![]() If you don’t have enough free space, you’ll need to delete some other crap you’re hoarding there in order to make enough space. ![]() Here, I have a little over 93 MB available which is plenty. ciscoasa# show flash: | include freeġ27111168 bytes total (93192192 bytes free) Before proceeding, you’ll want to verify that you have enough space available to hold the ASA software (and ASDM, if you’re going to upgrade that too). Check for free spaceĭepending on your ASA hardware version (and what you already have saved in there), the amount of flash memory you have available will vary. If you don’t have the ability to download it from Cisco, well, you’re on your own. As long as you have a valid service contract, you should be able to login to and download it (unless Cisco’s doing something stupid again). In order to upgrade the software, you’re going to actually acquire the software. ![]() Let’s get to it! Download the softwareįirst things first. As an added bonus - at no extra charge for lucky Evil Routers readers - we’ll also upgrade ASDM while we’re at it. In this walkthrough, we’ll be upgrading the the ASA software via the command-line interface (CLI). After writing about how to upgrade a Cisco ASA license, I received a few messages asking about upgrading the Cisco ASA software.įortunately, just like upgrading IOS on a Cisco router, it’s an easy, straightforward process that you can knock out in a few minutes.
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