From: Chris Hallinan <clh@net1plus.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] PPCBoot vxworks question
Date: Fri, 10 Jan 2003 13:18:45 -0500 [thread overview]
Message-ID: <NEBBKJPFOLJNBMFNKBIICENMDDAA.clh@net1plus.com> (raw)
In-Reply-To: <3E1F0580.3050801@jpl.nasa.gov>
Well, I don't know what the VxWorks bootloader does, but I know
PPCBoot/U-Boot. In order to get any of the boot[x] commands to
work, it assumes you have the kernel image loaded into memory
already. For example, to load and execute the Linux kernel, here is
one method assuming you have a properly functioning Ethernet i/f and
a tftpserver.
tftpboot 400000 linux-ppcboot-image
bootm 400000
The first line loads the kernel image into memory at my chosen
address of 0x40_0000 and the second line transfers control to it.
The other thing you must do for this to work is to put the PPCBoot /
U-Boot header on your kernel image using the mkimage utility that
comes with U-Boot. The README file in U-Boot distribution contains
this info and much more!
-Chris Hallinan
DS4.COM, Inc
> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net
> [mailto:u-boot-users-admin at lists.sourceforge.net]On
> Behalf Of Timothy
> Canham
> Sent: Friday, January 10, 2003 12:40 PM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] PPCBoot vxworks question
>
>
> I am new to the list and new to PPCBoot/UBoot, so
> apologies in advance
> if this is old territory. I am trying to load a vxworks
> kernel located
> on an external server, using the typical vxworks boot
> loader. i.e., the
> vxworks boot loader loads a kernel from a remote server
> using rsh and
> jumps to it. From what I can see, PPCBoot has the bootvx
> command, but it
> appears to require that the vxworks kernel already be
> loaded to work.
>
> Can someone post the equivalent procedure to duplicate in
> PPCBoot what
> the vxworks boot loader does?
>
> --
> -------
> Timothy K. Canham
> Isaiah 26:3
> tim at timcanham.com
> http://www.timcanham.com
>
>
>
>
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prev parent reply other threads:[~2003-01-10 18:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-10 17:40 [U-Boot-Users] PPCBoot vxworks question Timothy Canham
2003-01-10 18:18 ` Chris Hallinan [this message]
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