How do I increase the kernel log ring buffer size?
Issue
- How do I increase the kernel log ring buffer size?
- Why are boot messages missing from the logs?
- A lot of boot messages are missing from the logs.
- The
dmesgfile does not contain all the log messages from boot. - I need to troubleshoot the boot process but some of the boot messages are missing.
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 5
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Close
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.