[Bug 1969534] Re: mounting nfs shares fails

[Thomas Schweikle]

It is an old problem: if the server allows for nfs3 and nfs4, then the client shall probe nfs4 first. If it fails it has to fall back to nfs3. In some cases, the probe fails to detect nfs4 not working in some environments and tries using nfs4 even if it is impossible.
This is not really fixable.

Solution: explicitly give ver=3 as option within mount if Kerberos is
not available.

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https://bugs.launchpad.net/bugs/1969534

Title:
  mounting nfs shares fails

Status in autofs package in Ubuntu:
  Incomplete

Bug description:
  Mounting nfs shares from nfs3 or nfs4 servers fails.
  Mount command runs without ever returning.
  Share is not mounted even after hours of waiting.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: autofs 5.1.7-1ubuntu1
  ProcVersionSignature: Ubuntu 5.13.0-41.46-generic 5.13.19
  Uname: Linux 5.13.0-41-generic x86_64
  ApportVersion: 2.20.11-0ubuntu71.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Tue Apr 19 23:38:55 2022
  InstallationDate: Installed on 2011-10-19 (3835 days ago)
  InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  SourcePackage: autofs
  UpgradeStatus: Upgraded to impish on 2019-04-27 (1088 days ago)

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