[U-Boot-Users] tftpboot of multi image

[U-Boot-Users] tftpboot of multi image

[Bob White]

Are there instructions out there for using tftpboot to download an 
image with an initrd automatically boot the image?  I haven't come 
across anything.

I am trying it with a simple tftpboot command (no options) and it 
appears as though the ramdisk is not loading to a good address because 
the system lock up after uncompressing the initrd at 0x91544054 (not a 
valid address in my system.)

Bob
-- 
Robert B. White        Perigee, A Division of Sensis Corp
Software Design Engr   316 Commerce Blvd.
TEL: 315.453.7842x29   Liverpool, NY  13088
FAX: 315.453.7917      www.Perigee.com

[U-Boot-Users] tftpboot of multi image

[Dan Malek]

Bob White wrote:

> Are there instructions out there for using tftpboot to download an 
> image with an initrd automatically boot the image?  I haven't come 
> across anything.

There are several ways to do this, some are even documented :-)
How did you create the image(s) to download?

> I am trying it with a simple tftpboot command (no options)

In all cases, you are going to have to set up the environment
and commands with some kind of options to help you out.


	-- Dan

[U-Boot-Users] tftpboot of multi image

[Wolfgang Denk]

In message <4074433C.13855.BF94F6B@localhost> you wrote:
> Are there instructions out there for using tftpboot to download an 
> image with an initrd automatically boot the image?  I haven't come 
> across anything.

That's because it's just trivial:

	=> tftp 400000 /tftpboot/uImage.multi ; bootm

> I am trying it with a simple tftpboot command (no options) and it 
> appears as though the ramdisk is not loading to a good address because 
> the system lock up after uncompressing the initrd at 0x91544054 (not a 
> valid address in my system.)

OIt would have been really, really useful  if  you  had  bothered  to
provide  some  more  details,  like  the  exact output of the failing
command. SO I can just guess that your load address is too  low,  and
you  are  overwriting  parts  of the image when the Linux kernel gets
uncompressed.

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
"More software projects have gone awry for lack of calendar time than
for all other causes combined."
                         - Fred Brooks, Jr., _The Mythical Man Month_

[U-Boot-Users] tftpboot of multi image

[Bob White]

You were right, it was overwriting.  It worked at a higher address.  I 
was using address 0x00100000 which is what appears in most of the 
documentation.

Thank you.



> In message <4074433C.13855.BF94F6B@localhost> you wrote:
> > Are there instructions out there for using tftpboot to download an 
> > image with an initrd automatically boot the image?  I haven't come 
> > across anything.
> 
> That's because it's just trivial:
> 
> 	=> tftp 400000 /tftpboot/uImage.multi ; bootm
> 
> > I am trying it with a simple tftpboot command (no options) and it 
> > appears as though the ramdisk is not loading to a good address because 
> > the system lock up after uncompressing the initrd at 0x91544054 (not a 
> > valid address in my system.)
> 
> OIt would have been really, really useful  if  you  had  bothered  to
> provide  some  more  details,  like  the  exact output of the failing
> command. SO I can just guess that your load address is too  low,  and
> you  are  overwriting  parts  of the image when the Linux kernel gets
> uncompressed.
> 
> 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
> "More software projects have gone awry for lack of calendar time than
> for all other causes combined."
>                          - Fred Brooks, Jr., _The Mythical Man Month_
> 
> 
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> 

Bob
-- 
Robert B. White        Perigee, A Division of Sensis Corp
Software Design Engr   316 Commerce Blvd.
TEL: 315.453.7842x29   Liverpool, NY  13088
FAX: 315.453.7917      www.Perigee.com

[U-Boot-Users] tftpboot of multi image

[Tolunay Orkun]

Bob,

I tried this and it worked:

=> setenv bootcmd tftp 01000000 uImage.multi\; setenv bootargs root=/dev/r
am rw console=ttyS0,38400\; bootm 01000000
=> boot

(adapt it for your board... remember to saveenv before boot if you want it
to persist)

I actually wished there was a way to obtain IP etc. config from dhcp
server without booting. That way I could have more control the image to
boot from u-boot environment. It could also allow me to quickly enable
network access when dhcp server is available on the network for testing
etc.

Best regards,
Tolunay

> Are there instructions out there for using tftpboot to download an
> image with an initrd automatically boot the image?  I haven't come
> across anything.
>
> I am trying it with a simple tftpboot command (no options) and it
> appears as though the ramdisk is not loading to a good address because
> the system lock up after uncompressing the initrd at 0x91544054 (not a
> valid address in my system.)
>
> Bob

[U-Boot-Users] tftpboot of multi image

[Detlev Zundel]

Hi Tolunay,

> I actually wished there was a way to obtain IP etc. config from dhcp
> server without booting. That way I could have more control the image to
> boot from u-boot environment. It could also allow me to quickly enable
> network access when dhcp server is available on the network for testing
> etc.

Like the following?

=> setenv autoload no
=> dhcp
BOOTP broadcast 1
DHCP client bound to address 192.168.42.240
=>

Cheers
  Detlev

-- 
Who is General Failure and why is he reading my hard disk?

[U-Boot-Users] tftpboot of multi image

[Tolunay Orkun]

> Hi Tolunay,
>
>> I actually wished there was a way to obtain IP etc. config from dhcp
server without booting. That way I could have more control the image to
boot from u-boot environment. It could also allow me to quickly enable
network access when dhcp server is available on the network for testing
etc.
>
> Like the following?
>
> => setenv autoload no
> => dhcp
> BOOTP broadcast 1
> DHCP client bound to address 192.168.42.240

Glad to know. Thanks!

Best regards,
Tolunay