NSX-V Manager stuck on boot

Problem
NSX-V Manager (version 6.4.4) is stuck on boot due an unexpected inconsistency of the filesystem.

/dev/sda2: UNEXPECTED INCONSISTENCY: RUN fsck MANUALLY.
              (i.e., without -a or -p options)

FAILURE:

File system errors were encountered that could not be fixed automatically. This system cannot continue to boot and will therefore be halted until those errors are fixed manually by a System Administrator.

After you press Enter. this system will be halted and powered off.

Solution

Disclaimer: Some of the procedures described below is not officially supported by VMware. Use it at your own risk.

What I suggest to solve the issue is to try to perform a FIX of the disk, following the steps described below:

1. First thing before to start you must have a valid backup
2. Turn off the NSX Manager VM
3. Perform a cold snapshot
4. Start NSX Manager VM via a Live linux CD
5. Then open a Terminal Console, become root and execute the commands ->
   # umount /dev/sda2
   # fsck -y /dev/sda2
6. Then reboot normally.

If it still does not work I suggest to deploy a new OVA and restore data from backup.

That's it