Download the macOS high sierra DMG file from this link. Download Transmac from their official website or you can download it directly from here. In this tutorial, I am going to use the Transmac software to create the bootable USB drive from windows. Burn DMG file to bootable DVD in Windows or convert to ISO/IMG format. Download macOS Mojave or High Sierra DMG and make Installer disc on Windows PC. To create a bootable macOS installation disk, you have to burn the DMG file to a USB drive as CD/DVD is not available for Mac computers. Here's how to do it from text commands and using a purpose-built software called WizDMG.
Run Transmac app as administrator, by right-clicking on its icon. Click on the File tab at the top, and select the option “Open Disk Image” to load macOS installer DMG file to the software. Find the DMG file loaded on the left side, right-click on it and choose to burn it to DVD. The third software which is to create a Bootable macOS Mojave USB Installer drive on Windows is TransMac. TransMac is software which is created for Windows platforms to create bootable USB or Format a USB for mac. Basically, TransMac is not free but it allows you to create bootable USB for mac for 15 days for free.
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DMG file is a compressed file format being used widely on Mac computer. Windows OS doesn't natively support DMG disk image files, so if you need to create a bootable USB drive from a DMG file, mostly for bootable Mac OS X or macOS installation USB, you need a special utility to help you complete the task.
There is also the possibility of converting the file into a format more suitable for Windows, which is the ISO file format for disk images. Considering the above, let's look at different ways to create a bootable drive from a DMG file on a Windows computer.
Part 1: Convert DMG to ISO and Make Bootable USB from ISO
Since Windows doesn't offer native support for DMG files, you can first convert the file to ISO. Why? A lot of easier to find an app for making a bootable USB from ISO file. The easy way to do this is to use Command Prompt. Don't be intimidated by the non-GUI environment even if you don't have any experience. If you follow the steps below, you can convert any DMG file to ISO and then create a bootable USB using the converted file.
Step 1: Open Command Prompt by typing cmd in the Run windows and hitting Enter.
Step 2: In the command interface, go to the directory in which the DMG file is saved. You can do this by using the 'cd' command followed by the file path, then pressing Enter. For example, if your disk image is in D: and Command Prompt is currently in 'C:', then type 'd:' (no quotes) and press Enter. If it is in a subfolder, type 'cd subfolder', and so on.
Step 3: Use the following command to convert the DMG file to ISO:
hdiutil convert /path/sourceimagefile.dmg -format UDTO -o /path/targetmage.iso
Step 4: Once the ISO file has been created, you can use a burning tool to create the bootable USB drive. To do that, continue with this guide.
Cons:
Part 2: Create Mac OS X Bootable USB Installer from DMG
Androidphonesoft DMG Editor is a powerful software application for Windows that will allow you to manage the non-native DMG format even if you have no experience. The interface is uncluttered, and you can even use the tool to view files, extract them, edit the DMG and even copy it to a disk. The burn function has one of the highest success rates in the industry, which makes this an ideal utility for our purpose.
Created by the talented team of developers at Androidphonesoft, DMG Editor is currently the most intuitive Windows app for handling Apple's disk image format. Each of its functions have been tested on various Windows versions, with different types of DMG files and on different PC brands. This thorough testing means no wasted DVDs or corrupted files. As long as your DMG file is in good shape, you can directly create a bootable disk.
Step 1 Install DMG Editor
Download and install DMG Editor on your Windows PC.
Step 2 Plug in USB Drive
Launch the application and click on the 'Burn' section. You will also see other modules such as Edit, Extract and Copy.
Step 3 Start Burning ISO File to USB
Now import the DMG file by clicking the 'Load DMG' button, and click on 'Burn'.
In a few moments, your bootable USB flash drive will be ready for use. Since you haven't done any conversion, you can use this directly on a Mac for program installation, which you cannot do with the first method.
Part 3: Create Bootable USB from DMG in Windows Via PowerISO
Another well-known disk image utility is PowerISO. Apart from being ideal for burning ISO files, it can also burn a DMG file to USB to create a bootable drive. There are some settings that you have to keep in mind when burning with this software, but it's easy to get the hang of it once you do it a couple of times.
Step 1: Download PowerISO and install it in your Windows PC. Launch the app and insert a USB drive into a free USB slot in your computer.
Step 2: You can import the DMG file directly by clicking on ‘Burn' in the toolbar or going to Tools >Burn. In the Burn window, select the DMG file from the Source File Gotomeeting download mac desktop. section.
Step 3:Now review the settings to select the burn speed. The default will be the maximum your hardware can handle, so you can reduce that. You can also choose to finalize the disk and verify it. Finalizing means you can't save any more files on the drive, but it primarily applies to DVDs and CDs. Choosing ‘Verify' will prompt the software to execute an additional process after the burning is done. Any errors in the bootable USB will show up at that point. Dmg jobs.
Step 4: Now click on 'Burn' and wait for the progress bar to reach 100%. Your bootable USB is now ready.
Cons:
The Bottom Line:
The second two methods are recommended if you don't have much experience working with DMG files, but DMG Editor will appeal to novices and experts alike. The clean interface and minimal user input means a lower chance of errors while creating the bootable media.
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How To Make Bootable Media
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I just bought my first MAC G4 Dual 450 from a friend (who bought a new G5). He gave me .dmg files of the panther disks 1-3 and the X code as well. I have now coastered about 10 disks trying to figure out how to burn a bootable CD so I can reinstall Panther to 2 40G disks (internal) instead of the 1 20G disk I got with the machine. I also have a 160G external Firewire disk and a Plextor PX-716 DVD/CDR burner. I can't seem to get this to work right. I am a Linux user and can burn bootable CD's from image files all day long, but this is just killing me and getting rather expensive. I have made sure to mount the dmg file for each of the 4 disks, tried just burning a data cd, then burned to an image and burned the image to cd, tried a mac volume, nothing seems to work. Yes I have made sure to hold down the C key after rebooting and putting in the new blank HD's. Also tried to option key to see what bootable device is there and with the 2 new blank HD there is nothing. All I see if I hold down C is a blue screen with a little folder with the MAC picture and then a question mark flashing back and forth...I am using Roxio Toast Titanium 6.0.3 to try to burn the CD's Can someone please, please help me so I can use my 2 new 40G HD's? Thank you VERY much in advance Rockstar/Michael Comments are closed.
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