js8call/Darwin/ReadMe.txt

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Some versions of Mac OS need special system settings to allow a shared memory
segment to be created (this is how the application communicates with the decoder).
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Included in this DMG is a sysctl.conf file that you can use to increase the
shared memory that the operating system allows to be allocated. You only have to do this process once.
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To install:
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0) Caution! Read through these instructions completely before proceeding.
If you are at all uncomfortable modifying your system, please feel free to
email me and I will help you walk though steps: kn4crd@gmail.com
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1) Copy the sysctl.conf file to your desktop
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2) Open a Terminal window (Applications -> Utilities -> Terminal.app)
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3) Run these commands in the Terminal window to install the sysctl.conf
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sudo cp $HOME/Desktop/sysctl.conf /etc/sysctl.conf
sudo chown root:wheel /etc/sysctl.conf
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sudo chmod 0664 /etc/sysctl.conf
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4) Reboot your system.
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If you run into any problems, feel free to reach out to me and I will help you
walk through the steps: Jordan Sherer <kn4crd@gmail.com>