you need to assign an ip address to Vlan 1
to do it :
conf t
int vlan 1
ip address x.x.x.x x.x.x.x
no shut
then you need a tftp server like solarwinds tftp server ,install it on your computer and connect the computer to the switch.
then to backup configuration do this :
switch#copy running tftp
the switch asks for some parameters like the ip address of tftp server and ...
then to backup ios :
switch# copy flash: tftp:
it will ask for ip of the tftp server and the filename in the flash.
Please Rate if helpful.
Best Regards Bahman Mozaffari