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Thu, 2 Jul 2026 07:45:07 -0400 (EDT) Received: by mbp.qyliss.net (Postfix, from userid 1000) id 13664845EF83; Thu, 02 Jul 2026 13:45:05 +0200 (CEST) From: Alyssa Ross To: colby@colbyt.com Subject: Re: [PATCH 5/6] installer: suppress boot console status noise In-Reply-To: References: <528a34214942d7b316fde5510da03ef91eb9d2cd.1782409229.git.colby@colbyt.com> <87cxxdfjfy.fsf@alyssa.is> Date: Thu, 02 Jul 2026 13:44:59 +0200 Message-ID: <877bndy5s4.fsf@alyssa.is> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Message-ID-Hash: DEZNKQRVGC7GKTD7IDPFFZSBNHDQITJY X-Message-ID-Hash: DEZNKQRVGC7GKTD7IDPFFZSBNHDQITJY X-MailFrom: hi@alyssa.is X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-devel.spectrum-os.org-0; header-match-devel.spectrum-os.org-1; header-match-devel.spectrum-os.org-2; header-match-devel.spectrum-os.org-3; header-match-devel.spectrum-os.org-4; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: devel@spectrum-os.org X-Mailman-Version: 3.3.10 Precedence: list List-Id: Patches and low-level development discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable colby@colbyt.com writes: > That was just me reading the bugs page and taking a crack at https://pad.= lassul.us/s/mDfFPvHjA > > "Make flicker-free boot work more reliably in the installer > systemd messages are sometimes displayed in the installer in between Plym= outh exiting and cage starting. Reproduce some of these messages, and figur= e out what we need to set to disable them." > > It seemed to me that was your answer! But I could be wrong, I'm very new= here. No, that's exactly the right thing to have done! I was just wondering about the detail =E2=80=94 did you try larger log levels and find them insufficient? Did you have to use all of these at once to achieve flicker free boot? I just want to make sure we understand why we're adding each line! > On Friday, June 26th, 2026 at 7:46 AM, Alyssa Ross wrote: > >> colbyt writes: >>=20 >> > The installer can show systemd or udev messages between Plymouth exiti= ng >> > and cage starting, which breaks the intended flicker-free graphical >> > handoff. >> > >> > Add quiet/systemd/udev kernel parameters to suppress status output and >> > stop forcing systemd.journald.forward_to_console in the QEMU runner. >> > This keeps the installer VM aligned with the quiet graphical boot path. >> > >> > Signed-off-by: colbyt >> > --- >> > release/installer/configuration.nix | 9 ++++++++- >> > release/installer/run-vm.nix | 5 +---- >> > 2 files changed, 9 insertions(+), 5 deletions(-) >> > >> > diff --git a/release/installer/configuration.nix b/release/installer/c= onfiguration.nix >> > index 3f9ef24..daaf5b7 100644 >> > --- a/release/installer/configuration.nix >> > +++ b/release/installer/configuration.nix >> > @@ -11,7 +11,14 @@ in >> > imports =3D [ (modulesPath + "/profiles/all-hardware.nix") ]; >> >=20=20 >> > boot.consoleLogLevel =3D lib.mkDefault 2; >> > - boot.kernelParams =3D [ "udev.log_priority=3D5" ]; >> > + boot.kernelParams =3D [ >> > + "quiet" >> > + "loglevel=3D3" >> > + "systemd.show_status=3Dfalse" >> > + "rd.systemd.show_status=3Dfalse" >> > + "udev.log_level=3D3" >> > + "rd.udev.log_level=3D3" >> > + ]; >>=20 >> Why 3 in particular? Experimentation? Inspiration from some other >> distribution? >>=20 >> > boot.initrd.verbose =3D false; >> >=20=20 >> > boot.kernelPackages =3D pkgs.linuxPackages_latest; >> > diff --git a/release/installer/run-vm.nix b/release/installer/run-vm.n= ix >> > index b9907f7..6639c8b 100644 >> > --- a/release/installer/run-vm.nix >> > +++ b/release/installer/run-vm.nix >> > @@ -40,8 +40,5 @@ writeShellScript "run-spectrum-installer-vm.sh" '' >> > -drive file=3D/proc/self/fd/3,format=3Draw,if=3Dvirtio \ >> > -kernel ${installer.kernel} \ >> > -initrd ${installer.initramfs} \ >> > - -append ${escapeShellArg (toString [ >> > - installer.kernelParams >> > - "systemd.journald.forward_to_console" >> > - ])} >> > + -append ${escapeShellArg installer.kernelParams} >> > '') (_: {}) >>=20 >> The divergence here was intentional, since in development it's very >> useful to be able to see logs on the serial console, and it should have >> a minimal impact on anything else. Did you see this causing problems >> with flicker-free boot or something? >>=20 --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQRV/neXydHjZma5XLJbRZGEIw/wogUCakZPOwAKCRBbRZGEIw/w oh5IAQDPW8rmR62347/4Lw4Ey+sSqXi3AMaqZ0E8T7qsjpyC2wD+KICkIgZ9pK0+ CCmaQ5nai8NYJwzwgMRB2xCmXY4WTAQ= =tDAQ -----END PGP SIGNATURE----- --=-=-=--