cisco 3660 ios删除后用XMODEM下载出错

有一台CISCO 3660,因IOS删除了,所以开机只能进入ROMMON!
我用XMODEM命令下载IOS,但是下载完后ERASE FLASH出错..

rommon 2 > xmodem
usage: xmodem [-cyrx] <destination filename>
-c CRC-16
-y ymodem-batch protocol
-r copy image to dram for launch
-x do not launch on download completion
rommon 3 > xmodem -cx c3660-is-mz.123-2.t.bin
Do not start the sending program yet...
device does not contain a valid magic number
dir: cannot open device "flash:"

WARNING: All existing data in flash will be lost!
Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y
Ready to receive file c3660-is-mz.123-2.t.bin ...
Erasing flash at 0x30800000sector erase failed at location 0x30800000, status 0x20202020
flash sector will NOT erase...aborting



网友：

可以用TFTP试一下！！

用线连PC和ROUTER的一个以太端口
router>Ctrl+Break ；进入ROM监控状态
rommon>ip_address=10.65.1.10 ；设置路由器IP
rommon>ip_subnet_mask=255.255.0.0 ；设置路由器掩码
rommon>tftp_server=10.65.1.1 ；指定TFTP服务器IP
rommon>tftp_file=c2600.bin ；所要下载的文件
rommon>tftpdnld ；ROM监控状态升级IOS
###############################################################
###############################################################
#######
ok!