> How is the kernel loaded? It doesn't appeaers to use tftp to get the
> kernel.
There is an in-flash kernel
> Apperantly the nfs share have to be named /nfsroot-x86 or
> /nfsroot-x86single if you boot it in singleuser mode by using 'set_params
> single' over the serial line.
yes
> How is the kernel loaded when it is booted from the disk? Does the
> firware "know" how to locate the kernel on the ext2-filesystem?
in flash-kernel has some booter hooks to locate and load /boot/vmlinux.gz (or
whatever arg you pass on the bfd command line)
> Would it be posible to boot an other OS for example freebsd? Can the
> bootloader handle this?
the bootloader (by default) loads /boot/vmlinux.gz on an ext2 filesystem. If
you can convice freeBSD (you can) to make a small ext2 filesystem and put a
gzipped, staticly compiled ELF executable called <ext2fs>/boot/vmlinux.gz, the
firmware will try to boot it.
> What are the ROM and EEPROM used for?
There are a number of EEPROMs on the system, so lets get terms straight :)
The Boot ROM (flash) holds the chipset initialization, boot kernel and related
code (BIOS).
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