To boot your intelbased mac into any of the macos builtin startup modes, you must press and hold one or more keys detailed below after turning on the computer. How to create a windows 10 installer usb drive from a mac. On the left, rightclick the usb flash drive, select format disk for mac. After that, click the erase button to start the partition process. The storage media supplies the boot loader code that actually loads the os, so drive problems can prevent the os from loading or its partition from showing up in the startup manager, but no problem on one drive should prevent other boot sources from displaying their icons if they contain an os capable of booting that mac. The next thing is to merge the efi folders from windows efi boot drive and the usb installer, and for this, you can use an efi mounter like clover configurator. On a casesensitive file system, file is different from file. Sep 19, 2008 the storage media supplies the boot loader code that actually loads the os, so drive problems can prevent the os from loading or its partition from showing up in the startup manager, but no problem on one drive should prevent other boot sources from displaying their icons if they contain an os capable of booting that mac. Booting your mac from usb lets you fix boot issues or have an extra copy. When you use startup disk preferences to set mac boot from an external drive, so itll boot from that disk until you choose a different one.
Mac os x uses a boottime optimization effectively a smart readahead called bootcache that monitors the pattern of incoming read requests to a block device the boot disk, and sorts the pattern into a playlist it also measures the cache hit rate and stores the request pattern into a history list for being adaptive in future. How to quickly create a macos bootable usb on windows 10. Starting in 2018 the macbook pro includes a secure boot chip that prevents your macbook from booting windows, linux, bsd, gentoo, fedora, atlas supervisor, other mac oss on a usb, etc. Many users are aware of some boot commands for mac os x that provide different functionality for your system. Every mac running os x lion and later has a small 650mb hidden recovery partition called recovery hd located on your macs internal hard drive which is reserved for common utilities such as time machine backup,terminal utility, disk utility, hardware. How do i get into boot options with a nonmac keyboard. Jul 24, 2015 a macbook to run disk utility in os x. Select the system you would like to use to start your computer up.
Sep 23, 2019 once your bootable usb installation media is ready, remove it and insert it into your mac, power it on, holding down the option key, and select the usb you just created to reinstall mac os x. How to create a bootable macos high sierra usb install drive. Make sure that it has at least 12gb of available storage and is formatted as mac os extended. When you see the boot menu, click on install macos catalina 10. Macbook has a single usbc port, while macbook pro models from. You can boot it from a usb drive as long as it is partitioned properly and has the same version of your copy of os x. If this is the case, chances are that its using a mbr partition. If youre having issues trying to create a bootable media, you can get a usb flash drive that comes with mac osx ready to install. This works for usb drives including the ninjastik for 2018 to 2020 macs with the secure boot t2 chip, see the 2020 macbook pro boot from usb instructions a startup disk is a volume or partition of a drive that contains a bootable operating system. Open terminal, which is in the utilities folder of your applications folder.
Apparently, i had to plug the keyboard into the usb port closest to the middle mac mini late 2012, then it worked. While downloading an os x or macos version offers instant gratification, it means youre left without an installer. May 23, 2017 to actually boot the drive, reboot your mac and hold down the option key while it boots. The following is a more comprehensive list of the keyboard commands you know and many. If you have a newer mac and a usb drive that supports usb 3. You can also change what your mac does by holding down the following keys or key combinations during startup. How to make a macos bootable usb installation media. Click the locked icon and then enter your administrator password. This guide provides 2 ways to boot a mac from a usb flash drive. Set the format to apfs macos high serria and mojave or mac os extended journaled for os x 10. Similar to linux os, you can boot chrome os from a usb. You can create a bootable installer of the mac operating system to.
Make the format mac os extended journaled and use guid partition map as your scheme. This option exists because it matches the traditional behavior of unix and some people might need itdont select this unless you know you need it for some reason. Starting with disk drill 3, anyone can create a bootable mac os x drive in a matter of minutes. If youre using boot camp to start up from microsoft windows, set startup disk preferences to start up from macos instead. Go to mac apple store use your apple id and login find and download os x yosemite. Usb flash drive or other volume that youre using for the bootable installer. To actually boot the drive, reboot your mac and hold down the option key while it boots.
If you prefer not to change your macs default boot loader and have your usb key bootable from any mac here is the solution i found. Aug 20, 2016 click on your usb stick, then select erase. Cddvd drives are disappearing from computers, leaving usb storage as the only option when reinstalling an operating system. Jul 31, 2018 by default, mac starts from its builtin hard disk, but a startup disk can be any storage device that contains bootable contents that compatible with your mac. Select the usb drive as a startup disk when the option appears. With the arrival of os x lion in 2011, apple changed its softwaredelivery method to a download model with the mac app store instead of using physical dvds and other media. When your mac restarts, press and hold the option key till startup manager opens.
