Boot parameters mac os x

Boot argument options in OS X

Some nvram hack maybe? Name required.

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Reset Any Mac OS X Password without Administrative Access or Losing Data

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    Boot argument options in OS X - CNET

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    How to Use OS X Boot Options to Troubleshoot Your Mac

    Follow OSXDaily. News - iOS For instance, a common option is to hold the Shift key to boot to Safe Mode, but you can also hold Command-V for verbose mode a text output of items as they load , or Command-S for Single User mode, which drops you to the command line as the "root" user so you can perform troubleshooting tasks.

    In addition to keyboard commands at startup, you can use the "nvram" terminal command to set a number of different boot options, which might be useful when troubleshooting your Mac. Apple's machines have a number of hidden boot options that you can use, though do keep in mind that most of these are for troubleshooting purposes and will only be useful to programmers. These three options are the most common ones that people would use when troubleshooting their systems; however, there are a number of others you can use as well:. With these options you can set them individually by running the above commands one at a time, or you can combine them if needed.

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    7. For instance, to set the system to boot into Safe Mode and verbosely show items as they load during startup, you can either run both of the commands listed above to do this, or you can simply combine them into the following command:. To disable these features and have the system boot normally without any extra options, you can erase them from the nvram by either resetting it or, more specifically, by running either of the following commands in the Terminal these will reset the boot arguments instead of resetting all the nvram variables :.

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      Double boot - Mac OS X & Debian

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