KB ID 0000073 Dtd 11/01/12
Before upgrading/updating the ASA to version 8.3 (or Higher) Check to see if you have the correct amount of RAM in the firewall ("show version" command will tell you). This is VERY IMPORTANT if your ASA was shipped before February 2010. See the link below for more information.ASA - Memory Error (Post upgrade to version 8.3)
Be aware, if you are upgrading to an OS of 8.4(2) or newer you can no longer access the device via SSH when using the default username of "pix" you need to enable AAA authentication for SSH, do this before you reboot/reload the firewall or you may lock yourself out.
1. Firstly make sure you have the latest system and ASDM images on your PC, you will need a valid service agreement and a CCO login with Cisco to download them.
2. Connect to the ASDM either via the client software or a web page pointed to https://IP_OF_THE ASA (NOTE you need to be on an IP that's allowed to connect to to the ASA.)
3. Tools > Upload Image on Local PC.
4. Select "ASA Image" > Browse Local.
5. Navigate to the ASA image file on your PC > Open.
6. Browse Flash.
8. Upload Image. > Go for a Coffee.
9. Halfway there > OK.
10 Configuration > Device Administration > Boot Image > Boot Config File Path Section > Browse Flash. NOTE on older ASDM's this is on the Properties Page.
11. Select the new one.
12. File > Save running configuration to flash.
13. Tools > Upload Image on Local PC.
14. Select ASDM Image > Browse Local.
15. Locate the new ASDM Image on your PC.
16. Browse Flash.
17. Select the new one > OK.
18. Upload Image.
20. Configuration > Device Administration > Boot Image > ASDM Image File Path Section > Browse Flash. NOTE on older ASDM's this is on the Properties Page.
21. Select the new one > OK.
22. Apply. (If you get an Error - see step 26).
23. File > Save running config to flash.
24. Tools > System Reload.
25. Schedule Reload.
26. Occasionally the Firewall will error, and the OS will not update, if this happens, either connect via telnet or the console cable, then issue the commands shown below. (substitute asa722-k8.bin for the filename you uploaded in step 7).
ciscoasa# ciscoasa# conf t ciscoasa(config)# boot system flash:asa722-k8.bin ciscoasa(config)# reload Proceed with reload? [confirm]
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