>>Well, sure, if someone tells me how to pass the config as an argument to 
>>kernel load on EC2.

I think you can put them in grub.cfg - that’s what the rump iso configuration 
does to tell the rump kernel where to find the json.cfg

Instead of this:

set timeout=0
menuentry "rumpkernel" {
        multiboot /boot/simple_hw_generic.xen ROOTFSCFG=/json.cfg
}

Maybe something like this:

set timeout=0
menuentry "rumpkernel" {
        multiboot /boot/simple_hw_generic.xen JSONCONFIG=" {,\n\t\"cmdline\": 
\"simple_hw_generic.xen\",\n\t\"hostname\": 
\"rumprun-simple_hw_generic.xen.iso\",\n},”
}

json has been escaped in the above example.


It should work for EC2 or any other platform.

as


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