reading block of data from host problem!!!!

reading block of data from host problem!!!!

[Anand Franklin J]

Hello All,
    can any body tell what is the problem, it just hangs in reading the
"block 1" of zImage.treeboot and not proceeding further from tftp
booting process. I am using IBM power pc redwood 4.
thanking you
franklin


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Re: reading block of data from host problem!!!!

[Felix Domke]

Anand Franklin J wrote:
> Hello All,
>     can any body tell what is the problem, it just hangs in reading the
> "block 1" of zImage.treeboot and not proceeding further from tftp
> booting process. I am using IBM power pc redwood 4.

Although this isn't related to linux, this probably only means that no
tftp server is running at all.

(yes, i got this "error report" from a customer, and this was the fault)

try "tftp localhost" -> "get zImage.treeboot" (or whatever) and see if
tftp is *really* working on your tftp server machine.

felix


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Re: reading block of data from host problem!!!!

[Anand Franklin J]

Hi Felix
    the tftp server is working. "tftp localhost" with get zImage.treeboot
for localhost is working. still the problem exist. I don't what is the
problem.
thanking you
franklin

Felix Domke wrote:

> Anand Franklin J wrote:
> > Hello All,
> >     can any body tell what is the problem, it just hangs in reading the
> > "block 1" of zImage.treeboot and not proceeding further from tftp
> > booting process. I am using IBM power pc redwood 4.
>
> Although this isn't related to linux, this probably only means that no
> tftp server is running at all.
>
> (yes, i got this "error report" from a customer, and this was the fault)
>
> try "tftp localhost" -> "get zImage.treeboot" (or whatever) and see if
> tftp is *really* working on your tftp server machine.
>
> felix


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Re: reading block of data from host problem!!!!

[Gary Thomas]

On Wed, 2003-03-05 at 22:18, Anand Franklin J wrote:
>
> Hi Felix
>     the tftp server is working. "tftp localhost" with get zImage.treeboot
> for localhost is working. still the problem exist. I don't what is the
> problem.
> thanking you
> franklin
>

Perhaps your target board is being blocked access to the TFTP server?
Depending on your host, there may be a number of layers where this
can occur.  For example, with a Linux host:
  * Firewall which prevents TFTP requests from being allowed in
  * /etc/hosts.{allow,deny} may need to be set up to allow outside hosts
Others may exist, depending on your host situation.

Now that you know that TFTP is working, at least locally, try it from
a different client (other than your target board).  If this works, it's
possibly a problem with the board (but could still be setup).  If it
does not work, then check the various logs (/var/log/{messages,secure}
and others) to see why.

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reading block of data from host problem!!!!

[Philip.Lougher]

>Hello All,
>    can any body tell what is the problem, it just hangs in reading the
>"block 1" of zImage.treeboot and not proceeding further from tftp
>booting process. I am using IBM power pc redwood 4.
>thanking you
>franklin

As usual, you need to give more information, otherwise it's anyone's guess
what's happening.

In this case, is the board hanging trying to read the first block, or has
it hung *after* reading the first block?

If it's trying to read the first block, then you've got a network
configuration problem.  Use tcpdump on the ethernet link to see what (if
any) traffic is going between the host and server.

If it's crashed after reading the first block, the first block download
probably over-wrote some bootloader critical information.  Try moving the
download address of the image.

Phillip


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