From the USB drive’s Get Info window, deselect Ignore ownership on this volume checkbox.Connect the USB drive snuggly to your Mac.Check the compatibility of Mac with the latest macOS. When your Mac doesn’t boot from a bootable USB drive, you should perform the following fixes, then try the boot process once again. If you identify any of the above scenarios, read the following sections to learn how to fix the non-booting issue on an external USB drive. The USB drive is not formatted properly.The USB drive booting is prohibited (Refer Solution #4).The USB drive is not connected properly.Mac is not compatible with the macOS present in the USB drive.Your Mac may not boot from the external USB drive due to several reasons. If the above steps are performed correctly, your Mac should boot from the external USB drive. Select the USB drive.ĭ) Wait until your Mac boots from the external drive instead of the internal Macintosh HD. Once the intent is clear, execute the following steps to boot your Mac from an external USB drive.Ī ) Connect a bootable USB drive to the MacBook Air/Pro, iMac, or Mac mini.ī) For Intel-based Mac, start or restart it, then press-hold the Option key until Startup Manager appears. To upgrade macOS on multiple Mac devices.Purpose of Booting Your Mac from USB Drive But, sometimes, you need to boot your Mac from an external USB drive to perform a specialized task. When you power on your MacBook Pro or Air, Mac mini, or iMac, the computer boots up automatically from the internal storage drive-say SSD, HDD, or Fusion Drive. User can directly use Stellar Data Recovery through an activated link. Note: Create Recovery Drive feature is only available in Stellar Data Recovery Version 10 & earlier! The latest version has eliminated the need of any other Mac or external device. To salvage data from a crashed or non-booting Mac, download Stellar Data Recovery Professional to create a bootable USB drive. It will scan your Mac to look for and recover deleted or lost photos, videos, audio files, archives, emails, documents and more.Summary: In this blog, you’ll learn different troubleshooting methods if your Mac doesn’t boot from a USB 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 Troubleshooting Tips by William on | Approved by Anthony Spadafora
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