From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Subject: bug#33639: ISO installer image is broken on i686 Date: Thu, 06 Dec 2018 11:34:55 +0100 Message-ID: <874lbrkkog.fsf@gnu.org> References: <87d0qfwmih.fsf@gnu.org> <87efavm8b3.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:34335) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gUr3O-0001gH-W9 for bug-guix@gnu.org; Thu, 06 Dec 2018 05:38:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gUr0k-000847-Qk for bug-guix@gnu.org; Thu, 06 Dec 2018 05:36:03 -0500 Received: from debbugs.gnu.org ([208.118.235.43]:58961) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gUr0k-00083Z-MG for bug-guix@gnu.org; Thu, 06 Dec 2018 05:36:02 -0500 Sender: "Debbugs-submit" Resent-Message-ID: In-Reply-To: <87efavm8b3.fsf@gnu.org> ("Ludovic \=\?utf-8\?Q\?Court\=C3\=A8s\=22'\?\= \=\?utf-8\?Q\?s\?\= message of "Thu, 06 Dec 2018 08:19:12 +0100") List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: 33639@debbugs.gnu.org, bug-xorriso@gnu.org Dear Xorriso hackers, While building an ISO for i686, running Xorriso 1.5.0 built for i686 (actually =E2=80=98grub-mkrescue=E2=80=99, but that=E2=80=99s just a wrappe= r around Xorriso) in qemu-system-i386, we end up with an ISO image containing files that lead to I/O errors (=E2=80=9Cattempt to access beyond end of device=E2=80=9D): --8<---------------cut here---------------start------------->8--- ludo@ribbon ~/src/guix$ sudo losetup /dev/loop0 /gnu/store/1yanxg3cz5wi6vhp= vhipxvmjwm201fbm-image.iso ludo@ribbon ~/src/guix$ sudo mount -t iso9660 /dev/loop /mnt/disk/ mount: /mnt/disk: WARNING: device write-protected, mounted read-only. ludo@ribbon ~/src/guix$ cat < /mnt/disk/var/guix/db/db.sqlite > /dev/null cat: -: Eraro de en-eligo ludo@ribbon ~/src/guix$ dmesg |tail [ 41.186408] shepherd[1]: Service guix-daemon has been started. [ 45.725418] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready [ 45.933911] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready [ 49.496112] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow= Control: None [ 49.496165] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s31f6: link becomes ready [ 203.358136] ISO 9660 Extensions: RRIP_1991A [ 215.199352] attempt to access beyond end of device [ 215.199357] loop0: rw=3D524288, want=3D1903876, limit=3D1899264 [ 215.199362] attempt to access beyond end of device [ 215.199363] loop0: rw=3D0, want=3D1903532, limit=3D1899264 --8<---------------cut here---------------end--------------->8--- The output of Xorriso and the kernel when it builds the image looks good. (More info at .) Using the exact same build process for x86_64 leads to valid ISO images. Does that ring a bell or would you have advice to further debug it? Thanks, Ludo=E2=80=99.