Dell S5148F-ON Open Networking Hardware Diagnostic Guide September 2017 - Page 16

ONIE overview, Boot processes, POST, Capturing support data from ONIE

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3 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 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 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-support creates the support file. Enter the location to store the file; for example, ONIE:/# onie-support/tmp. ONIE:/ # onie-support The ONIE support file includes the following: • kernel_cmdline • runtime-export-env • runtime-process • runtime-set-env 16 ONIE overview

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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
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
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-support creates the support
file.
Enter the location to store the
file;
for example,
ONIE:/# onie-support/tmp
.
ONIE:/ # onie-support <
output_directory
>
The ONIE support
file
includes the following:
•
kernel_cmdline
•
runtime-export-env
•
runtime-process
•
runtime-set-env
3
16
ONIE overview