Type or paste one of the following commands in terminal. The os on my mac recently stopped working and in order to fix the issue i needed to use a bootable usb drive to reinstall the os. How to fix this item is temporarily unavailable mac book. How to make your mac boot from usb drive recoverit. Once your bootable usb installation media is ready, remove it and insert it into your mac, power it on, holding down the option key, and select the usb you just created to reinstall mac os x. Jan 15, 2019 to clean install mac os from usb, there are three things you should do. Listen sound for the chime sound and your mac will boot up. Use the arrow keys to select which drive to boot from and then simply press enter.
The startup manager scans and lists the drives that are connected and bootable. To clean install mac os from usb, there are three things you should do. Jul 05, 2017 os x extended casesensitive, journaled. This will launch apples startup manager which shows bootable devices connected to the machine. Nov, 2017 if the time comes to use this tool, insert it into the usb c port and boot the machine while holding down the option key. Feb 03, 2018 the os on my mac recently stopped working and in order to fix the issue i needed to use a bootable usb drive to reinstall the os.
Created a bootable usb drive using createinstallmedia as explained. Your mac should start up from the os x installer cddvd media. Im going to take you through a quick run through on how to boot. To live boot into linux on mac, you will first have to create a live usb for the distro you want. How to make a bootable flash installer of os x or macos. How to create a bootable macos sierra installer drive. Download installer of os x yosemite, mavericks, mountain lion, and lion we are still able to download yosemite from apple store. By default, mac os x doesnt use a casesensitive file system. Itll make your mac boot from usb in just a few clicks. How to create a bootable install usb drive of mac os x 10. I boot my mac mini, hold down alt on my non mac keyboard, but it does not go to boot options. And finally, after doing a backup, you can clean install os x of your choice from usb.
Apr 01, 2020 mac startup key combinations learn about the mac features and tools that you can access by holding down one or more keys during startup. One high quality usb flash drive with 16gb of storage. This option on boot trick works for quite literally any boot volume, whether its an external usb drive of any sort, a thunderbolt hard drive, boot dvd, cd, the recovery partition, even in dualboot environments with other versions of os x, or a linux or a windows partition with boot camp, if its bootable and connected to the mac it will be visible at this boot manager. Usb drives tend to be higher in capacity than disc media. While restarting, press the option key on your magic keyboard or macbook see the boot choices. Insert the bootable usb installer drive and go to apple menu restart. How to boot ubuntu on a mac from external usb storage. How to boot a macbook air from a usb external drive. I have successfully created a macos mojave bootable usb from macos. The best thing to do is download it once and create a bootable install usb drive from the file for all of your macs. How to create a bootable usb installer drive for macos. Go to apple menu system preference, then click startup disk.
By default, mac starts from its builtin hard disk, but a startup disk can be any storage device that contains bootable contents that compatible with your mac. A bootable usb installer is a handy tool for fresh installs of macos high sierra. When you hear the startup chime, press and hold the option key. Holding that key gives you access to os xs startup manager. This article addresses the creation of a bootable usb drive for os x mavericks and later as well as macos. How to dual boot windows 10 and macos on pc hackintosh.
Install the operating system from the macos utilities. For 2018 to 2020 macs with the secure boot t2 chip, see the 2020 macbook pro boot from usb instructions. Sometimes internet software issues unable to detect your mac accessories on the usb port. How to start up your mac from a bootable cddvd, usb thumb. How to clean install os x on your macmacbook proair. Open the system preferences application in the dock.
First, you should clean up your mac from the old baggage system files that have piled up over time. Mar 12, 2020 connect the usb flash drive or other volume that youre using for the bootable installer. Install, boot, and run mac os x from an external hard drive. How to start up your mac from a bootable cddvd, usb thumb drive. Drag the drive you just added to disk utility from the source list in the top left of the app white space to the destination path. How to quickly make a mac os x bootable usb on windows. Set format to mac os extended journaled, and set scheme to guid partition map.
