09-12-2008 10:08 PM - edited 03-03-2019 11:31 PM
hi
I m using a 2800 router. I need to boot with an ios thats in the usbflash: i have loaded the usb with the necessary ios with fat file system. and on rommon mode i gave
"boot usbflash0:c2800nm-ipbase-mz.124-3i.bin" command and i got error *** TLB (Load/Fetch) Exception ***
Access address = 0x364
PC = 0x8003d878, Cause = 0x8, Status Reg = 0x3040a803
I have tried with boot system command on roommon but getting the error message. I have upgraded the boot rom
Please advice me on what to do?
Thanks
09-13-2008 10:10 AM
Hello Lakshmy,
here is a link to QA about USB flash support
http://www.cisco.com/en/US/prod/collateral/modules/ps6247/prod_qas0900aecd80232483.html
However, you can try to insert boot commands in IOS in order to have it load the image in flash.
boot system boot usbflash0:c2800nm-ipbase-mz.124-3i.bin
verify that this is the first boot command in sh run
with sh run | inc boot system
if so just do wr mem
otherwise:
remove the command that is before the one you added and then reissue it
you do again sh run | inc boot system
if this time the usbflash0: is in first row. ok do wr mem
do sh ver
verify that config register is 0x2102 or 0x0102.
reload
this requires to have a valid IOS in bootflash or in a compact flash.
Hope to help
Giuseppe
09-13-2008 11:12 AM
Are you using a Cisco USB flash or brand "x"?
If the latter, not all work. Also it seems important, besides formatting with FAT, to use 256 MB or smaller (which are a bit hard to buy new anymore, i.e. those that small).
It's also important to have the newer boot rom update, but I see you say you've already done that, but do insure you're router is using it (IOS show version will confirm).
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