On Wed, Aug 31, 2005 at 09:13:25PM +0800, Jarod Wang wrote:
Hi all,
Please wrap lines before posting to this list next time.
I tried to migrate u-boot-1.1.3 on my Samsung S3C44B0X based evaluation board and my target was booting uClinux with U-Boot. Several days ago I could see the serial port output and the user input prompt in minicom at last. Then I configured and compiled the uClinux-dist-20040408 on the Fedora Core 4 platform. As a result, I got an 826KB zImage binary file(As far as I know, the zImage consists of a Linux kernel image and a ramdisk image.) in the uClinux-dist/images/ directory. I downloaded it into the Flash memory(Intel 28F320C3B) using a flash programmer application on the Windows XP platform. But I've tried to boot the zImage using "bootm" commands several times but all failed. U-Boot always prompted "Bad Magic Number" error. So I wonder how to boot zImage in Flash memory in my case.
That's because bootm loads _image_, so you have create one using mkimage tool. (There is also go command to jump at given address)
Besides, I still have some questions about the migration. For instance, I don't know the meaning of "CONFIG_BOOTFILE" when I referred to include/configs/B2.h. And I don't know how to configure my "CONFIG_BOOTARGS" correctly. And the distinction between "CONFIG_BOOTARGS" and "Environment Variables" since I am not familiar with the booting of Linux.
CONFIG_BOOTFILE is compile time default for "bootfile" environment variable. It is used as default when you, for example, run fsload command without argument. CONFIG_BOOTARGS is compile time default for "bootargs" environment variable. You didn't read README, did you?
Sorry for my poor English and any advice would be appreciated.
Reading available documentation would be appreciated as well :)
Best regards, ladis