Bug ID 754336: BIG-IP VE cannot use MOS for reimaging with 4 GB of memory or less

Last Modified: Apr 29, 2023

Affected Product(s):
BIG-IP Install/Upgrade(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,, 15.0.0, 15.0.1,,,,

Opened: Dec 31, 2018

Severity: 3-Major


Attempting to perform a clean installation on a BIG-IP Virtual Edition (VE) using the Maintenance Operating system (MOS) may fail with 'no space left on device'.


The installation fails. Once that has occurred, the system automatically reboots into the previously active boot location.


This issue occurs when all of the following conditions are met: -- The device is a BIG-IP VE with 4 GB of RAM or less. -- You perform a clean installation of BIG-IP 14.1.0, or a clean installation of any earlier version after the system was previously upgraded to BIG-IP 14.1.0. Note: An example of a clean installation is one initiated by the "image2disk --format=volumes" command.


You can use either of the following workarounds: -- Temporarily assign at least 5 GB of memory to the VE instance for the duration of the installation. You can then lower it after installation is complete. -- Create a fresh image from one of the pre-populated images such as OVA or QCOW2 and migrate a previous configuration to it.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips