can the 1841 router boot from system image from usbdisk?

[zhendong xu]

I have a cisco1841 router with 32M CF card installed.

Now , i want boot a system image larger 32M from usbdisk.

First  i insert the 128M usb flash disk to the 1841 router and format it, then i can see the device from dir command.

Second copy the larger ios image from tftp to the usb disk and successed,i can see the image with " dir usbflash0:" command.

Third  i use this command "boot system " ,but there is no selection of  "usbflash0: "

Does someone tell me that can the cisco 1841 router  boot the system image from usb disk when reboot the router.

by the way the  System Bootstrap, Version 12.4(13r)T

[Nagendra Kumar Nainar]

Hi,

Can you go ahead and try configuring it?. I remember seeing there wont be any help option fo usbflash, but the comand will be accepted.

-Nagendra

[zhendong xu]

I have test that ， the 1841 router can boot from usb disk。

but there is a problem that when the router reload.

before the second " program load complete.........................."

there is about 3 minutes to wait.

So , the router boot from usb disk take long time than from CF card.

when use usb disk ,the hole progress of reloading the router will take about 300S.

It's too long .

Does something wrong?