> thank you for the answer.
> I'm booting over HBC. How can I change the command line root= option? I
> just klick on the kernel (boot.elf) and haven't changed the XML file...
> Is it in the xml file, or does it happen while the kernel is compiled?
The command line is embedded in the kernel ELF.
> Any Idea how to fix it? Would be realy great. Btw. compiling on the Wii
> works realy great even with just 16 MB Ram free^^.
The command line is currently specified in the device tree source file.
To change it, edit the arch/powerpc/boot/dts/wii.dts file and look for the 'bootargs' property within the 'chosen' node.
PS: Note that if you boot the kernel from HBC as a normal application (not via the Load BootMii button in the home menu) you will be running the kernel under Nintendo IOS, which has some limitations. For example, in that environment the WiFi hardware cannot be accessed and thus doesn't work.
See "Extra features of MIKE p5 when running under mini (vs IOS)" in the article http://www.gc-linux.org/wiki/MINI:KernelPreviewFive for the options that are _not_ available when running the kernel under Nintendo IOS.