Contents
What is in Kern log?
/var/log/kern: stores Kernel logs and warning data. This log is valuable for troubleshooting custom kernels as well. /var/log/dmesg: messages relating to device drivers. The command dmesg can be used to view messages in this file.
Can I delete var log Kern log?
I discovered that /var/log/kern. log. 1 takes up 25 GB of space, and there is no delete option for that file.
Is safe to remove var log?
All the logs are stored in /var/log by default. If your system is a testing system or you don’t really care what is in the log you can clear the log. But if you any of your application gives a error logs are the only place where you will find complete explanation.
Can I safely delete var log?
It is generally safe to delete log files. The only disadvantage associated with doing so is that you may not be able to examine the log, if you’re troubleshooting some other problem later. Since new logs are automatically generated, even this disadvantage is short-lived.
Why are my syslog and kern.log files so big?
There’s obviously something going on with your server causing events to be generated. Resolve whatever issue is causing that, and your logs should return to their normal size.
Is there a way to delete Kern log file?
As you need root permissions to do that, you won’t have an option in the GUI to delete that file. Each time you boot, log files will be created and rotated again, so you should probably watch for the next kern.log.* file sizes. Related bug report on Launchpad: https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+bug/115774
How much disk space does Kern log take?
Together they and the messages.log.x group can take up many Gb. The rest of the log files in the directory take up about 1% of the total so there is no need to try to mass-wipe the log directory. It might even be harmful to your system.. These files will be created again the first time they are needed.
Can you empty a very large log file?
No. Empty them but do not use rm because it could end up crashing something while you are typing the touch command to recreate it. If not root it will require sudo. Taken from another answer on AU. BEFORE YOU DO THAT. Do a tail {logfile} and check if there is a reason for them to be so big.