From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1egYrj-0003Uh-V7 for mharc-grub-devel@gnu.org; Tue, 30 Jan 2018 11:34:35 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45687) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1egYrf-0003UE-C2 for grub-devel@gnu.org; Tue, 30 Jan 2018 11:34:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1egYrc-0007rQ-8T for grub-devel@gnu.org; Tue, 30 Jan 2018 11:34:31 -0500 Received: from mout.gmx.net ([212.227.15.19]:65083) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1egYrb-0007qp-U2 for grub-devel@gnu.org; Tue, 30 Jan 2018 11:34:28 -0500 Received: from scdbackup.webframe.org ([79.222.38.208]) by mail.gmx.com (mrgmx001 [212.227.17.190]) with ESMTPSA (Nemesis) id 0LpbJm-1fCqbn08IQ-00fRhi; Tue, 30 Jan 2018 17:34:25 +0100 Date: Tue, 30 Jan 2018 17:33:18 +0100 From: "Thomas Schmitt" To: grub-devel@gnu.org Subject: Re: A thread on grub-bug could need attention Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Cc: michel@bouissou.net References: In-Reply-To: Message-Id: <1484785757554573284@scdbackup.webframe.org> X-Provags-ID: V03:K0:snFvN31Qhp9xBQP9tYVLGS0ZzqP7bgJ4JX+pQIoaKaZDNaMREL+ f+xbwAjXMkpvOdL/g5lq31zvbz7n+9p/AdMkucm7qXpJ+NX5dkvIYSQ87BqZRy3/Ah2rajX aD0MzCi5zuNo+WApX8D/XAJjgegcJxw1Ubde7ecV6BXFQX/tt9teiGau3gx5z3ZPrDXq6s5 ZXPsfjTy2lfUdSvRXF82g== X-UI-Out-Filterresults: notjunk:1;V01:K0:tHFEidJb7Cg=:AqL8MVV6Ctr+CVcmPnkO3G QjBuuwbHialngDI91R9k7XEFw6wkW+5sdKz32JuQm7ZKXG9krceSn8cNejvWm6QsAQ2meTfOn ag3qK4QUJUrxfWOELu+e7VnQR1H8xddpguyndanGSBDqwai02roj7TJoFUB3Xn9k4aeqbyxu9 DnV/bFbycWTvQ1IuEqXybQ+Ff/zfHBKDeFdtdNBhsEjDZJBIaPWrNdVDQazHmh9YfNxNCq77K Fx6y4Tvz9UExVurXTbUsZoyxoBYZ6ujj7wyaucRVptOfRSs/JFDQne3cM3l5WtzC+D2uQnGdr zakIIypbyGv9q1P1SntSksxSOV/oKArMchzSc/jRySo87kGQq7HBya8VJQztqDZ3n6J6lhGiN JaQLdxQLk/m9Pg0qRPb3HHHN/G96+Ry/YzKlTtUO5tAed6Jyuz9MJQxzWYATQHc0tLZGjP2kZ 681J5QBe8jXafFw6N6ic1YTfwOTImEhq+CAbUe7zNEUshbsC9mVzrlo/+XbHCWY5uV5fG4Dn9 xVfYW9czRo914BXcY1/Hgcafj1B9S/C3yhbTs28t5u0zIZPr4fzbhUFUaYF9torWT71aSguZt krWpuyTYJUCjHQFxgQFaAQWhzi6fA5Ti6urIrX0aIpqG+tLX8bXZad1B8x1uzZupkOYTHkwa2 4IsBiRpa7dqNvjgUjBiUM+WxFELYXHtpIWtNqf8ms0q9DxAJ8tCe+z3T7z18zO9+gTChO3LRL ZJyxh2tvqlgEHYmYmcyOWX3RA64mIjvOrYZ3Vo5BbQc6/MXWyBt7Ed00jUR4m4K7ovIVZyvAm R9R/KT7uzwIb2uHnmrRi2UNNl7whuXaIv26u5IbCuxUc4QHSIw= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 212.227.15.19 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Jan 2018 16:34:34 -0000 Hi, I wrote: > > Does this mean that the decisive trick is to use GPT with EFI partition > > instead of a MBR partition of type 0xEF ? Michel Bouissou wrote: > So might this machine boot only from GPT disks ? Well, then it would'tn > boot a Knoppix ISO image stick. But it does... Yes, i proposed to Klaus Knopper to deviate from Matthew J. Garrett's layout which is used by Fedora, Debian, and others. So Knoppix 8.1 has the EFI partition appended outside the ISO 9660 filesystem range, with a neat MBR partition table without nested partitions. No GPT gets written, because it would be invalid. Nevertheless, Knoppix uses SYSLINUX which could be less dependent on a neat GPT than GRUB2 could be ... theoretically guessing ... > I have installed a Manjaro with grub onto a blank USB stick, in EFI > mode, and it would boot perfectly on other machines, but not on affected > machine. It would be interesting to compare the particular actions of the installation with the procedure proposed by Daniel Kiper which works. > I could boot no > standard Linux USB install stick made from an ISO image on this machine, > besides Knoppix or Tails. Oh. I forgot your success with Tails. My mailbox says i inspected 3.3 and that it was BIOS-only with ISOLINUX as bootloader. Just to be sure: http://dl.amnesia.boum.org/tails/stable/tails-amd64-3.5/tails-amd64-3.5.iso No EFI partition at all. And no GRUB. This corresponds to the "mac" ISOs of Debian, which are BIOS-only because some MacIntoshs are said to take offense on the EFI equipment. E.g. this 293 MB image: https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-mac-9.3.0-amd64-netinst.iso > > grub-mkrescue -o output.iso ./minimal > I will try to test it tonight on the affected machine and let you know. I am curious what will happen. Have a nice day :) Thomas