Comments on: How to upgrade the Cisco ASA 5505 software

By: Kiro Garnenkov

Kiro Garnenkov — Tue, 12 Apr 2011 10:11:15 +0000

Yes you can , but be careful , because there is some changes in image 8.3
As example , far as I know , In this image everything is objects and NAT is different …..

By: BlogAdmin

BlogAdmin — Thu, 03 Feb 2011 19:33:25 +0000

Yes you can. The important thing is to have enough RAM memory, so 512MB of RAM will be ok.

By: Lizandro Diaz

Lizandro Diaz — Thu, 03 Feb 2011 19:15:19 +0000

Can I upgrade to 8.3 with 64 MB of flash, I already have 512 of RAM.

Thanks in advance.

By: Mike

Mike — Mon, 28 Dec 2009 14:41:11 +0000

Just small addition for new asdm image (step 5)
ASA5505(config)#asdm image disk0:/asdm-621.bin
ASA5505(config)# wr mem

By: BlogAdmin

BlogAdmin — Thu, 30 Jul 2009 17:41:51 +0000

Hello Nico

Thanks for your excellent feedback.

There are always some little twists with Cisco products that you learn them only from experience.

Thanks for commenting

Harris

By: Nico

Nico — Thu, 30 Jul 2009 16:37:38 +0000

Just as an FYI – when I did this on my ASA 5505 it still booted to the old asa804-k8.bin instead of the new asa821-k8.bin image.

Turns out the boot config showed

BOOT variable = disk0:/asa804-k8.bin;disk0:/asa821-k8.bin
Current BOOT variable = disk0:/asa804-k8.bin;disk0:/asa821-k8.bin

I guess this meant that it would still boot the old image first. So I cleared the boot variable first with the following commands:

no boot system disk0:/asa821-k8.bin
no boot system disk0:/asa804-k8.bin

Then I reset it with this:

boot system disk0:/asa821-k8.bin
wr mem
reload noconfirm

Then it booted the correct one.

Thanks for the rest!!!

By: KrisBelucci

KrisBelucci — Tue, 02 Jun 2009 06:47:35 +0000

Hi, cool post. I have been wondering about this topic,so thanks for writing.