gcloud compute instances tail-serial-port-output
- NAME
- gcloud compute instances tail-serial-port-output - periodically fetch new output from a virtual machine instance's serial port and display it as it becomes available
- SYNOPSIS
gcloud compute instances tail-serial-port-outputINSTANCE_NAME[--port=PORT][--zone=ZONE][GCLOUD_WIDE_FLAG …]
- DESCRIPTION
- gcloud compute instances tail-serial-port-output is used to tail the output froma Compute Engine virtual machine instance's serial port. The serial port outputfrom the instance will be printed to standard output. This information can beuseful for diagnostic purposes.
- EXAMPLES
- To fetch new output from instance's serial port and display it, run:
gcloudcomputeinstancestail-serial-port-outputexample-instance--zone=us-central1-b - POSITIONAL ARGUMENTS
INSTANCE_NAME- Name of the instance to operate on. For details on valid instance names, referto the criteria documented under the field 'name' at:https://cloud.google.com/compute/docs/reference/rest/v1/instances
- FLAGS
--port=PORT- Instances can support up to four serial port outputs, numbered 1 through 4. Bydefault, this command will return the output of the first serial port. Settingthis flag will return the output of the requested serial port.
--zone=ZONE- Zone of the instance to operate on. If not specified, you might be prompted toselect a zone (interactive mode only).
gcloudattempts to identify theappropriate zone by searching for resources in your currently active project. Ifthe zone cannot be determined,gcloudprompts you for a selection withall available Google Cloud Platform zones.To avoid prompting when this flag is omitted, the user can set the
compute/zonegcloudconfigsetcompute/zoneZONEA list of zones can be fetched by running:
gcloudcomputezoneslistTo unset the property, run:
gcloudconfigunsetcompute/zoneAlternatively, the zone can be stored in the environment variable
CLOUDSDK_COMPUTE_ZONE
- GCLOUD WIDE FLAGS
- These flags are available to all commands:
--access-token-file,--account,--billing-project,--configuration,--flags-file,--flatten,--format,--help,--impersonate-service-account,--log-http,--project,--quiet,--trace-token,--user-output-enabled,--verbosity.Run
$gcloud helpfor details. - NOTES
- These variants are also available:
gcloudalphacomputeinstancestail-serial-port-outputgcloudbetacomputeinstancestail-serial-port-output
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Last updated 2025-05-07 UTC.