Bypassing the prerequisite scanner
When you install monitoring agents, a prerequisite scan of your environment starts and takes a few moments to complete. If any requirements are missing, a message directs you to a log file with the reason for the failure. In some installation scenarios, you might want to either ignore warning messages or completely bypass the prerequisite check.
About this task
There are two levels of failure messages, WARN and FAIL, and there are two levels of bypassing:
- Setting the
IGNORE_PRECHECK_WARNINGvariable causes the installer to ignore the warning (WARN) messages.
- Setting the
SKIP_PRECHECKvariable causes the installer to ignore all failure messages.
If your agent installation failed and you received a warning (WARN) from the prerequisite checker, review the warning. If you want to continue with the installation, set
In an environment where you have virtual machine images that serve as templates, the prerequisite scan that is undertaken before installation begins can be done on only the first template image. If a VM image passes the scan, the other VMs created
from that image will also pass. You can save time by bypassing the prerequisite check for other VMs that were created from the same image. Set
SKIP_PRECHECK variable and install again.
SKIP_PRECHECK setting is also appropriate for the scenario where you have a new operating system that IBM Support or the Software Product Compatibility Reports indicate that it is supported but the prerequisite
checker has not yet been updated. Be sure to first try to install the agent, check the log, and make sure that this new OS is the only item failing – and the only item that you are bypassing – because
SKIP_PRECHECK causes the installer to bypass every item in the prerequisite checklist.
After downloading and extracting the installation files, complete this procedure to ignore the warning messages or to bypass the prerequisite scan.
On the system where you plan to install monitoring agents, enter one of the following commands:
- Ignore the warning (WARN) messages during the prerequisite check:
- Bypass the prerequisite scan:
What to do next
To restore the default setting the next time you want to install the agent with the prerequisite scanner, turn off the