[c-nsp] rommon, Linux, xmodem and Sup720

[David Prall]

Your using x-modem to transfer an image to the Sup720. Grab a compact flash
and copy it to that, then copy from that to the bootflash. If the compact
flash is dos formatted its supposedly not bootable. Your going to need a
128MB flash for 12.2(18)SXE anyway.

David

--
David C Prall dcp at dcptech.com http://dcp.dcptech.com
  

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Sam Stickland
> Sent: Wednesday, July 20, 2005 10:10 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] rommon, Linux, xmodem and Sup720
> 
> Hi,
> 
> I've been trying without success to get anything correctly 
> transfered onto 
> the bootflash: of this SUP720. I've tried hyperterminal, which just 
> appeared to time out, and now it's connected up to a Linux box.
> 
> I'd have to go back to site to try hyperterminal again, so 
> I'd really like 
> to get a Linux solution working, particulary as hyperterminal 
> didn't seem 
> to be giving me much joy!
> 
> minicom's built in xmodem transfer is bombing out with:
> 
> Retry 0: NAK on sector
> Retry 0: Got 61 for sector ACK
> Retry 0: NAK on sector
> Retry 0: Got 20 for sector ACK
> Retry 0: NAK on sector
> Retry 0: Got 61 for sector ACK
> 
> I suspect that this could be related to rommon only 
> supporting no CRC, or 
> CRC-16, while minicom's xmodem implementation on top of lrzsz is 
> defaulting to CRC-32.
> 
> So, I tried doing it by manually manipulating the serial 
> port, in three 
> seperate terminal sessions. First I set up the serial port, 
> and then in 
> one terminal I do "cat /dev/ttyS1", allowing me to see the 
> command output.
> 
> In another terminal I do:
> 
>  	echo "xmodem -c README.PATCH" > /dev/ttyS1
>  	echo "y" > /dev/ttyS1
> 
> and I see the rommon monitor ready to receive the file.
> 
> In the third terminal I do:
> 
>  	sx -b --16-bit-crc README.PATCH > /dev/ttyS1 < /dev/ttyS1
> 
> And it reports:
> 
>  	Sending README.PATCH, 7 blocks: Give your local XMODEM receive
>  	command now.
> 
> After just 23 seconds the cisco reports:
> 
>  	CCCCCCCCCC
>  	Timeout waiting for data - aborting download...
> 
> sx takes a minute to kick into life. So the answer to this 
> problem seems 
> to be start up sx, wait 50 seconds, and then configure the cisco to 
> recieve the file.
> 
> But no, sx starts it's transfer exactly a minute after it 
> started, and 13 
> seconds later the cisco reports:
> 
>  	CCCCCCCCCC
>  	Timeout waiting for data - aborting download...
> 
> and then starts printing the xmodem output to console:
> 
>  	rommon 32 > v4.0 to v4.01 Installation
> 
>  	monitor: command "v4.0" not found
>  	rommon 33 > ---------------.com/changelo>
> 
> and sx just times out very very slowly:
> 
> Xmodem sectors/kbytes sent:   0/ 0kRetry 0: Timeout on sector ACK
> Retry 0: Timeout on sector ACK
> 
> 
> How on earth can I make this work?!?!?
> 
> Sam
> 
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