Ethernet Switches & Routers

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New Contributor
Posts: 2
Registered: ‎02-12-2012

Rolling back software for FGS 648P

How do you roll back software from 5.0.0a to 4.2.0?  I accidentally upgraded our switch from 4.2.0 to 5.0.0a, but I don't have the EEPROM stacking module in our switch.  "This software needs License PROM to be installed in the system"

Any help is welcomed.

New Contributor
Posts: 2
Registered: ‎02-12-2012

Re: Rolling back software for FGS 648P

I was able to figure it out by trial and error.  Here are the steps just in case one of you run into this same issue:

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AT STARTUP

- press 'b' during bootup (will bring you to command prompt similar to ROM MONITOR)

AT COMMAND PROMPT

- 'ip address 192.168.1.1 255.255.255.0' (assuming workstation configuring device is 192.168.1.2)

- 'boot system tftp 192.168.1.2 <filename> primary'

- 'reset' (to reboot device)

AT COMMAND PROMPT

- 'copy tftp flash 192.168.1.2 <filename> primary'

- 'copy tftp flash 192.168.1.2 <filename> secondary'

- 'show flash' (to verify new files installed properly)

- 'reload'

AT COMMAND PROMPT

- 'show flash' & 'show version' (verify correct version)

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