On 07/18/2012 08:32 PM, martin kalcher wrote:

Am 18.07.2012 16:02, schrieb Sudaraka Wijesinghe:

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Hi Everyone,

I'm playing with a custom kernel just for the fun of it, Everything works fine except it's very noisy when it boots. I'm using the same loglevel (4) as the default kernel that is in the Arch repo. And I have turned off many debug options under kernel hacking section. It does quiet down when I add the "quiet" parameter to the kernel command line.

What I was wondering is how the Arch kernel is keeping it quiet without using the command line parameter (quiet), is it using a patch for that or something?

Thanks,

P.s. Messages I get are hardware probing, state changes and file system mount, etc.

Do you use systemd? Have a look here:

https://wiki.archlinux.org/index.php/Systemd#Q:_Why_do_I_get_log_messages_on...

No, I'm using initscripts, and it does quiet down when I use the kernel command line parameter as explained in there, but I was wondering how default Arch kernel is doing it without the command line parameter. Thanks for the reply.

On 07/18/2012 09:35 PM, Christoph Vigano wrote:

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No, I'm using initscripts, and it does quiet down when I use the kernel command line parameter as explained in there, but I was wondering how default Arch kernel is doing it without the command line parameter.

It's a patch: % grep -R loglevel /var/abs/core/linux /var/abs/core/linux/change-default-console-loglevel.patch: #define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */

/var/abs/core/linux/PKGBUILD: 'change-default-console-loglevel.patch'

/var/abs/core/linux/PKGBUILD: patch -Np1 -i "${srcdir}/change-default-console-loglevel.patch"

Download the package via ABS and examine it for yourself :)

Greetings, Christoph

Thanks Christoph, I was able to solve the issue using your suggestion. It never occurred me to look in there :)