Wireshark is a software application for protocol and network traffic analysis, also known as a network sniffer. The application can be downloaded for free at I downloaded Wireshark from the url and selected the macOS 10.6.dmg file. Apr 06, 2015 WireShark needs the X11 interface to run. I needed to get this X11 thing. Fortunately this turned out to be super easy. There’s a nifty little program called XQuartz that lets Mac users run applications that need the X11 environment. To run WireShark all I needed to do was download and install XQuartz.
Check compatibility
You can upgrade to OS Yosemite on any of the following Mac models. Your Mac also needs at least 2 GB of memory and 8 GB of available storage space.
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminium, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
To find your Mac model, memory, storage space and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X Yosemite, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Find out how to back up your Mac.
Get connected
It takes time to download and install OS X, so make sure you have a reliable internet connection. If you’re using a Mac notebook computer, plug it into an AC power source.
Download OS X Yosemite
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
If you still need OS X Yosemite, use this link: Download OS X Yosemite. A file named InstallMacOSX.dmg will be downloaded to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg.
Follow the on-screen instructions, which will guide you through the necessary steps to complete the installation.
Begin installation
After the installation of the installer has been completed, open the Applications folder on your Mac, then double-click the file named Install OS X Yosemite.
Click Continue and follow the on-screen instructions. You may find it easiest to start the installation in the evening so that it can be completed overnight, if needed.
Allow the installation to be completed
Please allow the installation to be completed without putting your Mac to sleep or closing its lid. Your Mac may restart, display a progress bar or show a blank screen several times while it installs both OS X and related updates to your Mac firmware.
Wireshark
Learn more
Wireshark For Mac
- OS X Yosemite can't be installed on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.