Assigning IP to HP Procurve managed switches.

How to configure a HP Procurve switch when the IP address is not known ?

Download a TFTPD Server and configure the server (tftpd32) as -

IP pool starting address : IP series like 192.168.1.1 (the system IP must be in the same mask.)
Size of pool                   : 5
Mask                            : 255.255.255.0

and Save it.

Then hold the reset and clear buttons of the switch together and release the clear button first and then the reset button once the switch is restarted. This will clear all the pre-configured settings of the switch. Then connect the switch with the system running the TFTPD server through RJ45 cable. The switch will grab one IP address from the range provided to the IP pool. Now you have the IP address of the switch to carry on further operations.