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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.
● When you restore the units in standalone mode, the units remain in standalone mode after the restoration.
● 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.
DellEMC#restore factory-defaults stack-unit 0 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.
Important Points to Remember
● The Chassis remains in boot prompt if none of the partitions contain valid images.
● To enable TFTP boot after restoring factory default settings, you must stop the boot process in BLI.
In case the system fails to reload the image from the partition, perform the following steps:
1. Power-cycle the chassis (pull the power cord and reinsert it).
2. Hit any key to abort the boot process. You enter uBoot immediately, the => prompt indicates success.
(during bootup)
press any key
3. Assign the new location to the Dell EMC Networking OS image it uses when the system reloads.
uBoot mode
=> setenv primary_boot f10boot
Boot variable (f10boot) can take the following values:
● flash0 — to boot from flash partition A.
● flash1 — to boot from flash partition B.
● tftp://server-ip/image-file-name — to boot from the network.
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