Administrator Guide
Recovering from a Failed Start
A switch that does not start correctly might be trying to boot from a corrupted Dell Networking OS image or from a mis-specied location.
In this case, you can restart the system and interrupt the boot process to point the system to another boot location.
1 Power-cycle the chassis (pull the power cord and reinsert it).
2 During bootup, press the ESC key when this message appears: Press Esc to stop autoboot...
You enter Boot-Line Interface (BLI) mode at the BOOT_USER# prompt.
3 At the BLI prompt, set the system parameter to ignore the enable password and reload the system:
BOOT_USER mode
BOOT_USER# boot change primary
You are prompted to enter a valid boot device (for example, ftp o r tftp) and a path or lename for the Dell Networking OS image
that you want to use.
4 (Optional) Set the secondary and default boot locations by entering the following commands:
BOOT_USER mode
BOOT_USER# boot change secondary
BOOT_USER# boot change default
5 Reboot the chassis.
BOOT_USER mode
reload
Restoring Factory-Default Settings
When you restore factory-default settings on a switch, the existing NVRAM settings, startup conguration, and all congured settings are
deleted.
To restore the factory-default settings, enter the restore factory-defaults {chassis | domain | linecard | pe |
rpm }
command in EXEC Privilege mode.
CAUTION
: There is no undo for this command.
Important Point to Remember
• After the restore is complete, a switch reloads immediately.
The following example shows how the restore factory-defaults command restores a switch to its factory default settings.
Dell# restore factory-defaults chassis nvram
***********************************************************************
* Warning - Restoring factory defaults will delete the existing *
* persistent settings (stacking, fanout, etc.) *
* After restoration the unit(s) will be powercycled immediately. *
* Proceed with caution ! *
***********************************************************************
Proceed with factory settings? Confirm [yes/no]:yes
-- Restore status --
Unit Nvram Config
------------------------
0 Success
80
Switch Management