‘No media devices detected’ Error During NetWitness Appliance Installation Using rsa-nw-12.4.0.0.20806.iso on Virtual Machine Deployed from OVA

[#1]

Article Number

000003227

Applies To

NetWitness Product Set: NetWitness Platform
NetWitness Product/Service Type: All nodes
NetWitness Version/Condition: 12.4
Platform: AlmaOS

Issue

When attempting to install NetWitness Platform version 12.4.0.0 using the rsa-nw-12.4.0.0.20806.iso on a virtual machine that was deployed from an OVA file, users may encounter the following error message during the nwsetup-tui process:

No media devices detected

This error typically occurs when deploying the ISO onto a virtual machine that was created using an OVA template.

Screenshot of the Error Message:

Image description

Cause

The error "No media devices detected" arises because the installation scripts (bootstrap and nwsetup-tui) incorrectly identify the media device. The scripts are configured to detect CentOS media devices and fail to recognize the AlmaLinux devices used in version 12.4, leading to the installation failure.

Resolution

To resolve this issue, update the scripts /usr/bin/bootstrap and /usr/bin/nwsetup-tui on the host where the failure is occurring. Follow the steps below to modify the necessary code:

Step-by-Step Instructions

1. Edit /usr/bin/bootstrap:

   Open the file /usr/bin/bootstrap using a text editor like vi:

   vi /usr/bin/bootstrap

   Update the following lines of code:

   Previous Code:

   cp -a "$mountPoint/Packages/"* "$NW_REPO_LOCAL_BASE/"
   local blockDeviceDetect=$(blkid | grep '"OEMDRV"\|"CentOS 7 x86_64"')
   local blockDeviceCount=$(blkid | grep -c '"OEMDRV"\|"CentOS 7 x86_64"')
   elif [[ "${blockDeviceDetect}" == *"CentOS 7 x86_64"* ]]; then
   

   Workaround:

   cp -a "$mountPoint/Minimal/Packages/"* "$NW_REPO_LOCAL_BASE/"
   local blockDeviceDetect=$(blkid | grep '"OEMDRV"\|"AlmaLinux-8-9-x86_64-dvd"')
   local blockDeviceCount=$(blkid | grep -c '"OEMDRV"\|"AlmaLinux-8-9-x86_64-dvd"')
   elif [[ "${blockDeviceDetect}" == *"AlmaLinux-8-9-x86_64-dvd"* ]]; then
   

   2. Edit /usr/bin/nwsetup-tui:

   Open the file /usr/bin/nwsetup-tui using a text editor like vi:

   vi /usr/bin/nwsetup-tui
   

   Update the following lines of code:

   Previous Code:

   if [ "$(blkid | grep -ci '"OEMDRV"\|"CentOS')" -gt 0 ]; then
   

   Workaround:

   if [ "$(blkid | grep -ci '"OEMDRV"\|"Alma')" -gt 0 ]; then
   

Notes

• Ensure you have the necessary permissions to edit these files.
• Always make a backup of the original files before making any changes.
• After making these changes, re-run the nwsetup-tui command to continue the deployment process.