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Altera_Forum's avatar
Altera_Forum
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16 years ago

Linux, U-Boot, and Root File Systems

I'm working with a Nios II design with an MMU, on a Nios II Development Kit, Cyclone II Edition board (EP2C35). I'm trying to figure out how to get to a system that boots with some sort of root...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

zlib: zlib-devel was the problem. lzo-devel is also required.

I also realized I was using the wrong branch of the U-Boot repository. Thats why the bootargs were not being passed. When I switched to the "nios2" branch, bootargs worked.

Now that I can get kernel arguments passed in, my life should be easier.

Next I'm trying to figure out what to do with the rootfs.jffs2 file.

I think I need to:
  • Compile MTDPARTS and JFFS2 support into U-Boot

  • Define a Partition Table in U-Boot

  • Define a matching Linux partition table in arch/nios2/kernel/config.c after the line "static struct mtd_partition nios2_partitions
  • Burn rootfs.jffs2 to flash
Anyone see any flaws (or holes) in my plan?