Router# copy tftp flash

Address or name of remote host []? 10.253.1.1
Source filename []? c2500-is-l.123-13a.bin
Destination filename [c2500-is-l.123-13a.bin]? 
Accessing tftp://10.253.1.1/c2500-is-l.123-13a.bin...
Erase flash: before copying? [confirm] yes
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee  ...erased

Loading c2500-is-l.123-13a.bin from 10.253.1.1 (via Serial0/0.1): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 931088 bytes]

Verifying checksum...  OK (0xA6B7)
931088 bytes copied in 205.461 secs (4532 bytes/sec)

Router#

[Note: I purposely truncated the size of the file to save time in the copy]