Tip: Use oci cli to reboot a VM

oci compute instance action --action SOFTRESET --region us-ashburn-1 --instance-id  <instance id you can get from kubectl describe node>

oci compute instance get  --region us-ashburn-1 --instance-id  <instance id you can get from kubectl describe node>

sometimes, you may get 404 error if you omit " --region us-ashburn-1"

Tip: Collect console serial Logs of Oracle Cloud Infrastructure

oci compute console-history capture   --region us-ashburn-1 --instance-id <instance-ocid>

--> oci compute console-history get  --region us-ashburn-1 --instance-console-history-id <OCID from the command before> 

--> oci compute console-history get-content --region us-ashburn-1  --length 1000000000 --file /tmp/logfile.txt --instance-console-history-id <OCID from the command before>