Date: Sat, 17 Dec 2016 22:59:05 +1100 (EST) From: Ian Smith <smithi@nimnet.asn.au> To: Stefan Bethke <stb@lassitu.de> Cc: =?ISO-8859-1?Q?Fernando_Herrero_Carr=F3n?= <elferdo@gmail.com>, freebsd-stable <freebsd-stable@freebsd.org>, Slawa Olhovchenkov <slw@zxy.spb.ru> Subject: Re: Upgrading boot from GPT(BIOS) to GPT(UEFI) Message-ID: <20161217225307.O26979@sola.nimnet.asn.au> In-Reply-To: <8C7E8D1A-ABAF-41D0-8A8A-B1CF20FE0393@lassitu.de> References: <CAMwkeZznenmN1RkUaKZ7i12F0FA185ZH%2BcHPXUp56S8j3SrubQ@mail.gmail.com> <20161217170412.V26979@sola.nimnet.asn.au> <8C7E8D1A-ABAF-41D0-8A8A-B1CF20FE0393@lassitu.de>
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On Sat, 17 Dec 2016 10:49:48 +0100, Stefan Bethke wrote: > > Am 17.12.2016 um 07:12 schrieb Ian Smith <smithi@nimnet.asn.au>: > > > > On Fri, 16 Dec 2016 18:08:34 +0100, Fernando Herrero Carrón wrote: > >> My only reason for wanting to boot with UEFI is faster boot, > >> everything is working fine otherwise. > > > > I'm skeptical that UEFI boot would be any or noticeably faster than via > > BIOS, but am interested in hearing of any experiences regarding that. > > In a very quick test with VirtualBox with 10.3-Release, ZFS, booting > with BIOS and autoboot_delay=0, it takes 15 seconds to display > ˙˙Booting˙˙˙˙. > > With 11.0-R and BIOS it takes about 12. > > With 11.0-R and EFI enabled, it takes less than 3 seconds. > > On real hardware other factors will likely diminish the difference. Thanks for that, Stefan. I only have older kit here, so was curious. And Slawa Olhovchenkov wrote: > Some BIOS start with very long try UEFI boot atempt and try legacy > boot only all of that fails. > > I.e. this is not speedup FreeBSD boot, this is speedup _start_ of > FreeBSD boot for some BIOS. That makes good sense to me. cheers, Ian
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