I want to restore my previous hard drive but obviously it won't fit on the new hard drive. Is it possible to restore the.dmg to the external hard drive where the.dmg file resides? If not, how do I restore these files? I have some very important files on there so I don't want to go testing something and then accidentally wiping that backup. DMG File Recovery – How to Recover DMG Files on Mac OS X. April 25, 2019 09:00 / Posted by Somei Liam. DMG or Apple Disk Images are used for software distribution over the Internet. It is useful to store disk images with optional data compression and encryption. Restore data from Mac, hard drive, memory card, flash drive and more.
If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required.
Many users are still looking for solution to install Mac OS X 10.7 Lion into their old devices such as iBook G4. In the below words, we show you how to quickly create an Bootable ISO files for Mac OS X 10.7 Lion install. In this video I'm going to show you how to install mac osx or restore mac with usb flash. Hello Everyone! I had this problem in a year but i managed to fix it with the newest OS X El Capitan. So, my OS X do not starts anymore. I run the recovery (Command + R) and I followed the article (Mac OS X v10.5, v10.6: How to back up and restore your files - Apple Support) I have made a new image from my hard drive (750GB, 2 partitions: Yosemite and Windows). But the solution for the restore does not work. I can not restore my data! Mac论坛mac软件苹果论坛Mac OS -8miu百度云-发米网 › 论坛首页 › MAC系统论坛 › MAC OS X 论坛 › MAC OS X 论坛档案区1 › MAC 小白 求助 Mac restore 问题 返回列表 查看: 50 回复: 0 MAC 小白 求助 Mac restore.
This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant.
These instructions will also work for Windows users, who are running Mac OS X on a virtual machine and need to upgrade to the latest version. For instance, to OS X Yosemite.
Things to know before proceeding
Before you dive into this guide, you’ll need a few things:
- A broken Mac computer with Mac OS X.
- A trial copy of the TransMac software.
- One high quality USB flash drive with 16GB of storage.
- A copy of Apple’s macOS (DMG file).
Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.
How to create Mac OS X bootable USB installation media
Before you can use TransMac, you may first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. To do this, you’ll need to use the Diskpart command-line utility on Windows.
Setting up GPT partition
Use these steps to set up a USB drive with a GPT partition:
Open Start on Windows 10.
Search for Command Prompt, right-click the top result and select the Run as Administrator option.
Type the following command to open Diskpart and press Enter:
Type the following command to determine the USB flash drive and press Enter:
Type the following command to select the storage and press Enter:
Quick tip: Theselect disk 1
command as an example, but you have to replace 1 with the number of the flash drive you want to use.Type the following commands to delete everything from the USB thumb drive and press Enter:
Type the following command to convert the drive into a GPT partition and press Enter:
Type the following command to select the new partition and press Enter:
After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.
Creating USB install media
Use these steps to create a bootable media to install Mac OS X:
Download and install a copy of TransMac.
Quick note: TransMac is a paid software, but it has a 15-day trial solution, that give us more than enough time to move the DMG files to the USB drive from Windows. (If you want to support the developer, you can purchase the full version.)Insert the USB drive that you’ll use to fix your installation of OS X. (Remember that all the data in the USB will be erased. Make sure you take off any important documents.)
Right-click the TransMac software icon and Run as administrator. (You’ll be prompted to Enter Key or Run, because we’ll be using it once, click the Run option.)
On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option.
In the warning dialog box, click the Yes button.
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.
Now, you’ll have to wait a long time. No kidding. It could take one or two hours to complete the process depending on your computer and other variables.
Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, holding down the Option key, and select the USB you just created to reinstall Mac OS X.
If you’re having issues trying to create a bootable media, you can get a USB flash drive that comes with Mac OSX ready to install.
Update September 23, 2019: This guide has been revised to make sure it includes the latest changes.
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For You
Aug 26,2019 • Filed to: Solve Mac Problems • Proven solutions
Do you know that mini heart attack you get when your Mac crashes or would not start? It is the worst feeling in the world, especially if you have a lifetime worth of work stored inside your machine. What should you do in these situations? As you are probably have been advised many times, backing up your data regularly is a great practice. For Mac users, setting up an OS X Recovery Disk would be beneficial when trouble strikes. For example, it is conducive to Mac file recovery while you find data lost.
What Is an OS X Recovery Disk?
The OS X Recovery Disk is a native but hidden recovery volume on your Mac hard drive. This feature can be used to start up your machine and perform emergency maintenance services such as repairing a corrupted drive by running Disk Utility, surf the Internet to assess the problem you might be experiencing or download any necessary updates. You can also use the OS X Recovery Disk to reinstall your operating system and restore lost data from Time Machine backup.

Part 1 How to Restore Mac with Recovery Disk Mac
Now that you know that your machine has a built-in recovery tool, you may ask 'How to use OS X Recovery Disk?' The feature allows you to do the following options:
- Use Time Machine backup to restore your Mac.
- Reinstall Mac OS X with recovery disk.
- Get help online or check your internet connection.
- Use Disk Utility to verify and repair connected disks.
