topic Re: Unable to boot asa5520 in Network Security

Unable to boot asa5520

Siva Rama Krishna Patibandla — Mon, 11 Mar 2019 18:57:59 GMT

Hi,

We are using asa5520 with 8.2 version,

By mistaklley we have enterd command as ' configure factory default' command in global config mode.

it got erased and after rebooting, it's not boting. asn also showing 'invalid key: 0032' on termminal window

Please help on this how get in to normal mode?

Siva.

Re: Unable to boot asa5520

Maykol Rojas — Thu, 21 Oct 2010 05:54:53 GMT

Hello

You may need to upload an image via rommon.Please get into rommon mode and do the following:

Download an image from cisco.com and put it on a PC

Plug the PC into port 1 and put an IP address of 192.168.1.2

Install a TFTP server on the PC

On rommon on the ASAPut the following commands

int gig 0/1

address 192.168.1.1

server 192.168.1.2

file

tftp

That will load the image to the ASA and boot it up, make sure to upload the image again and save it to flash, also make sure that the config-resgister is set as 0x1, you can double check it with the show version.

Any questions let me know.

Mike

Re: Unable to boot asa5520

Siva Rama Krishna Patibandla — Thu, 21 Oct 2010 06:59:43 GMT

Hi Mike,

Thank for your input,

Colud you please send detailed document on this if available.

Thanks& regards

Siva.

Re: Unable to boot asa5520

Siva Rama Krishna Patibandla — Thu, 21 Oct 2010 13:05:53 GMT

HI Mike,

After interrupting the booting process we are able to see the following commands are in rom mode.

rommon #0> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>
>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> I
Invalid or incorrect command. Use 'help' for help.
rommon #0>
rommon #0>
rommon #0> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>
>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> I
Invalid or incorrect command. Use 'help' for help.
rommon #0>
rommon #0>
rommon #0> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>
>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> I
Invalid or incorrect command. Use 'help' for help.
rommon #0>
rommon #0>
rommon #0> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>
>> Invalid or inc>>> Invalid or inc>>> Invalid or inc>>> I

we are unable to enter other commands whihc was mentioned by you.

Please support on this,

Rgds/Siva.

Re: Unable to boot asa5520

praprama — Thu, 21 Oct 2010 13:40:10 GMT

Hi Siva,

Use the commands as below:

rommon #1> ADDRESS=192.168.1.10
rommon #2> SERVER=192.168.1.1
rommon #3> GATEWAY=192.168.1.1
rommon #4> IMAGE=asa805-k8.bin
rommon #5> PORT=Ethernet0/0

rommon #6> tftp

Please ensure you specify the IP addresses/interface name/Image name based on your condition. Once you enter the "tftp" command the ASA will download the image you have specifed from the server and boot using it.

Please enter each of the commands in entirety and do not use "short" commands as they will not work in rommon mode.

Let me know how it goes!!

regards,

prapanch