Specifications

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 oers a dierent result.
NOTE: The troubleshooting package includes a README le that lists the tools version and the overall troubleshooting package
version. For more information, see this README le.
NOTE: To download the Release Notes, go to 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
• View 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 conguration 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 le.
ONIE-support creates the support le. Enter the location to store the le; for example, ONIE:/# onie-support/tmp.
ONIE:/ # onie-support <output_directory>
The ONIE support le includes the following:
• kernel_cmdline
• runtime-export-env
• runtime-process
• runtime-set-env
3
16 ONIE overview