From: Ladislav Michl <ladis@linux-mips.org>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] How to boot zImage in Flash memory?
Date: Wed, 31 Aug 2005 15:59:23 +0200 [thread overview]
Message-ID: <20050831135923.GA19463@orphique> (raw)
In-Reply-To: <BOEEKPEFAJCGBAHKKMAHEEDECAAA.mail2jarod@163.com>
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
prev parent reply other threads:[~2005-08-31 13:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-31 13:13 [U-Boot-Users] How to boot zImage in Flash memory? Jarod Wang
2005-08-31 13:59 ` Ladislav Michl [this message]
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