to another one and changed the 
ethaddr (environment variable)
of course when I start Uboot now the system says: CRC bad, using default 
environment variables.
Now what I would like to do is recalculate that CRC, change it in the 
image and then copy it to the second board.
Can anyone tell me how I can calculate the CRC and where it is located.
I already understood that it's a CRC32.

Any other ideas are also welcome...
Maybe It's even possible with the crc32 command of Uboot but then again 
I would need the location of the CRC and which data is used to calculate it.

Thanks a lot

Regards,

Gerrit

             reply	other threads:[~2009-04-20 15:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-20 15:46 Gerrit Van Damme [this message]
2009-04-20 18:25 ` [U-Boot] environment variables crc Mike Frysinger
2009-04-21  8:15   ` Gerrit Van Damme
2009-04-21 14:43     ` Wolfgang Denk
2009-04-21 15:11       ` Gerrit Van Damme

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=49EC98CE.9090001@mgb-tech.com \
    --to=gvd@mgb-tech.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox