アップグレード中に NFS を検出すると leapp アップグレードが失敗する理由

Issue

• コマンド leapp preupgrade が、エラーTitle:Use of NFS detected.Upgrade can't proceed で失敗します。

  Raw

  Risk Factor: high (inhibitor)
  Title: Use of NFS detected. Upgrade can't proceed
  Summary: NFS is currently not supported by the inplace upgrade.
  We have found NFS usage at the following locations:
  - Currently mounted NFS shares
  
  Remediation: [hint] Disable NFS temporarily for the upgrade if possible.
  Key: xxxxxxxxx