From owner-freebsd-current@freebsd.org Sun Jan 20 09:05:26 2019 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DFE4E14ABA8C for ; Sun, 20 Jan 2019 09:05:26 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D603B8D188; Sun, 20 Jan 2019 09:05:25 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id x0K95B6x015625 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 20 Jan 2019 11:05:14 +0200 (EET) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua x0K95B6x015625 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id x0K959Na015586; Sun, 20 Jan 2019 11:05:09 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sun, 20 Jan 2019 11:05:09 +0200 From: Konstantin Belousov To: Lev Serebryakov Cc: Rebecca Cran , Emmanuel Vadot , Warner Losh , FreeBSD Current , "Rodney W. Grimes" Subject: Re: GPT boot has less features than legacy MBR-based one (Was: UEFI, loader.efi and /boot.config) Message-ID: <20190120090508.GE26174@kib.kiev.ua> References: <912985968.20190119125228@serebryakov.spb.ru> <1951151017.20190119235425@serebryakov.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1951151017.20190119235425@serebryakov.spb.ru> User-Agent: Mutt/1.11.2 (2019-01-07) X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FROM, NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on tom.home X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jan 2019 09:05:27 -0000 On Sat, Jan 19, 2019 at 11:54:25PM +0300, Lev Serebryakov wrote: > Hello Rebecca, > > Saturday, January 19, 2019, 6:06:52 PM, you wrote: > > > Ok, I've checked my desktop Asus Z170-A, but it is graphical and I could > > not find or understand anything in this home-rown UI with crazy-fast mouse. > > On ASUS systems you normally press F8 during POST to bring up the boot menu, and F11 on Supermicro systems. > Yes, I know. But what should I do next? There is no "Set UEFI Boot Var" > item in it. You could select different physical drives (but not partitions > of the drives) and network cards (if PXE is enabled), and, sometimes, "EFI > Shell" which is not documented anywhere, and it doesn't work always. > > When I google "ASUS EFI Shell", for example, all results says about > preparing USB stick with EFI shell and such, not about commands and > variables of EFI shell. > > I don't say, that it is impossible, I only could not find good (or any) > documentation. The specification for EFI Shell is available together with other UEFI specifications, at http://www.uefi.org/specifications.