From mboxrd@z Thu Jan 1 00:00:00 1970 From: Danny Milosavljevic Subject: Re: GRUB and installer invisible on serial console Date: Sat, 21 Dec 2019 20:00:40 +0100 Message-ID: <20191221200040.16d49dc3@scratchpost.org> References: <87lfr5pou4.fsf@elephly.net> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/rCOom4d_io9+3quxD/ODfX9"; protocol="application/pgp-signature"; micalg=pgp-sha256 Return-path: Received: from eggs.gnu.org ([2001:470:142:3::10]:41773) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iijzd-0002Fy-EV for guix-devel@gnu.org; Sat, 21 Dec 2019 14:00:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iijzb-0005cu-Pz for guix-devel@gnu.org; Sat, 21 Dec 2019 14:00:48 -0500 Received: from dd26836.kasserver.com ([85.13.145.193]:48860) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iijzb-0005Q7-DI for guix-devel@gnu.org; Sat, 21 Dec 2019 14:00:47 -0500 In-Reply-To: <87lfr5pou4.fsf@elephly.net> 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: Ricardo Wurmus Cc: guix-devel@gnu.org --Sig_/rCOom4d_io9+3quxD/ODfX9 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Ricardo, > Our GRUB is using fancy graphics, so I wonder if that means that it has > switched to a mode that I simply can=E2=80=99t see over my serial connect= ion. Yeah, gnu/bootloader.scm has "gfxterm" as default for the terminal output. That means that serial will not be used. Valid outputs are: '(console serial serial_0 serial_1 serial_2 serial_3 gfxterm vga_text mda_text morse spkmodem) see gnu/bootloader/grub.scm . Multiple outputs are possible. It's possible that serial-unit (a natural number (the com port) between 0 a= nd 3) and serial-speed (a natural number) also need to be set up in order to be a= ble to use "serial". It's possible that there would have been an automatic UEFI console handover in grub-efi but I guess it's being overridden by our setting. Try having our bootloader config generator not emit "terminal_output" at all (edit gnu/bootloader/grub.scm, search for "terminal_output" and comment that part out). It would be interesting whether it will automatically use a reasonable default then. --Sig_/rCOom4d_io9+3quxD/ODfX9 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEds7GsXJ0tGXALbPZ5xo1VCwwuqUFAl3+a9gACgkQ5xo1VCww uqW+3Qf7BpF26FhOm1oXjE1cDfm12xBgnuuP0un2DjssJB1h+OTwiwW1UK6Bm2cS 9fKD0JR/CxrxjYCpoztwY7ffhYP//zl00MuPLDuQ8NMMhyZhBNImp5LoBtX291tC PuqydsIhtKwMQWMxpxJxIOfBImYWYLfFlTq23ik1B5hckKghHE2hxO9wJknVomyZ cMGOgRSHfXy39ETuub7X485KreiZM3i1cJTLev/psZmFCBqk0wlBYkDsrno7abIH 8w+34EXPf+9pz4aK7YWm2TGU3NS2OmSWWSbGXaAUzXwU9kFHmn/Jsp+JMGv/ICEq QLZeddRqsgsPt8ReSXCo7Ik8KSAOOw== =Sql1 -----END PGP SIGNATURE----- --Sig_/rCOom4d_io9+3quxD/ODfX9--