# Boot Information Management

## 1. Function Overview

As system boot information, this product manages the information shown in the table below.

Management item | Description
--- | ---
System startup time | Time that the system booted up
Running firmware information | Firmware version currently running, and date generated
Firmware information for previous startup | Version and generated date of the firmware for the previous startup
Reason for boot | Reason why the system booted up. The following are recorded: * Startup due to power-on * Restart due to the reload command * Restart due to the cold start command * Restart due to the startup-config select command * Restart due to the boot prioritize sd command * Restart due to the restore system command * Restart due to the stack enable command * Restart due to firmware updates * Restart due to memory exhaustion * Restart due to kernel panic * Restart due to abnormal termination of process

This product stores the current boot information and information on the previous four boots, for a total of five boot records.

## 2. Related Commands

Related commands are indicated below.
For details on the commands, refer to the Command Reference.

Operations | Operating commands
--- | ---
Show boot information | show boot
Clear boot information | clear boot list

## 3. Examples of Command Execution

### 3.1. Show boot information

- This shows the current boot information.

      Yamaha>show boot 0
       Running EXEC: SWX2320 Rev.2.07.00  (Wed Jan  1 00:00:00 2025)
      Previous EXEC: SWX2320 Rev.2.07.00  (Wed Jan  1 00:00:00 2025)
      Restart by reload command

- This shows a list of the boot history.

      Yamaha>show boot list
      No. Date       Time     Info
      --- ---------- -------- -------------------------------------------------
        0 2025/03/15 09:50:29 Restart by reload command
        1 2025/03/14 20:24:40 Power-on boot
      --- ---------- -------- -------------------------------------------------

### 3.2. Clear boot information

- This clears the boot information.

      Yamaha#clear boot list

## 4. Points of Caution

If the creation of the system information storage area fails at startup, the following message will be output to the serial console screen.
At this time, all logs stored in this product will be deleted.

- Message list

  Message | Output timing
  Failed to create partition. | When the creation of the system information storage area fails
  Succeeded to re-create partition. | When the system information storage area is successfully recreated
  Boot sequence is interrupted by partition creation failure. | When the system information storage area could not be created and the system could not be started

## 5. Related Documentation

None

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