2948g failed to set port channel on

[Torturednacho]

I keep getting the following error

Console> (enable) set port channel 2/2
Illegal port_list range.
Failed to set port(s) 2/2 channel mode to on.
Console> (enable) set port channel 2/2 mode on
Usage: set port channel <port_list> [on|off|desirable|auto]
(example of port_list: 2/1-4 or 2/1-2 or 2/5,2/6)
Console> (enable) set port channel 2/1-4
Mismatch in port speed.
Mismatch in port duplex.
Mismatch in port speed.
Mismatch in port duplex.
Mismatch in port speed.
Mismatch in port duplex.
Failed to set port(s) 2/1-4 channel mode to on

 

[VinceWhirlwind]

Your first problem is due to you only nominating one interface - a portchannel by definition needs at least two interfaces in it.

Your second problem is pretty self-explanatory - you can't portchannel a bunch of ports unless they are configured the same.