Dell Latitude 5400 Chromebook Service Manual

CROSH

This topic covers the information you need to know for the Chrome Shell (CROSH). CROSH and the Google Chrome URL commands provide some troubleshooting tools, information, and advanced settings.

To prepare Dell Latitude 5400 Chromebook for SupportAssist (ePSA) technicians must connect the power adapter to the system and keep the power adapter connected. To run SupportAssist (ePSA), press and hold the Esc + Refresh + Power to boot into Chrome operating system recovery menu. Press F12 or Ctrl + C key on the keyboard to go to diagnostics screen and press the Power button to launch ePSA Most of the troubleshooting must be done inside the OS. Chrome Shell (CROSH) and the Chrome URL commands provide some troubleshooting tools, information, and advanced settings. CROSH is a command line interface similar to the Linux BASH or Windows command (cmd.exe) terminals. Chrome OS is based on Linux, but CROSH does not recognize most Linux commands. The most useful commands for troubleshooting are memory test, storage_test_1, storage_test_2, ping, and tracepath. Ping works differently than it does in Windows. By default, it repeats until you press <Ctrl> + <C>, and it does not show any statistics. The tracepath command is similar to the Windows traceroute command. A detailed explanation of the commands can be viewed below, by typing help, or help_advanced in CROSH.

1. Open the Chrome browser.
2. Press <Clrl> + <Alt> + <T> The interface appears as shown in the screenshot below:
3. Type in the CROSH command for diagnostics. Type 'help' for a list of available commands. Type help_advanced to display a complete list of commands for debugging purposes

Alternately, refer to CROSH Commands for the list of the CROSH commands available for diagnostics.