29 Apr
2008
29 Apr
'08
10:47 a.m.
On Tue, 2008-04-29 at 15:17 +0100, Daniel P. Berrange wrote:
Even if the -drive parameter is supported, it should still pass the -boot a/c/d/n parameter in.
Why? And how would you boot from a virtio device this way?
It is needed for PXE boot at least, and IMHO, QEMU should treat 'boot c' as if 'boot=on' were set for the first -drive parameter for back compat.
It was probably done this way because for normal IDE drivers, "-boot c" is a different boot path than "boot=on" - i.e. the former goes through the normal BIOS boot path, but "boot=on" uses the extboot PCI option ROM hack. Probably could just use extboot for "-boot c" when the drive in question isn't an IDE drive, though ... Cheers, Mark.