From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marius Bakke Subject: bug#27732: Changing display manager can render system unbootable Date: Mon, 17 Jul 2017 12:09:54 +0200 Message-ID: <874lub74st.fsf@fastmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:58349) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dX2zb-0008Ey-Sm for bug-guix@gnu.org; Mon, 17 Jul 2017 06:11:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dX2zW-0005Lx-Qb for bug-guix@gnu.org; Mon, 17 Jul 2017 06:11:07 -0400 Received: from debbugs.gnu.org ([208.118.235.43]:40587) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dX2zW-0005Lq-Mo for bug-guix@gnu.org; Mon, 17 Jul 2017 06:11:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dX2zW-0006Bm-EC for bug-guix@gnu.org; Mon, 17 Jul 2017 06:11:02 -0400 Sender: "Debbugs-submit" Resent-Message-ID: Received: from eggs.gnu.org ([2001:4830:134:3::10]:58108) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dX2ya-0007wY-05 for bug-guix@gnu.org; Mon, 17 Jul 2017 06:10:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dX2yU-0004kK-V4 for bug-guix@gnu.org; Mon, 17 Jul 2017 06:10:03 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:60295) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dX2yU-0004je-EA for bug-guix@gnu.org; Mon, 17 Jul 2017 06:09:58 -0400 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id B25DF20286 for ; Mon, 17 Jul 2017 06:09:56 -0400 (EDT) Received: from localhost (unknown [92.62.32.184]) by mail.messagingengine.com (Postfix) with ESMTPA id 4429324288 for ; Mon, 17 Jul 2017 06:09:56 -0400 (EDT) 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: 27732@debbugs.gnu.org --=-=-= Content-Type: text/plain Hello! When changing display manager in the system configuration and invoking `guix system reconfigure`, the existing desktop environment will be killed. If you invoked the command from within said desktop environment, the reconfigure command will be forcefully terminated. If you're unlucky, this might happen during `grub-install`. After logging in on a console and rebooting, this is what I got: --8<---------------cut here---------------start------------->8--- Welcome to GRUB! Attempting to decrypt master key... Enter passphrase for hd1,gpt2 (): Slot 0 opened error: file `/boot/grub/x86_64-efi/normal.mod' not found. Entering rescue mode... grub rescue> --8<---------------cut here---------------end--------------->8--- It can be recovered by booting by copying /boot/grub/x86_64-efi/* from a healthy system to the partially installed one. I'm not sure how to mitigate this, since the DE restart is arguably a feature. A command analogous to `nixos-rebuild boot` might be of aid for those of us aware of this problem. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEu7At3yzq9qgNHeZDoqBt8qM6VPoFAllsjPIACgkQoqBt8qM6 VPrmFwgA1T481t5+pT5Q9+KWPtb2TQocpxZuJPx7fCxaRNd3HfVyh/R/kJHnAtRA HlmPQCEJ7ykUq5ehbM4nivQjyZ/NlDqFb0j0uP5I0cFpHB4DggMAD4XS6ti1fRHf lHa+7R3ewF7vtosh2GdjHHLo1IQM0lOQMAusFJ15C92Bl3yBdRk/1HOwIp7IuoS1 YeSfTWXo7FEP3tUBDj7KK6wvS9lsyCDQPlfrMIBvNqWytZ1Oa06nEJ9Eck3ZquJh gC9c5+wDnHKRt5up6dqy5ZdTVj77ibcwAa1rMtyzpNQEmR+YOnjgcPvOFLnkiQ4Z oHl0GU5GeHuPOi+QqIKB2u/eNpdM2Q== =s1zA -----END PGP SIGNATURE----- --=-=-=--