NSX-T Edge boots into emergency mode instead of default mode

Products

• VMware NSX

Issue/Introduction

Symptoms:

• NSX-T Edge boots into emergency mode instead of default mode.
• Upon booting, you see a message similar to:
  
  Welcome to emergency mode! After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or ^D to try again to boot into default mode.
  
   
• Running the df -h command in emergency mode displays the mount point /dev/mapper/nsx-tmp missing.
• Running the dmesg command displays entries similar to:
  
  Failed to start File System Check on /dev/map..

Environment

VMware NSX-T Data Center 2.x
VMware NSX-T Data Center

Cause

This issue occurs due to errors encountered by the file system resulting in the removal of mount point /dev/mapper/nsx-tmp. This mount point is required for successful bootup of the NSX-T Edge.

Resolution

This is a known issue affecting VMware NSX-T Data Center 2.3.

Currently, there is no resolution.

Workaround:
To work around this issue:

1. Run the fsck /dev/mapper/nsx-tmp command.
2. Press "Yes" to fix all errors encountered by the file system.
3. Run the "Reboot" command. The NSX-T Edge should now boot into default mode.