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Mar 30, 2020 Starting with OS X Lion, Apple did away with DVDs and other media as a method of installing software and switched to a download model instead.Even so, it's still easy to create a USB installation disk for OS X Lion if you want to install Lion on a freshly formatted hard drive, if you're in an emergency booting situation, or if you need to repair your Mac's hard drive. I've got a Raw DD image created of a Macbook. I'm looking to mount it on another Mac to run Mac based VP software on the image. Here's what I've tried so far in terminal-hdiutil attach -imagekey diskimage-class=CRawDiskImage -nomount filename I keep getting- 'Image not recognized' Any help would be greatly appreciated. Thanks for your time.
Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk.
Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.
Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.
How to erase your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
- Select the disk that you want to erase. Don't see your disk?
- Click Erase, then complete these items:
- Name: Type the name that you want the disk to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- Scheme: Choose GUID Partition Map.
- Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.
How to erase a volume on your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
- Click Erase, then complete these items:
- Name: Type the name that you want the volume to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these:
- You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
- You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
- You received a message that your disk isn't readable by this computer.
- You're trying to resolve a disk issue that Disk Utility can't repair.
- The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
- The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
- Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended. - Are you about to install macOS High Sierra or later for the first time on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files. - Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer. - Will you be using the disk with another Mac?
If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
- Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
- Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
- Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
If your disk or volume doesn't appear, or the erase fails
- Shut down your Mac, then unplug all nonessential devices from your Mac.
- If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
- If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.
Learn more
- If you can't start up from macOS Recovery, you can use a different startup disk instead.
- If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.
Summary
When a hard drive becomes raw, you cannot access pictures, videos, office files and music from macOS. EaseUS Data Recovery Wizard for Mac is the best software for Mac Raw recovery. This easy-to-use software only takes three steps to restore lost Raw data. Read on to learn the detailed steps.
PAGE CONTENT:
- Use Mac RAW recovery software to recover data from RAW drive
- How to fix RAW partition on Mac
- FAQs about Mac RAW hard drive data recovery
![Mac os x disc image Mac os x disc image](https://i.stack.imgur.com/C8sV1.png)
Symptoms of Raw Drive/Partition on Mac
A hard drive that displays files as RAW means the Mac cannot properly read it as they drive may have become corrupted. The RAW file system is a system error due to virus infection, power outages, format failure, or improper system shut down. Generally, when the hard drive is shown as RAW, possible symptoms are:
- The file system is displayed as 'RAW'
- File names contain 'weird' characters.
- When you access files, it will warn 'Sector not found'
- You will be reminded of 'Disk is not formatted. Do you want to format now?'
Usually, the effective way to fix the RAW partition is to erase and format the drive with a new file system by rebuilding DBR, FAT, MFT, etc., so that RAW partition can be accessed and used again.
But as we all know, hard drive formatting will lead to data loss. Therefore, you need to first recover your essential data from the RAW drive with a professional Mac RAW recovery tool. After that, continue fixing the RAW disk by formatting.
The Solution for Mac RAW Data Recovery
Before you do anything to the drive, if the data on the hard drive is important or irreplaceable, it's best to stop using it immediately and turn to specialized RAW recovery software to get back the files in advance.
A wide range of supported file systems and availability of different scanning modes make EaseUS Data Recovery Wizard for Mac the best Mac data recovery software. With it, you can recover data from Mac hard drive, external drive, memory card, as well as recover deleted files from trash.
The software is easy-to-use and safe. You can completely trust it as it has so many users around the world. With simple 3 steps, you can restore all lost files from hard drive on Mac 10.15, 10.14, 10.13, 10.12, or below. Read on to recover RAW data on Mac.
Step 1. Select the disk location (it can be an internal HDD/SSD or a removable storage device) where you lost data and files. Click the Scan button.
Step 2. EaseUS Data Recovery Wizard for Mac will immediately scan your selected disk volume and display the scanning results on the left pane.
Step 3. In the scan results, select the file(s) and click Recover Now button to have them back.
