From owner-freebsd-current@freebsd.org Thu Jul 5 18:18:08 2018 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 008CD10448AB for ; Thu, 5 Jul 2018 18:18:08 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4B34F8E111 for ; Thu, 5 Jul 2018 18:18:07 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (localhost [127.0.0.1]) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3) with ESMTP id w65II3HH048905; Thu, 5 Jul 2018 11:18:03 -0700 (PDT) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: (from freebsd-rwg@localhost) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3/Submit) id w65II3mw048904; Thu, 5 Jul 2018 11:18:03 -0700 (PDT) (envelope-from freebsd-rwg) From: "Rodney W. Grimes" Message-Id: <201807051818.w65II3mw048904@pdx.rh.CN85.dnsmgr.net> Subject: Re: EFI booting from external USB pen drive In-Reply-To: To: "Bjoern A. Zeeb" Date: Thu, 5 Jul 2018 11:18:03 -0700 (PDT) CC: Warner Losh , FreeBSD Current X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 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: Thu, 05 Jul 2018 18:18:08 -0000 [ Charset UTF-8 unsupported, converting... ] > On 5 Jul 2018, at 17:19, Warner Losh wrote: > > > FAT12 isn't good for UEFI. Use FAT16 or FAT32. > > We use it for the default image we built and the wiki suggests it as > well at https://wiki.freebsd.org/UEFI#CD.2FDVD_Boot_under_UEFI IIRC FreeBSD recently cnahged to FAT16 or 32 on these as the size got pushed up to be larger than what FAT12 can access. > I wonder where this ?default? came from? > > /bz -- Rod Grimes rgrimes@freebsd.org