Here is how to repair Mac disk and recover Mac with OS X Recovery Disk:
- To put your Mac into Recovery Mode, restart your machine and hold down the 'Command + R' keys on your keyboard simultaneously. Continue to do this until the Apple logo appears.
- When your Mac has started up, the OS X Utilities window will appear and prompt you to choose one of the four options listed above. (Note: if you do not see this, but instead see a login page, you will need to restart your Mac and do the whole process again).
- Click 'Disk Utility' and choose the drive you want to repair on your Mac. Open the 'First Aid' tab. To check the problem your Mac has, click the 'Verify Disk' button. Click the 'Repair Disk' button to start fixing this button.
Part 2 How to Create an OS X Recovery Disk
Since OS X Mountain Lion, everything went digital and maintenance-minded. Mac users could no longer depend on physical recovery disks to help them fix any problems on their machines. But what how can you access this hidden partition if something goes wrong with your hard drive? You can always connect your machine online and initiate the OS X Internet Recovery feature, but realistically, you may not always have an internet connection. This method will also not work if you had upgraded an old Mac to run on a newer version of OS X.
In these situations, having your OS X Recovery Disk easily accessible on an external USB drive or SD card would be beneficial. It is really simple. Read on to learn how to create OS X Recovery Disk that you can easily access anywhere, anytime. Before you start, here are some of the things you need to adhere to:
- To create an OS X Recovery Disk, make sure that your machine is at least running on OS X Lion or Mountain Lion and that there is an existing Recovery System on its startup volume. If you have a newer Mac, use Internet Recovery to get the system online.
- An external USB drive or SD card with at least 1GB free space.
Once you have made sure both requirements are duldilled, follow the following steps to create an OS X recovery disk:
- Download the Recovery Disk Assistant from the Apple website if you do not have it already in your Applications/ Utilities folder.
- Wait until the download is complete and double-click on the file which should be named 'RecoveryDiskAssistant.dmg'. This will create the Recovery Disk Assistant.appfile - drag it into your Applications folder.
- Attach an external hard drive or USB stick and launch the Recovery Disk Assistant. Agree to the terms and conditions and wait until the software detects your external drive.
- Select the drive you want to use to create OS X Recovery Disk. Click 'Continue'. (Note: all data in the selected drive will be overwritten so that the wizard can install the needed data to make the external hard drive or USB stick into a recovery disk.)
It will take some time for the process to complete. When the software prompts you that it is done, click on the 'Quit' button. Eject the new recovery disk and keep it in a safe place. You will be able to use the disk when you need it the most. It is also a good idea to update this disk regularly.

Part 3 How to Recover Data on Mac Hard Drive
How do I recover files on my Mac for free?
If you just want to recover deleted or lost files from Mac hard drive, you can rely on a free data recovery program to help you do that. For example, Recoverit Free Mac Data Recovery. This file recovery freeware for Mac is dedicated in recovering data on Windows or Mac computer. If you want to retrieve data from an external device, like external disk or memory card, connect it to your computer and the stored data can also be recovered.
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Recoverit - The Free Software for Mac OS Recovery
- Recover documents, photos, videos, emails and more from Mac hard drive.
- Recover 1000+ types and formats of files in different data loss situations.
- Scan and preview the files before you recover them from all storage devices.
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Video Tutorial on Windows and Mac Hard Drive Recovery
This free hard drive data recovery software is easy to use and user-friendly. Watch the video and you can get 3 simple steps to recover your data from hard drive.
3 Steps to Recover Files from Mac Hard Disk
Download Recoverit Free Data Recovery and take the next 3 steps to recover Mac hard drive data for free right away.
Select the recovery disk
Scan the Mac recovery disk
Preview and recover data
To recover data from a Mac hard disk, please select the hard drive where you want to restore Mac data. Click the 'Start' button to move forward.
Recoverit Mac Disk Recovery will start an instant and all-around scan on the recovery disk. All the lost, inaccessible or deleted files on Mac will be shown gradually.
Once the scan ends, all the scanned files will be listed according to the file formats. You can preview the files, select the wanted ones and click 'Recover' to get them back.
Having a built-in recovery solution is great, especially when you tend to lose or misplaced recovery disks. It would be great to learn how to use it and have a copy of it stored outside the machine so that you will be able to access it when you cannot do it straight from your computer. Fail to do it? Only want to recover data? Recoverit can help you. Download it and recover lost files for free.
Note: Recover Lost Mac Data under Mac OS X 10.13 (High Sierra)
Due to macOS High Sierra (macOS 10.13) requirement, Mac users are not allowed an access to the built-in system drive from any apps. Therefore, if you need to restore lost data from the system disk under macOS 10.13, please 'disable System Integrity Protection' first.
How to disable 'System Integrity protection'? Please follow the steps below.
Step 1On hearing the startup chime, reboot the Mac and hold down 'Command + R' keys simultaneously to boot OS X into Recovery Mode.
Restore From Dmg Os X 7
Step 2When the 'OS X Utilities' screen appears, pull down the 'Utilities' menu at the top of the screen instead, and choose 'Terminal'.
Os X Base System Restore
Step 3In the 'Terminal' window, type in 'csrutil disable' and press 'Enter' then restrart your Mac.
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What's Wrong with Mac
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