Stacking | 571
Upgrading a Switch Stack
To upgrade all switches in a stack with the same FTOS version, follow these steps:
Figure 31-21 shows an example of how to upgrade all switches in a stack, including the master switch.
Figure 31-21.  Upgrading all Stacked Switches Example 
Step Task Command Syntax Command Mode
1 Copy the new FTOS image to a network server.
2 Download the FTOS image by accessing an 
interactive CLI that requests the server IP address 
and image filename, and prompts you to upgrade 
all member stack units. Specify the system partition 
on the master switch into which you want to copy 
the FTOS image; valid values are a: and b:.
As shown in Figure 31-21, the system then 
prompts you to upgrade all member units with the 
new FTOS version.
'upgrade system { flash: | ftp: | scp: 
| tftp: | usbflash: } partition
EXEC Privilege
3 Reboot all stack units to load the FTOS image from 
the same partition on all switches in the stack.
boot system stack-unit
all primary system partition
CONFIGURATION
4 Save the configuration. 
write memory
EXEC Privilege
5 Reload the stack unit to activate the new FTOS 
version.
reload
CONFIGURATION
FTOS# upgrade system ftp: A: 
Address or name of remote host []: 10.11.200.241
Source file name []: $V-9-1-0/NAVASOTA-DEV-9-1-0-887/FTOS-XL-9-1-0-887.bin     
User name to login remote host: ftp
Password to login remote host: 
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Erasing IOM Primary Image, please wait
.!.................................................................................
...................................Writing.........................................
...................................................................................
...................................................................................
31972272 bytes successfully copied
System image upgrade completed successfully.
Upgrade system image for all stack-units [yes/no]: yes
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
Image upgraded to all
FTOS# configure
FTOS(conf)# boot system stack-unit all primary system: A:
FTOS(conf)# end
FTOS# write memory 
Jan 3 14:01:48: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED: Copied running-config to startup-config
in flash by default
Synchronizing data to peer Stack-unit 
!!!!
FTOS# reload
Proceed with reload [confirm yes/no]: yes