Mellanox Technologies SN2700 Hardware User Manual page 55

Troubleshooting
Table 21 - Troubleshooting
Problem Indicator
System boot failure
while using
MLNX-OS
System boot failure
while using Cumu-
lus Linux
Symptoms
The last software
upgrade failed on x86
based systems
Corrective Measures
• Connect the RS232 connector (CONSOLE) to a laptop.
• Push the system's reset button.
• Press the ArrowUp or ArrowDown key during the system
boot. GRUB menu will appear. For example:
Default image: 'SX_X86_64 SX_3.4.0008
2014-11-10 20:07:51 x86_64'
Press enter to boot this image, or
any other key for boot menu
Booting default image in 3 seconds.
Boot Menu
-------------------------------------
------------------------------
0: SX_X86_64 SX_3.4.0008 2014-11-10
20:07:51 x86_64
1: SX_X86_64 SX_3.4.0007 2014-10-23
17:27:34 x86_64
-------------------------------------
------------------------------
Use the ArrowUp and Arrowdown keys to
select which entry is highlighted.
Press enter to boot the selected
image or 'p' to enter a password to
unlock the next set of features.
Highlighted entry is 0:
"
• Select previous image to boot by pressing an arrow key
and choosing the appropriate image.
See Monitoring and Troubleshooting
User Guide.
Mellanox Technologies
Rev 1.2
in Cumulus Linux
55