Owners Manual

Boot processes

After the BIOS or U-Boot hardware verications, POST tests run to verify the CPU and memory prior to booting the system software.

After POST testing, there are three additional types of diagnostic tools you can use for testing your system.

• Manual diagnostic boot process — To run additional testing, manually download and run the EDA tool. The EDA tool reports and logs

pass/fail results.

• ONIE with EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You can

run this tool without a management interface.

• Autorun EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You can run

this tool without a management interface. The system always launches EDA in Quick Test mode to verify the hardware components

before loading the software. If there is a failure at boot-up, based on the EDA conguration, the software may or may not continue the

boot process.

POST

POST diagnostics veries system memory before the software loads. Test conguration parameters are saved in CMOS for the next boot-

up.

EDA, Quick Test Mode

Quick Test mode runs basic device access tests for the system hardware to verify that the device is active and responding.

In Quick Test mode, the EDA tool quickly tests if the hardware components are accessible. It conrms that the components respond to

read access and in some cases, simple write access. Tests are read-only and non-destructive (except the memtool command, which does

allow read/write operations).

Capturing Support Data from ONIE

To capture support data from ONIE, use the following commands.

1 Capture support data to the screen.

ONIE:/ # dmesg

2 Capture support data to the onie-support.tar.bz2 gzip le.

ONIE:/ # onie-support <

output_directory

The ONIE support le includes the following:

• kernel_cmdline

• runtime-export-env

• runtime-process

• runtime-set-env

• log/messages

• log/onie.log

Changing the Default Grub Boot Entry

To view or set the default Grub boot entry, use the following command.

The onie-boot-mode command has two options —l (the default) and —o. The Grub boot default is to show the current default entry.

View or set the default Grub boot entry.

ONIE:/ # onie-boot-mode [-o <onie_mode>]

ONIE diagnostics