Message "Failed unmounting /var" is seen on the console when shutting down or rebooting the system

Solution Verified - Updated -

Issue

  • When shutting down or rebooting the system, the following messages can be seen on the console

    [FAILED] Failed unmounting /var.
...
[<TIMESTAMP>] [1683]: Remounting '/var' read-only in with options 'seclabel,attr2,inode64,noquota'.
[<TIMESTAMP>] [1684]: Unmounting '/var'.
[<TIMESTAMP>] [1684]: Failed to unmount /var: Device or resource busy

Environment

  • Red Hat Enterprise Linux 7 and 8
    • systemd

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