My existing pix (failover unit) has IOS of (5.3) veersion and i want to update it to 6.2(1) but when i try to copy tftp flash it shows !!!!!!!!!!!!!!!!!! these marks as its tranfering image but at the end the following message appears.
Received 1646134 bytes.
Checksum verification on new image failed.
Image not installed.
please help me in identifying the probem.
Sameer
