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I am trying to put a new IOS image on a 2821 box, and TFTP after many
many tries with different PCs is not working. I have a USB drive
formatted to FAT that has the image on it, and when I do #sh usbflash0
it sees the image and lists the filename correctly. But when I try
#copy usbflash0 flash and a few other things, it tells me the source
and destination are the same.

I did RTFM as best I could -- I have a library of Cisco books but I
did all my Cisco stuff ten years ago when there were no USB ports.
One post in this loop says "copy the image from your USB drive..."
but doesn't say how. So I think it must be possible.

Thanks in advance for help,

Bob Wilson

On Nov 19, 4:05*pm, Bob Wilson <roverdro...@gmail.com> wrote:
> I am trying to put a new IOS image on a 2821 box, and TFTP after many
> many tries with different PCs is not working. *I have a USB drive
> formatted to FAT that has the image on it, and when I do #sh usbflash0
> it sees the image and lists the filename correctly. *But when I try
> #copy usbflash0 flash and a few other things, it tells me the source
> and destination are the same.
>
> I did RTFM as best I could -- I have a library of Cisco books but I
> did all my Cisco stuff ten years ago when there were no USB ports.
> One post in this loop says "copy the image from your USB drive..."
> but doesn't say how. *So I think it must be possible.
>
> Thanks in advance for help,
>
> Bob Wilson
> b...@bobwilson.us

PS -- It's not the USB I'm so interested in solving, it's getting the
image onto the router. If I'm barking up the wrong tree, somebody
tell me and suggest another way I can get it on there. Thanks again

In the message
<e746d9a2-5c00-4270-be67-> Bob
Wilson wrote:

| On Nov 19, 4:05*pm, Bob Wilson <roverdro...@gmail.com> wrote:
| > I am trying to put a new IOS image on a 2821 box, and TFTP after many
| > many tries with different PCs is not working. *I have a USB drive
| > formatted to FAT that has the image on it, and when I do #sh usbflash0
| > it sees the image and lists the filename correctly. *But when I try
| > #copy usbflash0 flash and a few other things, it tells me the source
| > and destination are the same.
| >
| > I did RTFM as best I could -- I have a library of Cisco books but I
| > did all my Cisco stuff ten years ago when there were no USB ports.
| > One post in this loop says "copy the image from your USB drive..."
| > but doesn't say how. *So I think it must be possible.
| >
| > Thanks in advance for help,
| >
| > Bob Wilson
| > b...@bobwilson.us
|
| PS -- It's not the USB I'm so interested in solving, it's getting the
| image onto the router. If I'm barking up the wrong tree, somebody
| tell me and suggest another way I can get it on there. Thanks again

Try using ftp.
copy ftp flash

On Nov 20, 3:56*pm, Morph <morph.n...@g.m.a.i.l> wrote:
> In the message
> <e746d9a2-5c00-4270-be67-4fe128012...@m26g2000yqb.googlegroups.com> Bob
>
> Wilson wrote:
>
> | On Nov 19, 4:05*pm, Bob Wilson <roverdro...@gmail.com> wrote:
> | > I am trying to put a new IOS image on a 2821 box, and TFTP after many
> | > many tries with different PCs is not working. *I have a USB drive
> | > formatted to FAT that has the image on it, and when I do #sh usbflash0
> | > it sees the image and lists the filename correctly. *But when I try
> | > #copy usbflash0 flash and a few other things, it tells me the source
> | > and destination are the same.
> | >
> | > I did RTFM as best I could -- I have a library of Cisco books but I
> | > did all my Cisco stuff ten years ago when there were no USB ports.
> | > One post in this loop says "copy the image from your USB drive..."
> | > but doesn't say how. *So I think it must be possible.
> | >
> | > Thanks in advance for help,
> | >
> | > Bob Wilson
> | > b...@bobwilson.us
> |
> | PS -- It's not the USB I'm so interested in solving, it's getting the
> | image onto the router. *If I'm barking up the wrong tree, somebody
> | tell me and suggest another way I can get it on there. *Thanks again
>
> Try using ftp.
> copy ftp flash

I'd thought of that earlier but didn't have an FTP server locally.
Since you suggested it, I got a server and installed it, and the image
slurped right over without a hitch. Thanks much

Bob W

On 6 Dec, 04:46, awstiver <alnos...@zoominternet.net> wrote:
> Some tftp servers have limitations on the size of file that can be
> transferred, and 2821 images can be pretty large. *I've had success with
> the latest tftp server from Solarwinds, and it's free.

I think all tftp servers have a limit of 64k blocks. Blocks are
usually 512 bytes but perhaps bigger ones are possible now,
no idea. Some old tftp implementations were limited to 32k
blocks due to incorrect implementation (signed instead of
unsigned int).

64k x 512 bytes = 32M.

ftp is the future for IOS images.

Serv-U is ideal for ftp (windows binaries available)
tftpd32 for tftp except that the new versions
have dhcp server which may be on by default
so take care.

Of course non-windows has it all in already.

On Sat, 12 Dec 2009 12:47:57 -0800 (PST), bod43 <>
wrote:

>On 6 Dec, 04:46, awstiver <alnos...@zoominternet.net> wrote:
>> Some tftp servers have limitations on the size of file that can be
>> transferred, and 2821 images can be pretty large. *I've had success with
>> the latest tftp server from Solarwinds, and it's free.
>
>I think all tftp servers have a limit of 64k blocks. Blocks are
>usually 512 bytes but perhaps bigger ones are possible now,
>no idea. Some old tftp implementations were limited to 32k
>blocks due to incorrect implementation (signed instead of
>unsigned int).
>
>64k x 512 bytes = 32M.
>
>ftp is the future for IOS images.
>
>Serv-U is ideal for ftp (windows binaries available)
>tftpd32 for tftp except that the new versions
> have dhcp server which may be on by default
> so take care.
>
>Of course non-windows has it all in already.
i still use an ancient 3Com utility 3Cdaemon (on windows).

runs as a user mode program, and has TFTP client and server, FTP
server and a Syslog daemon.

A quick google shows it has actually been updated only 3 years ago....
http://support.3com.com/software/uti...ows_32_bit.htm
--
Regards

- replace xyz with ntl