Bug ID 755317: /var/log logical volume may run out of space due to agetty error message in /var/log/secure

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP MA-VE(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,

Fixed In:

Opened: Jan 11, 2019

Severity: 4-Minor


An agetty error message is output to the /var/log/secure log fil every 10 seconds while the instance remains on: agetty[<process_id>]: /dev/tty0 ttyS0: No such file or directory.


This may fill the /var/log/secure log file. When /var/log is full, certain system services may degrade or become unresponsive (e.g., DNS).


This agetty error message is an issue on all BIG-IP Virtual Edition and Cloud instances. It is not configuration-dependent.


Manually extend the /var/log logical volume. For more information, see Increase disk space for BIG-IP VE :: https://clouddocs.f5.com/cloud/public/v1/shared/disk_space.html.

Fix Information

The issue causing the agetty error message in /var/log/secure has been resolved.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips