router 3825

[Faisal.Saoud]

 Hello,

I have Cisco router 3825, and can't load ios and the output in attachment.

Anyone have a workaround for this problem?

Thanks

[Mark Malone]

HI
have you tried breaking into rommon and loading another image up from there and trying to boot from there , image may have got corrupted or else there's something wrong physically with it

looks like you had a parity failure which can be either software or hardware , i see traceback alerts too
*** System received a Cache Parity Exception ***

[Faisal.Saoud]

Thanks @Mark Malone for your response,

How can I load another image, could you provide me the steps to do that?

Thanks

[Mark Malone]

I think from memory on 3800 you can do a tftpdnld for an image whihc is quicker than the xmodem

Press Break on the terminal keyboard within 60 seconds of power up in order to put the router into ROMMON.

Then follow this doc it will be the same steps exactly
https://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/12714-76.html

another guide
https://supportforums.cisco.com/t5/network-infrastructure-documents/the-tftpdnld-rommon-command-recovery-procedure-fails-due-to/ta-p/3131356

if tftpdnld is not there in rommon you will need to do an xmodem transfer which is slower

[Faisal.Saoud]

this error appears during transfer the file:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
TFTP: out of memory. Transfer failed after 67108352 bytes.
TFTP: Operation terminated.

How can I delete files from flash?
I want to delete the existing firmware "c3825-advipservicesk9-mz.124-15.T10.bin"
this is my dir falsh:
rommon 22 > dir flash:
program load complete, entry point: 0x8000f000, size: 0xcb40
Directory of flash:

2 51873780 -rw- c3825-advipservicesk9-mz.124-15.T10.bin
6335 2751 -rw- sdmconfig-38xx.cfg
6336 931840 -rw- es.tar
6450 1505280 -rw- common.tar
6634 1038 -rw- home.shtml
6635 112640 -rw- home.tar
6649 1697952 -rw- securedesktop-ios-3.1.1.45-k9.pkg
6857 415956 -rw- sslclient-win-1.1.4.176.pkg

[Mark Malone]

to delete an image from rommon

rommon 22 >delete flash:image name

[Faisal.Saoud]

rommon 31 > delete flash:c3825-advipservicesk9-mz.124-15.T10.bin

monitor: command "delete" not found

any another action?

[Mark Malone]

cehck what commands are there , with the help function

rommon> ?

[Faisal.Saoud]

rommon 36 > ?
alias                set and display aliases command
boot                 boot up an external process
break                 set/show/clear the breakpoint
confreg                 configuration register utility
cont                 continue executing a downloaded image
context                 display the context of a loaded image
cookie                 display contents of motherboard cookie PROM in hex
dev                 list the device table
dir                 list files in file system
dis                 disassemble instruction stream
dnld                 serial download a program module
frame                 print out a selected stack frame
help                 monitor builtin command help
history                 monitor command history
iomemdef                 enable Smart-Init for IO mem
iomemset                 set IO memory percent
meminfo                 main memory information
repeat                 repeat a monitor command
reset                 system reset
rommon-pref                 Select ROMMON
set                 display the monitor variables
showmon                 display currently selected ROM monitor
stack                 produce a stack trace
sync                 write monitor environment to NVRAM
sysret                 print out info from last system return
tftpdnld                 tftp image download
unalias                 unset an alias
unset                 unset a monitor variable
xmodem                 x/ymodem image download
rommon 37 >

[Mark Malone]

looking at that doesn't look like you have delete erase or format to remove from flash , the commands must be only available in full cli

is there an external flash slot ? if so get a pmcia card and pout and image on it and stick it on and boot from there is another option to try get it going again

[Faisal.Saoud]

I see that the router have compact flash in the front, do you mean this flash? 

and have two USB, and have tried to connect usb flash and boot from it by this command:

rommon 1 > boot usbflash0:c3825-adventerprisek9_sna-mz.151-4.M12a.bin

and this error appears:

rommon 1 > boot usbflash0:c3825-adventerprisek9_sna-mz.151-4.M12a.bin
program load complete, entry point: 0x8000f000, size: 0x3d1a0

loadprog: error - on load of image from file system with monlib
boot: cannot load "usbflash0:c3825-adventerprisek9_sna-mz.151-4.M12a.bin"
rommon 2 >

Thanks

[Mark Malone]

Yes thats what i was talking about flash at the front but if its not booting from USB the board could be gone or something on it , you could try the flash too
these devices are EOL a few years now so im guessing there's no support to replace it

[Leo Laohoo]

Power down the router. Eject all those HWIC-4T and try rebooting again.

[Faisal.Saoud]

Hello @Leo Laohoo

I already eject the cards but nothing change, still the problem is existing

[Leo Laohoo]

Post the entire boot-up process.