gcloud compute instances get-serial-port-output

NAME
gcloud compute instances get-serial-port-output - read output from a virtual machine instance's serial port
SYNOPSIS
gcloud compute instances get-serial-port-outputINSTANCE_NAME[--port=PORT][--start=START][--zone=ZONE][GCLOUD_WIDE_FLAG …]
DESCRIPTION
gcloud compute instances get-serial-port-output is used to get the output from aCompute Engine virtual machine's serial port. The serial port output from thevirtual machine will be printed to standard output. This information can beuseful for diagnostic purposes.
EXAMPLES
To get the output from instance's serial port, run:
gcloudcomputeinstancesget-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.
--start=START
Specifies the byte index (zero-based) of the first byte you want returned. Usethis flag if you want to continue getting the output from a previous requestthat was too long to return in one attempt. The last byte returned in a requestwill be reported on STDERR.
--zone=ZONE
Zone of the instance to operate on. If not specified, you might be prompted toselect a zone (interactive mode only).gcloud attempts to identify theappropriate zone by searching for resources in your currently active project. Ifthe zone cannot be determined,gcloud prompts you for a selection withall available Google Cloud Platform zones.

To avoid prompting when this flag is omitted, the user can set thecompute/zone property:

gcloudconfigsetcompute/zoneZONE

A list of zones can be fetched by running:

gcloudcomputezoneslist

To unset the property, run:

gcloudconfigunsetcompute/zone

Alternatively, the zone can be stored in the environment variableCLOUDSDK_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 help for details.

NOTES
These variants are also available:
gcloudalphacomputeinstancesget-serial-port-output
gcloudbetacomputeinstancesget-serial-port-output

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Last updated 2025-05-07 UTC.