[nsp] Boot 3620 from tftp

[Konstantin Barinov]

Perhaps, this is the point:

boot bootstrap flash:c3640-i-mz.120-7.T.bin

I'd put something like this, and it did not work:

boot bootstrap slot0:some_image

Seems, 3620 always wants to access flash:, but I do not
have internal flash: installed. Will try again...

br
--
Konstantin Barinov
INFONET AS, Tallinn, Estonia



Thursday, July 1, 2004, 8:35:01 PM, you wrote:


C> On Thu, 1 Jul 2004, Gert Doering wrote:

>> Hi,
>> 
>> On Thu, Jul 01, 2004 at 02:28:12PM +0300, Konstantin Barinov wrote:
>> > Maybe anybody knows, why 3620 does not want to boot from tftp?
>> > Tried everything possible, no effect. At the same time, I have
>> > plenty of 26** and 25** boxes booting from same tftp server, no problems.
>> 
>> The 36xx is a bit icky about TFTP booting, as the boot ROM has *no*
>> hardware module support whatsoever (as far as I understand).
>> 
>> My experience is that you need to have some IOS in the internal flash:
>> which understands your hardware.  The boot ROM will then load the
>> IOS from flash:, and use that to tftp in the "target" image.
>> 
>> > boot: cannot open "flash:"
>> > an alternate boot helper program is not specified
>> > (monitor variable "BOOTLDR" is not set)
>> > and unable to determine first file in bootflash
>> > loadprog: error - on file open
>> > boot: cannot load "ios/c3620-ix-mz.123-9.bin 10.0.0.2"
>> 
>> Using the image on slot0: to bootstrap TFTP does not seem to work
>> (but maybe that can be influenced by setting BOOTLDR in boot rom,
>> though I'm not sure what it must contain).

C> Here is one 3640 which just does it. It boots up image from flash and
C> after that loads new IOS using TFTP

C> r1-Trt-KJ#sh ver
C> Cisco Internetwork Operating System Software 
C> IOS (tm) 3600 Software (C3640-JS-M), Version 12.2(15)T9,  RELEASE SOFTWARE (fc2)
C> /----/
C> ROM: System Bootstrap, Version 11.1(17)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc2)
C> ROM: 3600 Software (C3640-I-M), Version 12.0(7)T,  RELEASE SOFTWARE (fc2)
C> /----/
C> System image file is "tftp://10.0.0.1/c3640-js-mz.122-15.T9.bin"
C> /----/
C> Configuration register is 0x102

C> r1-Trt-KJ#dir
C> Directory of flash:/

C>     1  -rw-     4703156              <no date>  c3640-i-mz.120-7.T.bin

C> r1-Trt-KJ#sh run
C> /----/
C> boot bootstrap flash:c3640-i-mz.120-7.T.bin
C> boot system tftp c3640-js-mz.122-15.T9.bin 10.0.0.2
C> boot system tftp c3640-js-mz.122-15.T9.bin 10.0.0.1
C> /----/

C> I put two TFTP servers not because to get backup but it takes so long for
C> router and switch to set ethernet up that first one gets timeout every
C> time. So, actually there is no TFTP server on 10.0.0.2, it just reserves
C> some time to get everything up :-)