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The problem is that PPCBoot doesn't support the rsh method of booting kernels,
so we are stuck w/ tftpboot. We can't use that for our vxworks kernels.<br>
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Wolfgang Denk wrote:<br>
<blockquote type="cite"
cite="mid20030117213543.8261EC608E@atlas.denx.de">
<pre wrap="">In message <a class="moz-txt-link-rfc2396E" href="mailto:3E2873F9.5050107@jpl.nasa.gov"><3E2873F9.5050107@jpl.nasa.gov></a> you wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I am trying to load two boot loaders on to the flash at once. We want to
put the vxworks bootloader first, then jump to the beginning of the
ppcboot loader at a higher address in the flash when we need to. What
</pre>
</blockquote>
<pre wrap=""><!---->
This will not work. PPCBoot / U-Boot expect to find a "virgin"
system, i. e. to be started from the reset entry point.
I don't say it can't be done, but you have to understand exactly how
the initialization sequence works, and what already has been done by
your other boot loader.
I recommend to use just U-Boot, and dump the VxWorks bootloader.
U-Boot can boot VxWorks fine, too.
Best regards,
Wolfgang Denk
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<pre class="moz-signature" cols="$mailwrapcol">--
Timothy K. Canham
Jet Propulsion Laboratory
Pasadena, CA
<a class="moz-txt-link-abbreviated" href="mailto:Timothy.Canham@jpl.nasa.gov">Timothy.Canham@jpl.nasa.gov</a>
MDS Flight Software</pre>
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