If you want to use your usb stick with an apple mac, you will need to restart or poweron the mac with the usb stick inserted while the optionalt. Click on the restore tab in the centertop part of disk utility app. Connect the usb flash drive or other volume that youre using for the bootable installer. I boot my mac mini, hold down alt on my nonmac keyboard, but it does not go to boot options. To create a bootable usb drive with macos, use these steps. Print these boot option keys, because theyre particularly helpful to have. I was able to make a macos sierra external usb boot disk in a few minutes, and the installation worked without a hitch. To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your mac, or after your mac begins to restart. Once you run the operating system from the usb, the system fetches every necessary files from usb to the primary memory. Jun 22, 20 this option on boot trick works for quite literally any boot volume, whether its an external usb drive of any sort, a thunderbolt hard drive, boot dvd, cd, the recovery partition, even in dualboot environments with other versions of os x, or a linux or a windows partition with boot camp, if its bootable and connected to the mac it will be visible at this boot manager.
Press the power button to turn on your mac or restart your mac if its already on. Here are the steps to boot mac from the usb flash drive. Youll also benefit from usb 3, or usb type c this may be your only. Getting your mac to load from a usb drive is fairly straightforward. How do i get to boot options with a non mac keyboard then. If youre using a keyboard made for a pc, such as a keyboard with a windows logo, try a keyboard made for mac.
How to create a bootable installer for macos apple support. If your mac just boots to the login screen and you dont see the boot options menu, reboot your mac again and hold. However, if you use a windows keyboard for mac, press the alt key. Create macos mojave bootable usb from windows with clover. It works on any machine, from a macbook pro to an old imac. Follow the below process to boot your mac from bootable usb. How to boot a mac from usb drive with pictures wikihow. Clover boot disk includes tools and partition images to help you create macos mojave bootable usb from windows in just a few clicks. Once its all cleaned up, the next you should do is backup your newly cleaned mac.
Press the keys immediately after hearing the startup sound, unless otherwise specified. Then i thought i should back up the partition of the macos installer and share it with everyone who wants to use it from windows. It prevents unsigned operating systems from running on your mac. Download and create usb installer for mac os x yosemite. How to start up your mac from an external usb storage device. One big advantage of booting os from pendrive is, there is. Use startup manager or startup disk preferences to select the bootable installer as the startup disk, then start up from it. If your usb thumb drive, usbbased external disk or flash storage contains a usable operating system or an os x installer, you can select it at boot time using os xs builtin feature called startup manager, which can be invoked via a simple keystroke. How to create a bootable usb to install os x techrepublic. But did you know that you can create a bootable usb drive to install macos from.
Mac computers equipped with a t2 chip have an added feature called secure boot. This is problematic if you need to reinstall os x or macos on a newly formatted hard drive, if youre in an. How do i get to boot options with a nonmac keyboard then. The first mac was the macbook air which came out in january 2008. Sep 14, 2015 how to start up your mac from an external usb storage device. The process is fairly painless and, if you have a bit of time and patience you. How to make your mac boot from a usb drive makeuseof. The system will start the boot process off the usb drive. How to boot from usb on mac, windows or linux acronis. Secure boot helps protect against bootkits, or malware that infects the master boot record. Or use optioncommandr or shiftoptioncommandr to start up from macos.
A startup disk is a volume or partition of a drive that contains a bootable operating system. Nov 26, 2012 in order to boot mac from usb you will need a usb device with a sufficient storage capacity to hold the operating system. How to boot your mac from a usb bootable device youtube. Here are the steps i took to create the bootable usb drive i have a mid 2014 macbook pro with retina display. If you are keeping a bigger size usb, you can keep the work files generated after booting from the usb stick. Start up to startup manager, which allows you to choose other available startup disks or volumes. You set your mac or macbook which disk to start up from when more than one startup disk is connected.
Now, click on the erase button and the disk utility will prepare the usb stick for the next steps youre going to follow. Press and hold the option alt key on the keyboard when the computer starts. Make sure you have an extra storage device, which is at least 2gb in size. For example, if you install macos or microsoft windows on a usb drive, your mac can recognize that drive as a startup disk. You want to do this before creating the bootable media because there is a good chance that the drive was formatted using a windows device. How to choose a startup disk on your mac to boot from usb. I tried reset nvram, also use other port, i even test another bootable usb but it can be detected, just the external windows 10 usb drive not detect on macbook air during boot, but once boot in macos it show up as external drive. You can set your mac to automatically use a specific startup volume, or you can temporarily override this choice at startup. This article will help you create a mac os x or macos recovery usb drive to use in case of disaster or no boot from internal hard drive. Mar 30, 2020 a broken mac computer with mac os x or macos version 10. Dec 21, 2016 to live boot into linux on mac, you will first have to create a live usb for the distro you want. How to make a bootable macos installer on an external drive. The mac will boot the linux system from the connected usb drive. Drive is visible in startup disk but when i click restart it say.