kubelet fails to start: system validation failed - wrong number of fields
Issue
- While upgrading the OpenShift cluster from version 4.10 to 4.11, the worker MachineConfigPool stays in progressing and node remains in NotReady
- Kubelet service on NotReady node cannot start due to a 'wrong number of fields' if fstab contains a space character for source location
/proc/mountscontains the extra space character making the List call to see 7 fields instead of 6.
Environment
- Red Hat OpenShift Container Platform (RHOCP)
- Upgrade from 4.10 to 4.11
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