systemd: [/usr/lib/systemd/system/mdcheck_start.timer:12] Failed to parse calendar specification, ignoring: Sun *-*-1..7 1:00:00 is shown in /var/log/messages.

Solution Verified - Updated -

Issue

  • systemd error message in /var/log/message:

    1月 05 02:56:33 rhel7u7.example.com systemd[1]: [/usr/lib/systemd/system/mdcheck_start.timer:12] Failed to parse calendar specification, ignoring:... 1:00:00
    1月 05 02:56:33 rhel7u7.example.com systemd[1]: mdcheck_start.timer lacks value setting. Refusing.
    
  • mdcheck_start.timer fails to start.

Environment

  • Red Hat Enterprise Linux 7
  • Before mdadm-4.1-8.el7_9.x86_64

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