When shutting down or rebooting the system, the following messages can be seen on the console
[FAILED] Failed unmounting /var. ... [<TIMESTAMP>] : Remounting '/var' read-only in with options 'seclabel,attr2,inode64,noquota'. [<TIMESTAMP>] : Unmounting '/var'. [<TIMESTAMP>] : Failed to unmount /var: Device or resource busy
- Red Hat Enterprise Linux 7 and 8
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