Boot mac from cd command

Note that this issue also affects third-party startup products.

Your Answer

Make sure your firmware is current In some cases, out-of-date firmware can result in an inability to properly startup from optical media. Apple maintains a chart of available firmware updates for various Mac models in Knowledge Base article Go to the aforementioned Knowledge Base article, and download the firmware updater that appears next your Mac's name if one is listed and launch the downloaded installer. If your Mac requires the firmware update, the installation process will proceed.

If your Mac is already up-to-date, the firmware installer will alert you and no installation will take place. Clean your media It may seem like common sense, but dirty optical media has been the cause of failed startups for a number of users. Use a soft cloth if there is liquid or otherwise sticky residue, slightly dampen the cloth with plain water to gently wipe the optical side of the startup media.

15 Startup Key Combinations for Mac

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How to Boot Snow Leopard from a DVD-ROM - dummies

We drowned AirPods, Powerbeats Pro and Galaxy Buds : We sprayed them, dunked them and even put them through the wash to find out which one of these three wireless earphones can handle the most water. The following is a more comprehensive list of the keyboard commands you know and many you may not.


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A recent tweet from superfetz reminded me of several boot commands I've learned over the years, so I thought a more comprehensive list would be useful for MacFixIt readers. While you cannot run any code from Terminal or otherwise to set an order of boot devices, you can easily control where your Mac boots via keyboard commands.

Apple Boot Support – Boot a Mac from USB

The following key combinations can be held as your Mac is powering on:. Not all these functions work with every version of Mac OS X or with every hardware upgrade, but they are the most common. Do you have any boot commands not listed here that you use? Let us know in the comments! We tested 5G speeds in 13 cities.


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