Sudo asr restore -source /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg -target /Volumes/Untitled -erase -format HFS+ Sudo hdiutil attach /Applications/Install\ OS\ X\ Yosemite.app/Contents/SharedSupport/InstallESD.dmg Open Terminal and type the following sequence of commands:
Download Install OS X Yosemite.app from App Store, if you do not have it your /Applications folder already.
How to create installation USB drive with Terminal commandsįormat your USB flash drive with a GUID Partition Table and named it Untitled. To install OS X Yosemite ► restart computer ► hold the Option key and select Installation USB drive from the menu.
Wait a few minutes and your Yosemite installation USB drive will be prepared. In our case "Untitled" is the name of USB flash drive! Replace "Untilled" by name of your flash drive. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Yosemite.app -nointeraction Now open the Terminal and type the following command:
Open the Disk Utility and format flash drive with a GUID Partition Table and check it out in the Finder if Install OS X Yosemite.app is in your /Applications folder. It is the easiest way how to create USB installation flash disk with OS X Yosemite. The createinstallmedia is a command line tool integrated to OS X Yosemite installer. How to create installation USB drive with createinstallmedia tool To boot from flash drive you need to press and hold Option (ALT) Key on keyboard through boot up the Mac. You can of course rename it to whatever you need but you will then need to alter the commands accordingly.
If you don't have the installer in Applications folder, you can download it from Mac App Store.Īlso you need flash drive with at least 8 GB capacity, formatted with a GUID Partition Table which is named Untitled by default like is shown on our screenshot. Preparation - get OS X Yosemite installer and USB flash driveįirst you need to have Yosemite installer (Install OS X Yosemite.app in Applications folder). How to create installation USB flash drive with Disk Utility and Finder.How to create installation USB flash drive with Terminal.Easiest way how to create installation USB flash drive with createinstallmedia tool.It will scan your Mac to look for and recover deleted or lost photos, videos, audio files, archives, emails, documents and more.Three ways how to create OS X USB installation drive: To restore the lost data back to Mac, you need to have the most powerful and useful software, iBeesoft Data Recovery for Mac, installed. Whether you restore Mac from USB hard drive or with the built-in internal recovery, it will always cause data loss. It will repairs errors that might prevent your Mac from booting. Among them, Disk Utility is the most useful tool. When the recovery system has booted, choose the option you need. Next, click the USB icon in the window to select it. Before the Apple logo appears, hold down Option and Command keys. To use the new recovery stick, you need to insert the USB hard drive again and reboot. Be patient and keep your USB hard drive connected firmly until it prompts to.
You need to ensure the action and click Continue, typing in the right password you have set for the Mac. When it finished for step 3, go to to download the Recovery Disk Assistant. The downloaded Recovery Disk Assistant will detect the USB drive. Click the Partition button in the dialogue.
Click the drop-down list for the Format and select Mac OS Extended. Click Options, then click GUID Partition Table heading, then OK. In the Partitions Layout heading, select 1 Partition from the drop-down list. Select it, then select the Partition heading. When connected successfully, it should appear in the window or the Disk Utility window. Next, plug in your USB hard drive to the USB slot on your Mac, making sure it is connected with your Mac. It is in the Utilities folder under Applications. If you have some important files there, please move them to somewhere to store first. Note: while using a USB memory stick to restore Mac, all data on the device will be erase completely. Here are the 7 steps you need to know for how to restore Mac from External hard drive, including USB flash drive. And it is also an exclusive feature that Mac turns any removable storage device into a recovery tool.
Restoring Mac from external hard drive on Mac is one of the choices that people apply if they can’t connect to a stable Wi-Fi while restoring a Mac. I want to restore Mac from an external hard drive. " Is it possible to restore Mac from USB drive on Mac? I heard somebody said that but I don’t know the details. Updated to macOS Data Recovery Tips by Johnson on Mar 21, 2022