Understanding the boot codes

The boot codes are displayed on the screen when a node is booting.

The codes indicate the progress of the boot operation or the condition that has caused the node to fail to boot. The codes can isolate failures when the boot hangs or when the boot detects an unrecoverable error. Line 1 of the front panel displays the message Booting that is followed by the boot code. Line 2 of the display shows a boot progress indicator. If the boot hangs, the progress bar stops and you can use the code to isolate the fault. If the boot code detects a hardware error, Failed is displayed and you can use the error code to isolate the failure. In some cases, the same code that displays with the Booting message is also displayed as the Failed error code. Figure 1 provides a view of the boot progress display and Figure 2 provides a view of the boot failed display.

Figure 1. Example of a boot progress display
This figure shows how the boot progress error is displayed on the front panel
Figure 2. Example of a boot error code
This figure shows how the boot failed error is displayed on the front panel
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