Messages in this thread Patch in this message | | | Date | Fri, 9 Jun 2006 22:05:50 +0200 (MEST) | From | Jan Engelhardt <> | Subject | Re: Caching kernel messages at boot w/PATCH |
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>Hi, >Is there a way to hide the kernel messages from the screen at boot ? >Best Regards >Steph > Except for the sole "quiet" flag, I have this in my kernel tree:
AS_13-conlevel.diff diff --fast -Ndpru linux-2.6.17-rc6~/kernel/printk.c linux-2.6.17-rc6+/kernel/printk.c --- linux-2.6.17-rc6~/kernel/printk.c 2006-06-06 02:57:02.000000000 +0200 +++ linux-2.6.17-rc6+/kernel/printk.c 2006-06-08 22:24:16.847058000 +0200 @@ -697,6 +697,14 @@ int __init add_preferred_console(char *n return 0; } +static __init int set_conlevel(char *str) { + if(*str >= '0' && *str <= '9') + *console_printk = *str - '0'; + return 1; +} + +__setup("conlevel=", set_conlevel); + /** * acquire_console_sem - lock the console system for exclusive use. * #<<eof>> It allows one to finely specify how much noise or silence the user wants. conlevel=4 makes it quite silent (still shows some minor erros [1]), and decreasing that of course will make it even more silent.
[1] sda: asking for cache data failed sda: assuming drive cache: write through piix4_smbus 0000:00:07.3: Host SMBus controller not enabled! These three are then gone for me with conlevel=3. dmesg still records all messages (a good thing(tm)).
Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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