Make A Bootable Lion Installer Disk From A Dmg File
- The optimum time to make your bootable disk is early in the install process. Otherwise, you won't be able to get the DMG file you need without having to download OS X Lion all over again. And that's too time-consuming. If you did already install it, then follow Apple's Lion Recovery instructions to re-download OS X Lion again.
- 2019-10-18 Make a bootable image copy of OSX 10.8 Mountain Lion after downloading the App from the store but before installing on your drive. Copy the image to a local drive or make a bootable external disk.
- 2019-9-24 If you have the latest 'Install Mac OS X Lion.app' procured from the App Store, then you could use the InstallESD.dmg within that to make a universal installer (described elsewhere) - it will have all the drivers needed for any/all Macintosh machines that meet its hardware requirements.
- Make A Bootable Lion Installer Disk From A Dmg File Online
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- Make A Bootable Lion Installer Disk From A Dmg File Windows 10
To create a Lion DVD. Select InstallESD.dmg and then click on the Burn icon in Disk Utility.
About a month ago, we talked about creating a bootable USB of macOS on a Mac with the help of a free app called DiskMaker X. The app is very easy-to-use and is updated to support the newest version of macOS.
UPDATE: If you’re looking to prepare macOS Sierra or Mojave bootable USB, please refer to our new how to create macOS Sierra bootable USB from Windows guide for step-by-step directions.
Even though it’s always a good idea to prepare macOS bootable USB on a computer running macOS only, at times you might come across situations where you have no options but prepare the bootable media of macOS on a Windows PC. Take, for instance, your Mac machine is unbootable and you’re unable to fix the issue or re-install the OS using the Recovery Assistant. Or maybe, the Recovery Assistant isn’t appearing when you hold down the Option key.
Mac users who don’t have access to a bootable Mac machine to prepare the bootable USB of macOS can take the help of a computer running Windows operating system for the job. The only thing is that you must have the DMG file of macOS.
If you have the DMG file of macOS and a USB flash drive of size greater than 16 GB, it’s easy to prepare the Mac OS X bootable USB on a Windows PC. Simply follow the given below instructions to prepare your bootable USB of macOS on a PC.
Create macOS Bootable USB on Windows 10
NOTE: The guide was originally written to prepare Yosemite bootable USB but the guide is compatible with the latest macOS Mojave as well.
Step 1: The first step is to download TransMac software and install the same on a PC running Windows operating system. Even though TransMac is a paid software, the 15-day trial copy is good enough to prepare the bootable USB of Mac on your PC. Open dmg file in windows.
Make A Bootable Lion Installer Disk From A Dmg File Online
Step 2: Stick in the USB drive that you want to boot and install macOS from and backup all data from it, if any. The drive will be erased completely during the process of making a bootable USB.
Step 3: Launch TransMac software with admin rights by right-clicking on TransMac icon on the desktop and then clicking Run as administrator. Upon launching the TransMac software, the Trial reminder dialog will appear. Simply click Run button to continue using the software.
Make A Bootable Lion Installer Disk From A Dmg File Player
Step 4: Once TransMac is launched, in the left pane, right-click on the USB drive that you would like to make as bootable, right-click on the same, and then click Restore with Disk Image option.
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Click the Yes button when you see the warning message on your screen that the drive will be erased.
Step 5: Next, Restore Disk Image to Drive dialog will appear on the screen. Here, click the “…” button under Disk Image to restore to browse to the DMG file of macOS that you want to install using USB and open the same.
Finally, click OK button to begin preparing the bootable USB of macOS on your Windows PC.
Step 6: The TransMac tool, in our test, took a little over 90 minutes to prepare the bootable USB.
Once done, Restore Complete message will pop up on the screen. Close TransMac and safely remove the USB.
Make A Bootable Lion Installer Disk From A Dmg File Download
Step 7: Finally, connect the bootable USB to your Mac, turn on your Mac, hold down the Option key, and then select the USB drive to begin installing macOS. Good luck!
| http://subrosasoft.com/blog/2011/07/create-a-bootable-mac-os-x-10-7-lion-flash-drive/ |
| 1) Purchase and download Lion from the Mac App Store on any Lion compatible Mac running Snow Leopard. |
| 2) Right click on “Mac OS X Lion” installer and choose the option to “Show Package Contents” |
| 3) Inside the Contents folder, you will find a SharedSupport folder and inside the SharedSupport folder you will find the |
| InstallESD.dmg. This is the 10.7 Lion boot disc image. |
| 4) Copy InstallESD.dmg to another folder like the Desktop. To do so, simply click and drag the file to the desired location |
| while holding down the Option key. |
| 5) Plug in the flash drive and launch Disk Utility (/Applications/Utilities). |
| 6) Make sure the flash drive is properly formatted highlighting the flash drive at the left (make sure to select the device |
| and not the volume shown under it) and clicking the Erase tab across the top right. Then ensure that the Format drop-down |
| menu is set to Mac OS Extended (Journaled) and click the Erase button. Confirm the dialog ensuring that you want to erase |
| the device and all information on it (make sure you backup any existing information on the flash drive before this point). |
| 7) Select the Partition tab on the top right. |
| Using the drop-down menu for Volume Scheme, choose 1 Partition as the partition scheme. |
| Highlight the partition by clicking on it in the space it is shown below the Volume Scheme drop-down and then click on |
| Options underneath it. Select GUID Partition Table and click OK. This will allow the Mac boot from the drive. |
| You may now name the device in the Name textbox. Insure that Format is set to Mac OS X Extended (Journaled). When you |
| have finished, click the Apply button to format the USB device. A warning will pop-up asking if you are sure you want to |
| partition the media. Click the Partition button to continue. |
| 8) Click on the newly created volume listed under the USB device on the left. This volume will have the name of the device |
| you set in the previous step. Click the Restore tab at the top right. In the Source area click the Image… button. Select |
| the disk image InstallESD.dmg and click open (you may also drag-and-drop the disk image into the Source area). |
| In the Destination area, make sure that the USB device’s name is showing. If it isn’t, simply click and drag the volume from |
| the list at the left into the destination area. Click Restore and confirm the dialog informing you the volume will be |
| erased. You will be prompted to enter the admin password for your Mac and the process will begin. |
| The bootable USB device will be created and a progress bar will show the current status of the operation at the bottom of |
| the screen. |
| 9) When the operation is complete, you can verify that the flash drive is now bootable by selecting it and clicking the |
| Info button in the upper left corner of the Disk Utility window. Bootable status will show as Yes. |
| To boot from the USB device, simply hold down the Option key while your Mac is booting up. A screen will appear asking you |
| which volume you would like to boot the system from. Click on the OS X installer USB drive and the system will boot using |
| the USB stick. You will see faster boot speeds using the USB installer compared to a DVD installer disc. |