Hi,
While trying to test pxe booting, I noticed that creating a pxe image larger
than around 100k causes the system hard-hang after control is transferred to
pxegrub. I narrowed it down to an unknown problem in
grub_reed_solomon_recover (called from startup.S). Unconditionally jumping
over the call allows the system to continue to proceed to the menu. So, if
you're trying to build a pxe image with a lot of modules, and you get a hard
hang, try this:
=== modified file 'grub-core/kern/i386/pc/startup.S'
--- grub-core/kern/i386/pc/startup.S 2010-12-24 06:29:28 +0000
+++ grub-core/kern/i386/pc/startup.S 2010-12-27 04:26:25 +0000
@@ -147,6 +147,8 @@
incl %eax
call grub_gate_a20
+ jmp post_reed_solomon
+
movl EXT_C(grub_compressed_size), %edx
addl $(GRUB_KERNEL_MACHINE_RAW_SIZE -
GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART), %edx
movl reed_solomon_redundancy, %ecx
--S
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