Important Points To Remember; Restoring Factory Default Environment Variables - Dell S4048T Configuration Manual

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.
Dell#restore factory-defaults stack-unit 1 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
------------------------
1 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 the flash boot procedure to boot the device, the boot loader checks if the primary or the
secondary partition contains a valid image. If the primary partition contains a valid image, then the primary
boot line is set to A: and the secondary and default boot lines are set to a Null String. If the secondary
partition contains a valid image, then the primary boot line is set to B: and the secondary and default boot
lines are set to a Null String. If both the partitions contain invalid images, then primary, secondary, and default
boot line values are set to a Null string.
When you use the Network boot procedure to boot the device, the boot loader checks if the primary partition
contains a valid image. If a valid image exists on the primary partition and the secondary partition does not
contain a valid image, then the primary boot line is set to A: and the secondary and default boot lines are set
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