Jun 07, 2018 If you’re already on Ubuntu, you don’t need a Windows or Mac computer to create a bootable USB drive with Ubuntu – you can do it straight from your current OS. The Ubuntu distribution includes an extremely helpful tool called Startup Disk Creator – this will allow you to create a bootable USB drive from an ISO file. Jan 09, 2018 Method #1: Create Bootable USB/DVD on Mac Using Disk Utility. Locate the app 'Disk Utility' from the apps available on the 'Utilities' folder. Now pull down the fileStep 4. Browse to the ISO image file that you want to get burnt into your specific drive and click 'Ok'. Menu and choose 'Open Disk Image'. Browse to the ISO image file that you want to get burnt into your specific drive and click. Jan 11, 2014 For creating a Windows 8 bootable DVD using a Mac the following things are needed: ⇒ Windows 8 iso/image file. ⇒ Mac OS X installed on a Machine (MacBook/iMac) with Super Drive. ⇒ A blank 4.7 GB/16x DVD. Create Windows 8 Bootable DVD on Mac. Insert blank DVD in Super Drive. Select ‘Open Disk Utility’ Action in open box after inserting blank DVD.
A macOS USB installer saves much time when you want to install the OS offline on two or more Macs. Also, it helps in recovering a system after a startup failure. It is easy to make a macOS USB disk from the full installer downloaded from the App store; Apple provides clear-cut instructions for the same. However, people use this feature only when they have a problem with their computer, mainly when their system is not booting up. In this post, we explore the ways to make a bootable macOS USB for Catalina 10.15 and others from Windows PC and Mac.
![]() Make macOS Catalina 10.15 USB installer on Windows PC
TimeMachine is the safest option to recover a broken Mac in the offline mode. If a backup is not there, you have to go for a clean installation either from a bootable USB/DVD drive or the Internet. In my case, I lost the boot partition of my iMac and didn’t have a TimeMachine backup. Internet recovery was showing up, but it kept on failing to download the OS files from the servers. As it is my only Mac, I had no option left, until I found the method to use a Windows PC to create a Mac OS bootable USB installer. I did this for making a macOS High Sierra USB drive, and later I was successful in reinstating my iMac. As of now, the OS is Mojave, but the process given below is compatible with all editions of macOS including the upcoming macOS Catalina 10.15.
Step 1: Download macOS Catalina [DMG] for Windows
As said in the beginning, a Mac is must for creating bootable macOS USB disk. If you think about doing it from Windows, the options are limited. The cross-compatibility of extensions for the two OS are entirely different. Luckily some Windows applications support a bootable macOS disk format, DMG. Hence, If we can download macOS DMG file, then it possible build the USB installer from Windows environment.
Most of the sites talking about the bootable macOS USB installer on Windows is not guiding on how to download the required DMG files for the method. Check our page to download macOS Catalina installer installer in DMG format for Catalina, Mojave and High Sierra.
Step 2: Partition USB disk on Windows to make it bootable on Mac
Here we are creating a UBS installer for Mac on Windows. So make sure that we keep the partition of the USB disk to have an appropriate scheme. Converting the USB disk to have a GUID partition table (GTP) is recommended for this method work effectively.
Connect the USB disk to Windows and run the above-given commands in the correct order. It cleans and converts the USB disk to GUID partition table if it is using MBR or something else.
Step 3: Make bootable macOS Catalina USB installer on Windows 10
When the Internet recovery is stuck and fails to download the OS files, you could use Windows to make a bootable macOS USB installer. Out of the two or three software for handling macOS installer [dmg] in Windows, Transmac is the best one. Transmac is not free, but the developers offer a 15-day trial period, and that is sufficient for one-time use. Now let’s move on to the steps to create macOS Catalina USB disk on Windows.
Here we focus on preparing macOS Catalina 10.5 USB installer on Windows. But this method is same and applicable for Mojave, High Sierra and all previous versions up-to OS X Lion. How to boot to macOS Catalina from USB Installer made on Windows
Check the image below for macOS Catalina USB installer showing up in the boot options. In this way you could recover and restore a Mac without Internet. Some models of Macs show a prohibitory symbol when you boot from macOS Catalina recovery USB made on Windows. In that case, you need to Install Mojave or High Sierra first and then upgrade to Catalina 10.15 using the in-built software updater.
While restarting, Press the Option key on your Magic keyboard or MacBook see the boot choices. However, if you use a Windows keyboard for Mac, press the Alt key. When you see the boot menu, click on Install macOS Catalina (10.15), and proceed to the recovery process.
Alternative: Make a bootable Catalina USB installer on macOS![]()
The recovery partition in a Mac helps in restoring it from TimeMachine or the Internet when there is a system failure. It keeps the essential apps like Disk Utility, which aids in re-installing a fresh copy of macOS. However, this partition gets deleted when you change your Macs hard disk to SSD or like. A bootable macOS USB installer comes helpful in such situations. It is also useful when you want to install macOS on a couple of offline systems without wasting bandwidth and time.
You need a macOS DMG files for making a USB recovery disk in Windows but that not the case when you have a Mac. The only thing is that you have a copy of the Install macOS app, the offline installer downloaded from the App Store. Check out the most reliable ways to macOS USB recovery disk for Catalina, Mojave and High Sierra.
Method 1: Using Terminal to make macOS Catalina USB disk
Method 2: Using a third-party app to make booatble macOS USB disk.
If you are not familiar in dealing with the Terminal app and command-line interface, consider a freeware macOS app to create the bootable macOS installer. Among the many applications out there, we prefer Diskmaker as it supports Catalina, Mojave, High Sierra, and all other macOS builds after Lion.
The latest version DiskMaker 9 compatible with macOS Catalina 10.15.
Stream software for mac. Also, you may consider an alternative, macOS Catalina Patcher by Collin, here. The best thing about the patcher app is that it can make bootable MacOS ISO, and USB disk by downloading Catalina from the Internet, which DiskMaker do not support.
Download and create macOS Catalina USB bootable disk
Now, select the installation method as “Create a Bootable Installer,” and then pick the target USB disk in the next screen. Your macOS USB installer will be ready in a few minutes.
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Even if you’ve never had experience with rescue boot media before, don’t worry. Making a bootable DVD or CD is not difficult and it ensures you can get your system running, even when it doesn’t want to. What is rescue boot media?
Normally when powering your computer, the system “boots” (a.k.a. starts) from the operating system (OS) that is installed on your hard drive. Whether it is Windows, Linux, macOS, or something else, the OS tells all of the components of your computer what to do.
But sometimes you cannot use the installed OS, either because it is damaged or because you’re going to make changes to the OS that you cannot make while it’s in use. That’s where boot media comes in: it’s essentially a small, stripped down version of your operating system that can get your computer running when you can’t use the OS on your hard drive. You can create boot media on a DVD, CD or Blu-ray disk that is loaded through your optical drive, which we’ll describe below. (You can also store your rescue “disk” on a USB drive, but the process for creating and using USB boot media is different.) What’s needed to make a bootable CD or DVD?
To create a bootable disk, you’ll need three things:
DID YOU KNOW?
You can also create a Linux-based boot media disk using Acronis Disk Director 12. You can find instruction on how to do that here. How to make a bootable DVD or CD
Making a rescue boot disk using Acronis Disk Director 12 a simple process. How to search for files on mac.
How to boot from DVD or CD rescue mediaMicrosoft Bootable Usb Windows 7
Troubleshooting boot disk
If you followed all of these steps above, everything should be working fine. But if you find that your system is not booting from the disk like it’s supposed to, there are a few things you can check.
Create A Bootable Usb Drive Windows 10
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