Concept Guide

Dell# reload
Proceed with reload [confirm yes/no]: yes
Upgrading a Single Stack Unit
Upgrading a single stacked switch is necessary when the unit was disabled due to an incorrect Dell Networking OS version. This procedure
upgrades the image in the boot partition of the member unit from the corresponding partition in the master unit.
To upgrade an individual stack unit with a new Dell Networking OS version, follow the below steps:
1 Download the Dell Networking OS image from the master's boot partition to the member unit, and upgrade the relevant boot partition
in the single stack-member unit.
EXEC Privilege mode
upgrade system stack-unit unit-number partition
2 Reboot the stack unit from the master switch to load the Dell Networking OS image from the same partition.
CONFIGURATION mode
boot system stack-unit unit-number primary system partition
3 Save the conguration.
EXEC Privilege mode
write memory
4 Reset the stack unit to activate the new Dell Networking OS version.
EXEC Privilege mode
power-cycle stack-unit unit-number
Example of Upgrading a Single Stack Unit
The following example shows how to upgrade an individual stack unit.
Dell# upgrade system stack-unit 1 A:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!
!!!!!!!!!!!!!!!!!!!!!!
Image upgraded to Stack unit 1
Dell# configure
Dell(conf)# boot system stack-unit 1 primary system: A:
Dell(conf)# end
Dell#Jan 3 14:27:00: %STKUNIT0-M:CP %SYS-5-CONFIG_I: Configured from console
Dell# write memory
Jan 3 14:27:10: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED: Copied running-config to startup-config in
flash
by default
Synchronizing data to peer Stack-unit
!!!!
....
Dell# power-cycle stack-unit 1
Proceed with power-cycle? Confirm [yes/no]:yes
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Stacking