NFS shares do not automatically remount after a reboot or an upgrade

Products

• VMware vSphere ESXi

Issue/Introduction

NFS datastore unmounts automatically after every reboot or after performing patch update/upgrade.

Environment

VMware vSphere ESXi 7.0.3.

 

Cause

When the NFS server is specified using a hostname or Fully Qualified Domain Name (FQDN):

      DNS resolution is required for the ESXi host to resolve the NFS server name. If DNS resolution fails, the mount operation will not complete successfully. In such cases, errors similar to the following may be  observed

• Unable to resolve hostname

2025-03-27T21:24:01.095Z execution of 'boot storage restore --nfs41-volumes' failed : ResolveHostNames failed. Retrying Unreachable host: Example
2025-03-27T21:24:01.095Z execution of 'boot storage restore --nfs41-volumes' failed : ResolveHostNames failed. Retrying Unreachable host: Example

Resolution

 

• Add IP address and FQDN of NFS server details in /etc/hosts file of esxi host.
• For more details on adding the IP address and FQDN to /etc/hosts  file refer KB :  https://knowledge.broadcom.com/external/article/318036/changes-to-esxi-70-u3-hosts-etchosts-or.html