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I'll do my best to help but it sounds like I barely got further than you. I have two Linux systems I have been playing with this on. An Ubuntu 10.04 laptop and a Fedora Core 13 laptop.
I'm like you, I wanted to try the latest and greatest version (20100628) but ran into problems.
I gave up on the toolchain build. I tried 3 different tarballs with 3 different versions of GCC and it failed every time.
Here's what worked for me to at least build the kernel zImage:
Download and install the prebuilt toolchain. Be sure to use their exact command to untar the toolchain to preserve permissions and links and such:
From
http://www.nioswiki.com/operatingsystems/uclinux/binarytoolchain:
sudo tar jxf nios2gcc-20080203.tar.bz2 -C /
Then I un-tarred the 20090730 version and changed into that top level directory and ran
./checkout
I then followed the directions on
http://www.nioswiki.com/operatingsystems/uclinux/uclinuxdist and got a "zImage" output which I believe is the kernel image. Trying to test it now but having some SDRam issues.
I can't wait until I get my hardware shaken out and can move to Linux completely. The NIOS Eclipse tools I am not liking at all. .
David
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Now, this signal problem:
[/home/thor/Scrivania/nios2-linux/linux-2.6/include/linux/jiffies.h:257:31: warning: "nasys_clock_freq" is not defined
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