From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200101080252.f082qVP12117@denx.local.net> To: Micael balow cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: new PPC Questions From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Mon, 08 Jan 2001 10:10:03 +0800." <20010108021003.92030.qmail@web11708.mail.yahoo.com> Date: Mon, 08 Jan 2001 03:52:31 +0100 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Dear Micael, in message <20010108021003.92030.qmail@web11708.mail.yahoo.com> you wrote: > > >AfterI ported a image into the board,when I used the > >following commmand > > => bootm 10020000 > > >to boot that image,the message just like the one > >listed below was displayed. > > => # Booting Linux kernel at 10020000 > => Bad Header Checksum The linuxppc-embedded mailing listy is not exactly the right place to ask this question; what you see is an error message from the PPCBoot firmware on your board, so if you have to ask the ppcboot-users list is probably a better place. > I think,the reason for this has something to do > with the way I compile the image. What do you think? > Please give a hint.Thank you! Well, I think the error message is pretty clear: the one of the checksums stored with your image is not what PPCboot expects (PPCBoot images have two checksums: the first to validate the header information, the second to check the data payload). Either the image you stored at address 0x10020000 is not a PPCBoot image at all, or it got corrupted during download or in memory. You can try to dump the memory region using md 10020000 This might give an indication what happened. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de There are three things I always forget. Names, faces - the third I can't remember. - Italo Svevo ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/