Restoring The Factory Default Settings; Important Points To Remember; Restoring Factory Default Environment Variables - Dell Z9500 Configuration Manual

save_env secondary_boot
save_env default_boot
NOTE: This command must be used once for each environment variable. If this step is not completed, the chassis
reboots continually.
7 Reboot the chassis.
GRUB mode
reboot

Restoring the Factory Default Settings

Restoring the factory-default settings deletes the existing NVRAM settings, startup configuration, and all configured settings
such as, stacking or fanout.
To restore the factory default settings, use the restore factory-defaults {clear-all | nvram} command in EXEC
Privilege mode.
CAUTION: There is no undo for this command.

Important Points to Remember

• When you restore all the units in a stack, these units are placed in standalone mode.
• When you restore a single unit in a stack, only that unit is placed in standalone mode. No other units in the stack are
affected.
• After the restore is complete, the units power cycle immediately.
The following example illustrates the restore factory-defaults command to restore the factory default settings.
Dell#restore factory-defaults 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
Power-cycling the unit(s).
....

Restoring Factory Default Environment Variables

The Boot line determines the location of the image that is used to boot up the chassis after restoring factory default settings.
Ideally, these locations contain valid images, using which the chassis boots up.
When you restore factory-default settings, you can either use a flash boot procedure or a network boot procedure to boot the
switch.
When you use a flash boot procedure to boot the switch, the reset boot variables are displayed below restore bootvar in
the command output.
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