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4.7.11. hrut_resetreason

hrut_resetreason is a tool used to obtain the reset reason upon system boot. It reads the boot parameters from the /proc/cmdline file, extracts the string related to the system reset reason, and prints the output.

4.7.11.1. Syntax Description

The following is the command format for executing hrut_resetreason:

hrut_resetreason

  • This tool does not accept any arguments; simply run it to retrieve the reset reason at system startup.

4.7.11.2. Command Options and Function Descriptions

Default Usage

Command:

root@buildroot:~# hrut_resetreason

Function:

Extracts the system reset reason from the /proc/cmdline file and prints the output.

Output:

reset reason is: COLD_BOOT

Result Analysis:

  • reset reason is: indicates the extracted reset reason.

  • COLD_BOOT: indicates the specific reset reason. COLD_BOOT typically means the system was reset due to a cold boot (powering off and then on again).

    • Other possible reset reasons:

      • REBOOT_CMD: reboot triggered by a software command (e.g., reboot).

      • WARM_BOOT: warm boot (system resumes from hibernation or sleep state).

      • WATCHDOG: reboot caused by watchdog timer timeout.

      • POWER_FAILURE: reboot due to power failure.

      • HARDWARE_FAILURE: reboot due to hardware failure.