Also read: Mac partition recovery: how to recover deleted or lost partition on macOS/Mac OS X
Mac Os X Disk Image
How to Fix Mac RAW Partition by Formatting
Now that you've successfully recovered files from RAW disk with EaseUS Mac RAW recovery program, you can try to repair the corrupted RAW partition. To fix a RAW disk, you can format it to any supported files system on Mac, including APFS, HFS+, HFS X, FAT16, FAT32, exFAT, and NTFS.
In this section, we will show you two ways to format the RAW file system to NTFS/FAT32 with ease. The solutions are applicable to format a RAW drive on HDD, USB, SD card, or memory card.
1. Format RAW Partition with Disk Utility
Step 1. Ibm odbc drivers for mac. Go to 'Applications' > 'Utilities' > Double click and open 'Disk Utility'.
Step 2. Select your RAW drive or other USB flash drives on the sidebar, choose'Erase'.
Step 3. Rename the RAW partition, choose the format as MS-DOS (FAT) for Format, Master Boot Record for Scheme. Then click 'Erase'.
Wait for the process to complete, then you'll get an empty new hard drive with FAT32 as the file system. You can reuse the partition for saving data again.
2. Format RAW Drive on Mac with Terminal Command Line
Another more complicated way to fix and format a RAW partition is using the Terminal command line. If you are a novice to Mac computer, you'd better use the Disk Utility to complete the formatting with simple clicks.
Step 1. Hit cmd + space to run Spotlight, type: terminal, and hit Enter.
Step 2. Type:diskutil list and find out the corrupted RAW drive.
Step 3. Type: sudo diskutil eraseDisk FAT32 MBRFormat /dev/disk2.
- sudo gives you user right
- Diskutil calls disk utility program
- eraseDisk commands to format
- FAT32 sets the file system
- MBRFormat tells disk utility to format with a Master Boot Record
- /dev/disk2 is the location of an external hard drive
Step 4. Wait for the process to complete. After this, you can type: diskutil list in command again to check if the formatting has been successful.
Conclusion
If you want to recover corrupted RAW files from a digital camera, SD card, or hard drive on Mac, EaseUS Mac RAW recovery software is a great choice. It is a professional and easy-to-use RAW file recovery tool. Besides, the software is also qualified to fix corrupted photos and repair corrupted MOV/MP4 files on Mac.
Instead of data recovery after hard drive corruption, avoiding RAW drive again and being at risk of data loss in advance is more useful. You can pay attention to the following points in the daily use of a computer:
- Install and upgrade the antivirus software
- Safely eject the external USB drive
- Avoid misoperation, such as sudden power outage
- Use the advanced file system, like NTFS
- Back up important data regularly
FAQs About Mac Raw Hard Drive Data Recovery
Here are the frequently asked questions related to RAW recovery for Mac. If you also have any of these problems, you can find the methods here.
What is raw drive recovery?
Mac Raw recovery is a type of data recovery. When the hard drive is crashed, or the file system has been damaged, raw recovery can help users recover most of the lost files on a hard drive, SD card, USB flash drive, or other storage media devices.
How do I restore raw disk?
Use EaseUS Data Recovery Wizard for Mac to restore RAW disk within three steps:
Step 1. Select the RAW hard drive where you lost data and files. Click the Scan button.
Mac Os Disk Image File
Step 2. EaseUS Mac RAW recovery software will immediately scan your selected disk volume and display the scanning results on the left pane.
Step 3. In the scan results, select the file(s) and click Recover Now button to have them back.
Is Mac Data Recovery Free?
The free version of EaseUS Data Recovery Wizard for Mac lets you recover up to 2 GB of data free of charge. It enables you to recover deleted or lost photos, videos, Word, Excel, PPT, and other files from all Mac devices and external storage media, like external HDD/SSD, fusion drive, USB drive, SD card, CF card, Digital Camera, Video Player, and more.
What is the best data recovery software for Mac?
Mac Os X Image
One of the best data recovery software for Mac is EaseUS Data Recovery Wizard. It can help you restore data in complex cases by supporting deleted file recovery, formatted recovery, RAW recovery, partition recovery, virus attack recovery, OS crash recovery, and other recovery scenarios.
Other best data recovery software for Mac you can try is:
Mac Os X Disk
- Disk Drill
- PhotoRec
- TestDisk
- Exif Untrasher