From: Jordan Justen <jljusten@gmail.com>
To: Michael Brown <mbrown@fensystems.co.uk>
Cc: Stefan Hajnoczi <stefanha@gmail.com>, qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] OVMF, SeaBIOS & non-CSM based legacy boot
Date: Mon, 21 Mar 2011 14:31:24 -0700 [thread overview]
Message-ID: <AANLkTi=git0nJq_v0DY_JTV7KUGisLsGTeLq7Er3SiQg@mail.gmail.com> (raw)
In-Reply-To: <201103212117.55762.mbrown@fensystems.co.uk>
On Mon, Mar 21, 2011 at 14:17, Michael Brown <mbrown@fensystems.co.uk> wrote:
> On Monday 21 Mar 2011 21:06:24 Stefan Hajnoczi wrote:
>> On Mon, Mar 21, 2011 at 6:27 PM, Anthony Liguori <anthony@codemonkey.ws>
>> > Is there gPXE for UEFI yet?
>>
>> I have never tried it myself, but I think it should work. CCed
>> Michael Brown to check.
>
> Yes, iPXE for UEFI exists and works. Last tested by me about a week ago, on
> various IBM UEFI systems.
>
> Compared to a "legacy" BIOS network boot, you can't do anything very
> interesting with UEFI. Features such as iSCSI, FCoE, AoE, HTTP all work with
> a "legacy" BIOS but not with UEFI. A "legacy" BIOS network boot allows you to
> boot an operating system; a UEFI network boot only allows you to boot an EFI
> executable (which could be a second-stage OS loader).
Your input on network boot is much more valuable than mine. (I'm
certainly no expert here...)
But, for a UEFI system, loading a UEFI executable is equivalent to
starting the OS. Whether that executable is a second stage loader, or
contains the OS kernel, it up to the OS implementation.
-Jordan
next prev parent reply other threads:[~2011-03-21 21:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-21 18:14 [Qemu-devel] OVMF, SeaBIOS & non-CSM based legacy boot Jordan Justen
2011-03-21 18:27 ` Anthony Liguori
2011-03-21 21:06 ` Stefan Hajnoczi
2011-03-21 21:17 ` Michael Brown
2011-03-21 21:31 ` Jordan Justen [this message]
2011-03-21 21:40 ` Stefan Hajnoczi
2011-03-21 23:14 ` Michael Brown
2011-03-21 21:23 ` Jordan Justen
2011-03-22 8:00 ` Gleb Natapov
2011-03-22 19:28 ` Jordan Justen
2011-03-22 20:07 ` Gleb Natapov
2011-03-22 21:53 ` Jordan Justen
2011-03-23 12:36 ` Gleb Natapov
2011-03-23 22:32 ` Jordan Justen
2011-03-24 11:53 ` Gleb Natapov
2011-03-24 16:46 ` Jordan Justen
2011-03-24 18:36 ` Gleb Natapov
2011-03-24 12:27 ` Michal Suchanek
2011-03-24 13:44 ` Gleb Natapov
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