From mboxrd@z Thu Jan 1 00:00:00 1970 From: "pelzflorian (Florian Pelz)" Subject: Re: ISO installer image: GPT versus MBR partitions Date: Fri, 19 Apr 2019 11:39:46 +0200 Message-ID: <20190419093946.ulyjiaeodukk4rru@pelzflorian.localdomain> References: <20190419080341.m47hhg54lxfhan4r@pelzflorian.localdomain> <2471667296595514572@scdbackup.webframe.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:46002) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hHQEa-0006WM-3y for guix-devel@gnu.org; Fri, 19 Apr 2019 05:55:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hHPzq-0001aP-Mb for guix-devel@gnu.org; Fri, 19 Apr 2019 05:39:51 -0400 Content-Disposition: inline In-Reply-To: <2471667296595514572@scdbackup.webframe.org> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Thomas Schmitt Cc: bug-xorriso@gnu.org, guix-devel@gnu.org On Fri, Apr 19, 2019 at 11:01:51AM +0200, Thomas Schmitt wrote: > Hi, >=20 > i wrote: > > > this is the xorriso run for producing a layout like "isohybrid --ue= fi" >=20 > Florian Pelz wrote: > > No, it still gets stuck. :( >=20 > Then it must be something inside the EFI partition which makes the > Macbook firmware dismiss the partition for booting. >=20 >=20 For x86_64 iso images, the Macbook does *not dismiss*. It gets stuck in the lightgray startup screen forever without showing a menu with the drives to boot from, except for the Debian ISO image, for which a menu is shown with an =BBEFI partition=AB that runs a bootloader when chosen. > Can you get EFI to confess that the x86_64 USB stick indeed has a > recognizable EFI partition ? >=20 >=20 I do not currently know how. Maybe by changing the bootx64.efi on its EFI partition? > > I could try burning a DVD and attempt to boot from it. >=20 > On DVD the El Torito boot equipment should lead EFI to the same partiti= on > image as the partition table should do on USB stick. > But a try cannot harm. >=20 > Will try now. > For now i say thanks for three found bugs in my own software, during > this discussion: >=20 I am happy something good came of it. Regards, Florian