These notes I have below will work for the 2360 too. Version 7 (something in that range) is the supported releases by Avaya.
To upgrade a 2380 switch from WSS Software Version 4.0 or later, type commands such as the following.
Note. This example copies the image file into boot partition 1. On your switch, copy the image file into the boot partition that was not used the last time the switch was restarted.
For example, if the switch booted from boot partition 1, copy the new image into boot partition 0. To see boot partition information, type the show boot command.
2380# save config
success: configuration saved.
2380# backup system tftp://10.1.1.107/sysa_bak
success: sent 28263 bytes in 0.324 seconds [ 87231 bytes/sec]
2380# copy tftp://10.1.1.107/NT504111.020 boot1:NT504111.020
................................................................................
................................................................................
........................................success: received 74418349 bytes in 106.899
seconds [ 69615 bytes/sec]
2380# set boot partition boot1
success: Boot partition set to boot1:nt504111.020 (4.1.11).
2380# show boot
Configured boot version: 4.1.11
Configured boot image: boot1:nt504111.020
Configured boot configuration: file:configuration
Backup boot configuration: file:backup.cfg
Booted version: 4.1.11
Booted image: boot1:nt504105.020
Booted configuration: file:configuration
Product model: 2380
2380# reset system force
...... rebooting ......
Trent Steenholdt
Systems Engineer
The University of Notre Dame Australia
-Great scott!