AW: AW: AW: initrd rootfs ramdisk

T Ziomek ctz001 at email.mot.com
Fri Jul 22 07:12:18 EST 2005


On Thu, 21 Jul 2005, David Grab wrote:
>
>>> i solved my problem with u-boot and linux. Now i have my rootfs ramdisk
>>> mounted and functioning. But one output is weird.
>
>> Can I ask what what you had to change to get your initrd RAM disk working?
>> I'm having a very similar problem.
>
> Sure! :)

Sigh...found it, after weeks of on-and-off work...  Our board has 64 MB of
RAM but I'm passing "mem=32M" to the kernel because we want our app to man-
age the high 32 MB.

U-Boot defaults to copying an initrd into the highest available RAM.  That
put it in an area outside of Linux's knowledge, D'OH.  All I had to do was
set U-Boot's 'initrd_high' env var and things work.

Thanks for the info anyway; I've saved it.
Tom

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