6/27/2023 0 Comments Hackintool![]() The next most useful trick is to be able to clear out NVRAM with the same command string. To delete all nvram variables just use the following syntax:įor changes to take effect, you must reboot the Mac, thus unless you’re doing something else you may want to just initiate a reboot from the command line while you’re there. Nvram -d SystemAudioVolume Going Further with nvram Modifications To be more specific, you can also target a set nvram variable for removal with the -d flag:įor example, to clear the system audio setting from nvram: Deleting Specific NVRAM Variables on Mac OS X The nvram command has other uses as well for advanced users, from settings like disabling the startup boot chime sound on a Mac to always booting into verbose mode in Mac OS X or even enabling safe boot mode from the terminal for remote management or a headless/keyboardless Mac. ![]() f set firmware variables from a text file x use XML format for printing or reading variables For those interested in learning more about this powerful command, the man page for nvram is quite helpful, as is the basic –help flag to show other syntax options: #USING HACKINTOOL TO FIX AUDIO MAC OS X# Note that arguments and options are executed in order. Whether or not you find this necessary or easy really depends on your skill level and your needs. Many advanced Mac users know they can also reset the PRAM / NVRAM on boot with a key sequence, which can be helpful in troubleshooting some particular issues as well, and that approach removes everything from NVRAM similar to the -c flag during an actual reboot, which is perhaps easier for many users to remember. This is particularly valuable for working with remote machines connected through SSH or found elsewhere on the network, where it would be impossible to manually reset NVRAM with a keyboard shortcut sequence.Īnother common example where clearing nvram can be beneficial for troubleshooting purposes is when the Mac App Store loads a blank display that won’t populate with any content or store data. #USING HACKINTOOL TO FIX AUDIO MAC OS X#.
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