On Thursday 25 February 2010 12:58:13 pm Chris wrote: > On Thu, Feb 25, 2010 at 8:06 AM, John Baldwin <jhb_at_freebsd.org> wrote: > > On Wednesday 24 February 2010 10:12:25 pm Chris wrote: > >> So it sounds like somehow my system is trying to use the old boot2 > >> method when I don't hit F12. I'm guessing the difference is due to how > >> the hard drive is getting presented to the boot loader by the BIOS. > >> How can I get rid of the legacy boot system and use only the ZFS > >> bootloader? > > > > Does F12 enable PXE booting or some such? > > The only options I have when I press F12 are to either boot from my > hard drive or to boot from my optical drive. Is there > any way to more verbosely see what is happening at the bootloader level? No. So it sounds like F12 pops up some sort of boot menu, and that in the broken case you just let the machine boot off of the disk normally? > >I can't really tell from your e-mails exactly what the difference in the two cases are. The BIOS doesn't > > really tell the boot code much of anything. It just loads the first sector of > > the disk into RAM at 0x7c00, puts the BIOS drive number (typically 0x80) into > > the %dl register, and starts executing the code it just loaded. Unless > > hitting F12 is somehow booting from a different physical drive (and thus > > either loading different boot code or passing a different value of %dl to > > another copy of the same boot code), it shouldn't make any difference. > > > > -- > > John Baldwin > > > -- John BaldwinReceived on Thu Feb 25 2010 - 19:27:51 UTC
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