On 1/2/2013 02:30, Robin Smidsrød wrote:
On 02.01.2013 01:23, Shao Miller wrote:
On 1/1/2013 15:18, Robin Smidsrød wrote:
Anyone seen this before?
https://dl.dropbox.com/u/354628/iPXE%20sanboot%20issue%202013-01-01.png
I'm pretty sure that this is from VirtualBox' BIOS. Does it give the
same error message when you boot the DVD without any iPXE involvement?
Booting the Windows 7 DVD inside vbox directly works as intended. No
error messages appear.
ETDump can only be expected to give useful results if the CD/DVD was
actually booted.
Very good point. I guess I'll have to put it inside an ISO file and boot
_that_ to actually find the identifiers I'm looking for...
It can be handy to boot a minimal ISOLINUX .ISO with chain.c32 to chain
either the HDD or a floppy; that way the El Torito emulation is started
(for ETDump, ETTool, ElTorito.sys, etc.) but you needn't bother with
more than a one-time mkisofs invocation.
Anyway, since it's working without iPXE, perhaps the iPXE INT 0x13 hook
has a bug where the AH register is being incremented. AH=0x4D means
"Return Boot Catalog," but if it was an accidental increment, it
might've been AH=0x4C, which is "Initiate Disk Emulation & Boot," which
makes a whole lot of sense for the scenario you've described.
- Shao Miller
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