For a multitude of reasons your VR appliance is not connected to vCenter, such as: You updated the SSL certificateYou disconnected the ESXi host that had the vSphere Replication applianceYou rolled back vCenter from a backup or snapshot Login to the VMware vSphere Replication appliance. Identify the password of your keystore. To do this, type ...

Your VM won’t boot. FSCK needed on an LVM. You don’t have root and are screwed. Boot the rescue disk. Scan all disks for partiitions:  lvm pvscan Scan all disks for volume groups and build /etc/lvmtab and /etc/lvmtab.d/* which are the database for all other lvm commands: lvm vgscan Change attributes of a logical volume lvm lvchange -ay VolGroup00 ...