Name
loglevel — Set the default console log level.
Description
Specify the initial console log level. Any log
messages with levels less than this (that is, of higher priority) will be printed to the
console, whereas any messages with levels equal to or greater than
this will not be displayed.
The console log level can also be changed by the
klogd
program, or
by writing the specified level to the
/proc/sys/kernel/printk file.
The kernel log levels are:
-
0 (KERN_EMERG)
-
The system is unusable.
-
1 (KERN_ALERT)
-
Actions that must be taken care of immediately.
-
2 (KERN_CRIT)
-
Critical conditions.
-
3 (KERN_ERR)
-
Non-critical error conditions.
-
4 (KERN_WARNING)
-
Warning conditions that should be taken care of.
-
5 (KERN_NOTICE)
-
Normal, but significant events.
-
6 (KERN_INFO)
-
Informational messages that require no action.
-
7 (KERN_DEBUG)
-
Kernel debugging messages, output by the kernel if the
developer enabled debugging at compile time.
