Re: [PATCH] installer: suppress kernel warning/info/debug messages

["'Badrikesh Prusty' via isar-users" <isar-users@googlegroups.com>]

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Hi,

Agreed, hiding warning is a bad idea. I will increase loglevel to 4 to show 
the warning messages as well and send patch v2.

Thanks,
Badrikesh

On Tuesday, December 23, 2025 at 4:20:44 AM UTC+5:30 Florian Bezdeka wrote:

> On Fri, 2025-12-19 at 09:36 -0500, 'Badrikesh Prusty' via isar-users
> wrote:
> > Lower the kernel log level to 3 to suppress warning, notice, info,
> > and debug messages on the console.
> > This prevents audit and driver messages from cluttering the screen
> > while keeping critical errors and systemd service status output
> > visible, resulting in a cleaner installer UI.
>
> Hiding warnings is not a good idea. If something is wrong on the target
> the user should know. It will not be the first time that a problem is
> hidden (and comes back in "urgent mode") just because someone decided to
> suppress warnings.
>
> > 
> > Signed-off-by: Badrikesh Prusty <badrikes...@siemens.com>
> > ---
> > meta-isar/recipes-core/images/isar-image-installer.bb | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/meta-isar/recipes-core/images/isar-image-installer.bb 
> b/meta-isar/recipes-core/images/isar-image-installer.bb
> > index 3511f3f6..fde81a19 100644
> > --- a/meta-isar/recipes-core/images/isar-image-installer.bb
> > +++ b/meta-isar/recipes-core/images/isar-image-installer.bb
> > @@ -11,7 +11,8 @@ DESCRIPTION = "Example of a ISAR based Installer Image"
> > INSTALLER_WKS_FILE ??= "installer-efi.wks.in"
> > WKS_FILE = "${INSTALLER_WKS_FILE}"
> > 
> > -ADDITIONAL_KERNEL_CMDLINE ??= ""
> > +# Hide kernel warning/info/debug messages
> > +ADDITIONAL_KERNEL_CMDLINE ??= "loglevel=3"
> > 
> > OVERRIDES .= "${@':unattended-installer' if 
> bb.utils.to_boolean(d.getVar('INSTALLER_UNATTENDED')) else ''}"
> > ADDITIONAL_KERNEL_CMDLINE:append:unattended-installer = " \
> > -- 
> > 2.47.3
> > 
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> .
>

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