[U-Boot-Users] bootp

[ppc user <ppc_user@lambdaaccess.com>]

A bit more info --
it looks like the correct file name is sent in the dhcp request,
but then u-boot switches to tftp mode with the incorrect file name in 
the request.
I have placed the capture file here:
http://www.lambdaaccess.com/u-boot.libpcap

thanks again for your help.


> I captured some packets using ethereal and I see the request to the 
> bootp server contains the wrong file name.  The reply from the server 
> matches the request.  
> 
> Here is the output from U-boot in the 3 cases I described:
> 
> (1) Environment variable bootfile = zImage, try to load some other 
file:
> 
> u-boot> bootp 100000 10got.img
> BOOTP broadcast 1
> DHCP client bound to address 192.168.0.43
> TftpStart(zImage:192.168.0.1)
> TFTP from server 192.168.0.1; our IP address is 192.168.0.43
> Filename 'zImage'.
> Load address: 0x100000
> Loading: 
> #################################################################
>          ##################################################
> done
> Bytes transferred = 585718 (8eff6 hex)
> u-boot>
> 
> 
> (2) no bootfile env variable
> 
> 
> u-boot> bootp 100000 10got.img
> BOOTP broadcast 1
> DHCP client bound to address 192.168.0.43
> TftpStart(no bootfile:192.168.0.1)
> *** Warning: no boot file name; using '2B00A8C0.img'
> TFTP from server 192.168.0.1; our IP address is 192.168.0.43
> Filename '2B00A8C0.img'.
> Load address: 0x100000
> Loading: *
> TFTP error: 'File not found' (1)
> Starting again
> 
> (3) tftpboot command
> 
> u-boot> tftpboot 100000 10got.img
> TftpStart(zImage:192.168.0.1)
> TFTP from server 192.168.0.1; our IP address is 192.168.0.44
> Filename '10got.img'.
> Load address: 0x100000
> Loading: #
> done
> Bytes transferred = 921 (399 hex)
> u-boot>
> 
> 
> > In message <E1Awx0E-000193-Ly@server4.anonymousnetworks.com> you 
> wrote:
> > > I'm using u-boot 1.0.0 on a xilinx embedded ppc 405 and I see the 
> > > follow unexplained behavior:
> > > 
> > > if I do a bootp <address> <filename> it always bootp's the 
filename 
> > > stored in environment variable bootfile rather than the filename 
I 
> > > specify in the command line.  If I have no bootfile env variable 
it 
> > > tries to bootp a garbage file name.
> > 
> > What does the reply packet sent by your BOOTP server contain 
exactly?
> > 
> > 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
> > If God had a beard, he'd be a UNIX programmer.
> > 
> > 
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> 
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