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View device information

The ffx target commands can retrieve various types of information from Fuchsia devices.

Concepts

The ffx target list command prints the list of all Fuchsia devices connected to the host machine. This command is often used to quickly scan the following information of connected Fuchsia devices:

  • A device name
  • A device's product type
  • A device's state
  • A device's IP address

The ffx target show command, unlike ffx target list, targets only a single Fuchsia device and prints much detailed information about the device. To do so, ffx target show requires that ffx can establish a SSH connection to the target device. Below is some of the information you can obtain from ffx target show:

  • The board name of the target device
  • The version of the Fuchsia product running on the target device
  • The product configuration on the target device

Lastly, the ffx target snapshot command generates a ZIP archive file that captures the current state of the target device. A snapshot from a device contains a generous amount of information helpful for debugging.

Get the list of devices

To get the list of all connected Fuchsia devices, run the following command:

ffx target list

This command prints output similar to the following:

$ ffx target list
NAME                      SERIAL       TYPE       STATE      ADDRS/IP                                             AGE     RCS
fuchsia-5254-0063-5e7a    <unknown>    Unknown    Unknown    [172.16.241.43, fe80::7594:7308:4168:9fb1%brqemu]    0m8s    N

Get detailed information from a device

To get the detailed information of your target Fuchsia device, run the following command:

ffx target show

This command prints output similar to the following:

$ ffx target show
Target:
    Name: "fuchsia-4102-0ba9-8a3b"
    SSH Address: "[fe80::ae21:e7fa:8e1f:6c46%17]:22"
Board:
    Name: "<BOARD_NAME>"
    Revision: "<REVISION_NUMBER>"
    ...
Device:
    Serial number: "<SERIAL_NUMBER>"
    ...
Product:
    ...
    Build date: "<DATE>"
    Build name: "<BUILD>"
    ...
    Model: "<MODEL>"
    Name: "<NAME>"
    ...
Update:
    Current channel: "<CHANNEL>"
    Next channel: "<CHANNEL>"
Build:
    Version: "<VERSION>"
    Product: "<PRODUCT>"
    Board: "<BOARD>"
    Commit: "<DATE>"
...

Generate a snapshot from a device

To generate a snapshot from your target Fuchsia device, run the following command:

ffx target snapshot

This command generates a ZIP archive file and prints its location, for example:

$ ffx target snapshot
Exported /tmp/snapshots/20210616_183136/snapshot.zip

By default, the command stores the archive file in the /tmp directory of the host machine. To change this directory, run ffx target snapshot --dir <PATH_TO_DIR>.