TALM backup consistently fails with Error: no such file or directory 

TALM bundle 4.14.0-82

Always

1.Create and enable CGU with backup: true.
2. CGU fails with UnrecoverableError
3. TALM backup pod shows 
   INFO[0000] Error: no such file or directory                 
   ERRO[0000] exit status 1                                

$ oc logs -n openshift-talo-backup backup-agent-5z9s5 --follow
INFO[0000] Successfully remounted /host/sysroot with r/w permission 
INFO[0000] ------------------------------------------------------------ 
INFO[0000] Cleaning up old content...                   
INFO[0000] ------------------------------------------------------------ 
INFO[0000] 
fullpath: /var/recovery/cluster             
INFO[0000] 
fullpath: /var/recovery/upgrade-recovery.sh 
INFO[0000] Old directories deleted with contents        
INFO[0000] Old contents have been cleaned up            
INFO[0000] Available disk space : 299.73 GiB; Estimated disk space required for backup: 3.03 GiB  
INFO[0000] Sufficient disk space found to trigger backup 
INFO[0000] Upgrade recovery script written              
INFO[0000] Running: bash -c /var/recovery/upgrade-recovery.sh --take-backup --dir /var/recovery 
INFO[0000] ##### Mon Oct 16 14:51:10 UTC 2023: Taking backup 
INFO[0000] ##### Mon Oct 16 14:51:10 UTC 2023: Wiping previous deployments and pinning active 
INFO[0000] error: Out of range deployment index 1, expected < 1 
INFO[0000] Deployment 0 is already pinned               
INFO[0000] ##### Mon Oct 16 14:51:10 UTC 2023: Backing up container cluster and required files 
INFO[0000] Certificate /etc/kubernetes/static-pod-certs/configmaps/etcd-serving-ca/ca-bundle.crt is missing. Checking in different directory 
INFO[0000] Certificate /etc/kubernetes/static-pod-resources/etcd-certs/configmaps/etcd-serving-ca/ca-bundle.crt found! 
INFO[0000] found latest kube-apiserver: /etc/kubernetes/static-pod-resources/kube-apiserver-pod-5 
INFO[0000] found latest kube-controller-manager: /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-9 
INFO[0000] found latest kube-scheduler: /etc/kubernetes/static-pod-resources/kube-scheduler-pod-7 
INFO[0000] found latest etcd: /etc/kubernetes/static-pod-resources/etcd-pod-3 
INFO[0000] Error: no such file or directory             
INFO[0000] Error: no such file or directory             
INFO[0000] mkdir: cannot create directory '/etc/kubernetes/static-pod-resources/bin': Read-only file system 
INFO[0000] ##### Mon Oct 16 14:51:10 UTC 2023: Cluster backup failed 
ERRO[0000] exit status 1

Backup is successful