SolusVM KVM VPS boots into emergency mode after removing additional disk from the VPS

Symptoms 

SolusVM KVM VPS boots into emergency mode after removing additional disk from the VPS

Cause

The entry with the removed additional disk was not removed from /etc/fstab inside the VPS

Resolution

1. Login into SolusVM admin panel
2. Enable rescue mode for the VPS at SolusVM > Virtual Servers > VPS > Rescue
3. Access the VPS in rescue mode via SSH
4. Mount the VPS disk image with the commands:

   # mkdir /mnt/sysimage
   # mount /dev/vdb

5. Remove the line for /dev/vdb device from the file /mnt/sysimage/etc/fstab