572 | Stacking
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Upgrading a Single Stack Unit
Upgrading a single stacked switch is necessary when the unit was disabled due to an incorrect FTOS
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 FTOS version, follow these steps:
Figure 31-22 shows an example of how to upgrade an individual stack unit.
Figure 31-22. Upgrading a Single Stack Unit Example
Step Task Command Syntax Command Mode
1 Download the FTOS image from the master's boot
partition to the member unit, and upgrade the
relevant boot partition in the single stack-member
unit.
upgrade system stack-unit
unit-number partition
EXEC Privilege
2 Reboot the stack unit from the master switch to
load the FTOS image from the same partition.
boot system stack-unit unit-number
primary system partition
CONFIGURATION
3 Save the configuration.
write memory
EXEC Privilege
4 Reset the stack unit to activate the new FTOS
version.
power-cycle stack-unit unit-number
EXEC Privilege
FTOS# upgrade system stack-unit 2 A:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!
Image upgraded to Stack unit 2
FTOS# configure
FTOS(conf)# boot system stack-unit 2 primary system: A:
FTOS(conf)# end
FTOS#Jan 3 14:27:00: %STKUNIT0-M:CP %SYS-5-CONFIG_I: Configured from console
FTOS# 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
!!!!
....
FTOS# power-cycle stack-unit 2
Proceed with power-cycle? Confirm [yes/no]:yes
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