[U-Boot-Users] autoscript?

Wolfgang Denk wd at denx.de
Fri Nov 29 12:34:46 CET 2002

In message <3DE74E8B.B8B12592 at imc-berlin.de> you wrote:
> > Well, _making_ the image is  easy.  the  mkimage  tool  will  happily
> > combine any files you pass to it into one multifile image (MFI).
> I thought I've seen a command line option for "mkimage" saying something about
> scripts...

Sure. You can build a script image.

But your original question was how to  "make  an  u-boot  image  that
contains  a kernel _and_ a script". That would be a MFI, and there is
no script support for MFIs.

> Than how should I understand the following lines from
> ppcboot/common/cmd_autoscript.c

You can run a script image. This is an image that contains  ONLY  the

> Is this actually a multi step solution?
> First download the script, then download the binary data (e.g. kernel image) and
> then execute the script?

No. But you cannot combine a Linux kernel and a script  in  a  single
MFI (yet). Or actually you can, but you canot make any use of such an
image ;-)

> Normally the board boots from flash (in detail: pImage is stored on a JFFS2
> partition, which serves as the root fs as well).
> But in the case that no (valid) pImage is found, I would like ppcboot (sorry,
> still using this) to automagically download a whole pFlashdisk image and burn
> that to the flash. So I thougth about using an MFI (containing the data and the
> update script) that gets downloaded...

Use the update script to download and install the kernel image, then.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Old programmers never die, they just branch to a new address.

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