From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55798) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1edz2X-0001lG-I6 for guix-patches@gnu.org; Tue, 23 Jan 2018 08:55:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1edz2U-0000j9-9J for guix-patches@gnu.org; Tue, 23 Jan 2018 08:55:05 -0500 Received: from debbugs.gnu.org ([208.118.235.43]:59530) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1edz2U-0000ip-5L for guix-patches@gnu.org; Tue, 23 Jan 2018 08:55:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1edz2T-0005jc-LO for guix-patches@gnu.org; Tue, 23 Jan 2018 08:55:01 -0500 Subject: [bug#30216] [WIP] system: Add ARM installer; services: agetty: Make tty optional Resent-Message-ID: Date: Tue, 23 Jan 2018 14:54:52 +0100 From: Danny Milosavljevic Message-ID: <20180123145452.57b9e1e6@scratchpost.org> In-Reply-To: <87lggo7qjl.fsf@gnu.org> References: <20180122220011.7896-1-dannym@scratchpost.org> <87lggo7qjl.fsf@gnu.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+kyle=kyleam.com@gnu.org Sender: "Guix-patches" To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 30216@debbugs.gnu.org Hi Ludo, On Tue, 23 Jan 2018 12:39:10 +0100 ludo@gnu.org (Ludovic Court=C3=A8s) wrote: > What would it mean to have an =E2=80=9CARM=E2=80=9D installer? I=E2=80= =99d expect these things > to be board-specific, no? I hope it's not that board-specific. There are minimal differences but many ARM boards use the same Linux kernel (with the same config). This was one of the motivation to create u-boot: u-boot is like a board-specific mini-Linux kernel. The Linux kernel that u-boot then loads later is not board-specific. In the past, board vendors kept putting huge board configuration tables ins= ide Linux until Linus put a stop to it. Nowadays it should not be the case anymore that Linux is board-specific. Therefore, I think it would be preferrable in the long run if Hydra didn't build 1000 different 1 GB images for different boards where the only different part is u-boot. This is preparatory work which is very much work-in-progress, mostly as a discussion basis. There's a thread about it on guix-devel, "Porting GuixSD to ARM article.". So long story short, about 99% of the image this arm-installer generates will work and be identical for almost every ARMv7 board, except for u-boot (u-boot is kinda important, though).