Howdy,

Please pardon the trip down memory lane, but I'm running into a
problem booting multiboot from non-pxegrub boot loaders and could use
some help.

When using gGPXE (the new Etherboot) to boot multiboot on a Sun X4200
M1, I get the following message:

remapping page at 0x1000000
panic: remapping unsupported in booter

The gPXE/multiboot combination does work on a Dell 2950, a Rackable,
and a VMware ESX VM, however.

I get the same error when booting multiboot from Linux's kexec()
system call on a Dell 2950.

>From the source
(http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/deleted_files/usr/src/psm/stand/boot/i386/common/memory.c#160):

                                /*
                                 * If we are already mapped, panic!
                                 * This should not happen under the
                                 * current memory allocation scheme
                                 * where physmem is either mapped 1:1
                                 * or mapped above kernelbase.
                                 */

Could someone who knows the (old) boot process a little better please
help me understand what the memory mapping requirements for multiboot
are?

Thanks,

Clay
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