Administrator Guide

ONIE Overview
This chapter describes system diagnostics and troubleshooting. After running the diagnostic tools, your system displays pass or
fail test results. If all tests pass, the diagnostic tools exit normally. If a test fails, each diagnostic tool offers a different result.
NOTE: The troubleshooting package includes a README file that lists the tools version and the overall troubleshooting
package version. For more information, see this README file.
NOTE: To download the Release Notes, go to http://www.dell.com/support.
This system uses the power-on self test (POST) diagnostic tool that automatically runs during the system power-on at the BIOS
or U-boot level. This tool tests for catastrophic hardware failures that prevent booting the system. The error code is saved in
CMOS for the next boot. There is no physical alarm indication.
Topics:
• Boot Processes
• Viewing the System Information
Boot Processes
After the BIOS or U-Boot, POST runs to verify the devices required to boot to open network installation environment (ONIE)/
GRUB.
POST
POST diagnostics verify the system DRAM, DIMM, SPD, memory, RTC/NVRAM, and PCI devices. Test configuration parameters
and test results are saved in NVRAM.
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 file.
ONIE:/ # onie-support <output_directory>
The ONIE support file includes the following:
• kernel_cmdline
• runtime-export-env
• runtime-process
• runtime-set-env
• log/messages
• log/onie.log
3
ONIE Overview 19