Re: Redhat booting Linux - newbie question

[Weqaar Janjua <weqaar at yahoo dot com>]

MPC8280 has an onboard redBoot monitor which does
support linux booting but the compressed zImage is
loaded at the specified address location and will be
decompressed and run from a different location
depending on the available memory in RAM, for this you
need to convert the kernel image that you built into
an S-record file so you don't need to specify an
address when you boot. Also there might be interrupt
layout differences between MPC8280 and MPC8260ads, so
make sure all interrupts can be disabled. Which
filesystem are u using on flash, jffs2?
--------------------------------------
Weqaar Janjua
Senior, Computer Systems
Arizona State University - Polytechnic
--------------------------------------

--- Srivatsan <srivatsan@deccanetworld.com> wrote:

> 
> 
> Hi all,
> 
>      I am a newbie to Redhat and am considering some
> pointers to the
> following questions.
> 
>     1) I tried to boot Linux using Redhat on a
> Rattler board. The board
> I am having is a Rattler board (MPC8280) but the
> Linux kernel I am
> having is a kernel for MPC8260ads board (Please
> don't ask me to change
> the kernel for Rattler board). I build the kernel
> with initial ramdisk
> and download the kernel onto the target (rattler
> board) at the address
> 0x00400000.[This is the address which is given in
> mkimage command]. The
> kernel build is zImage.initrd.elf .
> 
>        But when I tried to give a <go 0x00400000>
> redboot starts
> printing some junk for every key pressed on the
> keyboard [I feel that
> the control is not transferred to the Linux Kernel
> but is still in the
> Redboot or redboot is throwing some exception].
> Please give me guidance
> on booting the Linux Kernel with using Redboot.
> 
> 
> 2) Can anyone give me pointers on how much time
> Redboot takes to boot a
> Linux Kernel (redboot boot + decompression]?
> 
> With Best Regards,
> C.R.Srivatsan   
> 
>     
> 
> 
> 
>
********************************DISCLAIMER**********************************
> 
> This e-mail and any attachment is for authorised use
> by the intended
> recipient(s) only. It may contain proprietary
> material, confidential
> information and/or be subject to legal privilege of
> Deccanet Designs Ltd.
> If you have received this message in error, please
> notify the originator
> immediately. If you are not the intended recipient,
> you are notified that
> you are strictly prohibited from retaining, using,
> copying, altering or
> disclosing the contents of this message.
> 
>
****************************************************************************



		
__________________________________ 
Do you Yahoo!? 
The all-new My Yahoo! - What will yours do?
http://my.yahoo.com