From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thomas Schmitt" Subject: Re: ISO installer image: GPT versus MBR partitions Date: Mon, 22 Apr 2019 15:11:18 +0200 Message-ID: <27757672699978894576@scdbackup.webframe.org> References: <21744672748775969334@scdbackup.webframe.org> Content-Type: text/plain; charset="utf-8" Return-path: Received: from eggs.gnu.org ([209.51.188.92]:59193) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hIYh0-0005UU-MJ for guix-devel@gnu.org; Mon, 22 Apr 2019 09:09:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hIYgz-0002iU-8a for guix-devel@gnu.org; Mon, 22 Apr 2019 09:09:06 -0400 In-Reply-To: <21744672748775969334@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: bug-xorriso@gnu.org Cc: guix-devel@gnu.org Hi, Ady Ady gave me a hint about why the EFI partition in Guix 0.16.0 ISO has 1.4 MB of size, despite grub-mkrescue asks mformat for 2.8 MB. Obviously Guix uses mtools 4.0.21 (image OEM-ID "MTOO4021") which is one version before this bug fix: "Fixed -f flag for mformat (size is KBytes, rather than sectors)" http://lists.gnu.org/archive/html/info-gnu/2018-12/msg00000.html (Actually this size is quite some waste. Even 1.4 MB is generously oversized for the three directories and one or two boot*.efi.) Have a nice day :) Thomas