If you've got ethernet support in the bootloader, you won't need iscsi there. It can be from the kernel you netboot. You would have a few options beyond that: network block device (NBD) or NFS root FS.
I've only worked with iscsi a bit (and it was painful to debug when not working properly) and NFS root (which I remember as being easy to setup).
What I'd research today would be NBD, though, as it seems promisingly easier that the 2 others, but that's just assumption on my part.
I've only worked with iscsi a bit (and it was painful to debug when not working properly) and NFS root (which I remember as being easy to setup).
What I'd research today would be NBD, though, as it seems promisingly easier that the 2 others, but that's just assumption on my part.