Upgrading Cisco ASA from OSX Yosemite (Access Violation)

Here is a short post. I was upgrading my ASA 5505’s firmware, and encountered an error stating (Access violation)

BFWASA# copy tftp:// disk0:
Address or name of remote host []?
Source filename [asa846-k8.bin]?
Destination filename [asa846-k8.bin]?
Accessing tftp://
%Error reading tftp:// (Access violation)

The fix for this is:

  1. Navigate to firmware location on your OSX
  2. Click on the firmware in question and press command i
  3. This should open the Get Info window. Now, scroll down at the very bottom, and change the everyone access from No access to Read only

That should fix the (Access violation) when transferring a file via TFTP server.


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This blog is about the things I learned about computers and networking to help me to remember them as I push further my studies. I created this blog to help myself to continue my education; and if you find this blog helpful for your studies, that is great. That is one of the reasons why I made this blog, to share my interest and knowledge. Also, all the entries/posts I made are based on my views, opinion and for educational purposes only. If you see some mistakes, feel free to drop some comments. I would appreciate all the helpful comments. Thanks BTC: 14wVPFBWNAKmfNsgUrPpw8EytkXFLjxYoU ETH: 0x8528793dF77a57186f5B15dA6DC1eaA3c5e92c4a LTC : LMpW2rGYnYdUwvnHA4huB6TGcPEEc1JzXw
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4 Responses to Upgrading Cisco ASA from OSX Yosemite (Access Violation)

  1. Eric says:

    Huge help. For some reason my other IOS files had the right permissions but the one I was trying to transfer did not. Kudos to you sir!

  2. matt says:

    I have the same issue buy from server 2008 r2 (tftpd64)

    Not sure what to do….. I have given the folder location full access to “everyone” and permitted access to tftp-server inside x.x.x.x

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