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Starting boot drive mac os sierra how to#
Starting boot drive mac os sierra for mac#
Starting boot drive mac os sierra install#
Starting boot drive mac os sierra serial#
Starting boot drive mac os sierra portable#

It is advised that the user should go with a USB 3.0 supported drive, with a size of 16GB to ensure a swift transfer of data.

Make sure to purchase the C port flash drive to avoid any inconvenience.

A 12' Mac only contains a single C-Type port.

The user should check to see what size of ports they have on the Mac.

The user should scan the flash drive with some reputable Anti-Virus software.

The USB should contain 16-32GB of free space.

The user should buy a name-brand flash drive.

To ensure a risk-free procedure certain measure should be taken:

By installing older versions through USB, it permits certain Apps to run which are not compatible with the latest macOS.

Allows risk-free testing of the Beta version.

It allows the user to test a new version before you make the decision to upgrade.

Starting boot drive mac os sierra install#

Allows the user to install a different version of macOS.

Here are the top reasons why the user should choose to Boot Mac from USB:

It also helps to repair the Mac disk with Disk Utility and other tools. It provides the user access to the contents of the internal drive, assuming the data is safe and not corrupted. Using an external source like the USB drive helps the user get around the problem. The likeliest of the reason for choosing the boot from the USB method is that your Mac won't start which denies the user access to the computer.

Starting boot drive mac os sierra for mac#

Reasons for Mac Boot from USBīooting the Mac from USB in a way gives the power back to the user. One of them includes Booting the Mac from such a device. This small tool has opened the world to a stream of limitless options with respect to storing, transferring, copying data, and much more.

Starting boot drive mac os sierra portable#

Thanks to their portable nature, affordability, and compatibility, USB drives are being used to send and receive endless information across a surplus of networks and platforms all around the globe. Today, these drives are one of the most consumed used devices in the world. The drives are available in various sizes and as of to date, the 2TB(Tera-Byte) flash drives in terms of storage capacity are the largest ones available in the market. Any sort of data can be stored in this device. It is typically removable and much smaller than an optical disc.

Starting boot drive mac os sierra serial#

$ mv /tmp/ ~/Desktop/high-sierra.A Universal Serial Bus or USB Drive, also known as a flash drive is a portable data storage device that includes a memory which includes a USB interface. $ hdiutil convert /tmp/ -format UDTO -o /tmp/high-sierra.iso $ hdiutil detach /Volumes/OS\ X\ Base\ System

Now go to /Volumes directory, you can see there are two volume, the main disk volume is used for current macOS, the other is for macOS high sierra installer.

$ asr restore -source /Applications/Install\ macOS\ High\ Sierra.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase

Restore downloaded macOS high sierra installer to install_build volume.

dev/disk3s2 Apple_HFS /Volumes/install_build Hdiutil attach /tmp/ -noverify -nobrowse -mountpoint /Volumes/install_build

Attache above dmg file to install_build volume.

$ hdiutil create -o /tmp/high-sierra.cdr -size 7316m -layout SPUD -fs HFS+J

Create a temporary dmg file which will be used to save macOS high sierra content.

Starting boot drive mac os sierra how to#

If you want to see detail explain, you can read article How To Download macOS Mojave Installer And Convert To ISO File. You can follow below brief steps to do it. Now it is time to convert the above macOS high sierra installer to an iso file to install it in VirtualBox. Create ISO File From MacOS High Sierra Installer. drwxr-xr-x 11 root wheel 352 Dec 14 19:03 ContentsĢ. drwxr-xr-x 11 root wheel 352 Dec 14 19:03 Contents

You can also find it in the terminal use the below command.

When the download completes, the macOS High Sierra installer file will be saved in the /Applications folder, the installer file name is Install macOS High Sierra.

During the download process, you can see the remaining time of the download.

Click the blue GET button to popup the download macOS High Sierra prompt dialog, it will ask you whether to download it now or later, click the Download button to start the download.

And it will show the macOS High Sierra download page. Click it will open the App Store in your current macOS ( my current os is Mojave ).

After search the sentence macOS High Sierra download in google, I finally find the macOS high sierra download link.

So I need to download the macOS High Sierra. At first, I download the newest macOS Mojave follow the article How To Download macOS Mojave Installer And Convert To ISO File, and when I have done creating the iso file, I find VirtualBox does not support macOS Mojave, the highest version that Virtualbox supports is macOS High Sierra.