11-14-2010 09:14 PM - edited 03-06-2019 02:02 PM
Hello Friends,
I was trying to upgrade my IOS software, cisco router 1861, unforunately i didnt check for my flash memory and as a result the software crashed.
At the moment i am in ROMMON mode and cannot go back to the enable mode. I have changed to confreg 0x2102 but still after reset it comes back to ROMMON mode.
If someone would help me, as i want to have the procedure for deleting my previous IOS.
Solved! Go to Solution.
11-16-2010 08:14 PM
Please try to understand, I have Image in Flash card & insert on router, but how to load Image in Router from CF card in rommon mode
If you have an image in a valid CF, use the "boot" command from ROMmon.
monitor: command "Dir" not found
rommon 2 > dir flash
dir: missing device identifier.
dir: "dir" to get list of devices supporting filesystems.
rommon 3 >
The correct syntax is "dir flash:"
Readonly ROMMON initialized
loadprog: error - on file open
boot: cannot load "flash:c1861-adventerprisek9-mz.124-24.T.bin"
11-14-2010 09:19 PM
You have at least 2 options:
1. How to Download a Software Image to a Cisco 2600 via TFTP Using the tftpdnld ROMMON Command
2. Use a CF Card reader to copy an IOS image from your client to the CF.
NOTE: ROMmon upload of IOS is "not" an option because you have an 1800 ISR G1. (I mean, you could, but why bother and make things complicated?)
11-14-2010 09:57 PM
Hello leolaohoo,
Thanks for your reply,
I have plugged cat5 cable from 1861 to computer, although I saw LAN cable is unplugged.......... I need it for upload new IOS through TFTP
11-15-2010 12:47 AM
Please help me ,
When we are following the steps to create a tftp connection with the remote computer, it appears to be there is no LAN connectivity at all.
Please help how to get my FastEthernet intefaces back running again in ROMMON mode so I can starrt recover my IOS files.
Regards
11-15-2010 01:22 AM
Hi Vikrant,
Please ensure we have a cross over cable to connect between the router port and PC, or PC should support auto-mdix. Other requirement is to use the first FastEthernet routed port for TFTPDNLD.
Also, send the output from Rommon:
- set
Regards,
Deepak
11-15-2010 01:35 AM
Hi Deepak,
Thanks for your reply,
I think Cat5 cable is connect to Act7 Link, if i will swap to FE 0/0, it will work.
11-15-2010 01:03 PM
Have you tried Option #2?
11-15-2010 09:16 PM
Hello leolaohoo,
Thanks for your reply, Please try to understand, I have Image in Flash card & insert on router, but how to load Image in Router from CF card in rommon mode, i'm unable to see CF card in Rommon mode. also it appears to be there is no LAN connectivity at all. even after Connect CAT5 cable between TFTP server & Router due to that i am unable to follow the steps to create a tftp connection,
please suggest
11-16-2010 07:33 PM
Hello,
Unable to yet I think you should understand very well for help me, I hope you will solve my issue.
pls check this
rommon 49 > dev
Devices in device table:
id name
flash: external compact flash
I entered above & got this, also when i tried to boot flash:c1861-spservicesk9-mz.124-20.T4.bin
Readonly ROMMON initialized
loadprog: error - on file open
boot: cannot load "flash:c1861-adventerprisek9-mz.124-24.T.bin"
because
rommon 1 > Dir flash:
monitor: command "Dir" not found
rommon 2 > dir flash
dir: missing device identifier.
dir: "dir" to get list of devices supporting filesystems.
rommon 3 >
I hope someboby help me on this issue.
11-16-2010 07:42 PM
hanks for your reply, Please try to understand, I have Image in Flash card & insert on router, but how to load Image in Router from CF card in rommon mode, i'm unable to see CF card in Rommon mode. also it appears to be there is no LAN connectivity at all. even after Connect CAT5 cable between TFTP server & Router due to that i am unable to follow the steps to create a tftp connection,
2. Use a CF Card reader to copy an IOS image from your client to the CF.
11-16-2010 07:59 PM
Hey man,
I have used your 2nd option but pls check i am getting error,
11-16-2010 08:01 PM
11-16-2010 08:05 PM
Pls check my above comment, & pls try to understand, I'm
very frustrated due ti this issue
11-16-2010 08:14 PM
Please try to understand, I have Image in Flash card & insert on router, but how to load Image in Router from CF card in rommon mode
If you have an image in a valid CF, use the "boot" command from ROMmon.
monitor: command "Dir" not found
rommon 2 > dir flash
dir: missing device identifier.
dir: "dir" to get list of devices supporting filesystems.
rommon 3 >
The correct syntax is "dir flash:"
Readonly ROMMON initialized
loadprog: error - on file open
boot: cannot load "flash:c1861-adventerprisek9-mz.124-24.T.bin"
11-16-2010 10:50 PM
Thanks for your help, Issue has been solved, issue was in IOS, it was corrupted
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