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Some Mac drives may be formatted with the HFS+ file system — some drives marketed to Mac users may even come pre-formatted with HFS+. Windows can’t read this file system by default, but there are ways to read that HFS+ drive from Windows.
What if, your external hard drive turned write protected on Mac? Yes, this happens when your external hard drive is formatted with NTFS file system. To make it writable on Mac, you need to reformat it. But the concern is data stored on your external drive as reformatting removes all the data present on it. Therefore, here we have explained the techniques which you can use to enable read write on read only drive without reformatting it.
Removing Write Protection on External Hard Drive without Formatting-
Method #1: Edit Preference File
- Go to Terminal and type nano etc/fstab
- fstab opens hidden file which is use to set user authorization on disks
- Then, write the following line into file - LABEL=DRIVENAME none ntfs rw,auto,nobrowse
- Here DRIVENAME indicates name of the read only drive
- Then, hold down Control + O key. It exits you from nano
- Now, detach and attach your external drive back to Mac computer
Method #2: Download FUSE for Mac OS
1. Install Homebrew software on your Mac OS. To install it on your Mac, go to terminal and type –/usr/bin/ruby -e '$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)
2. After completion of installation, next step is to install NTFS-3G package. For installing NTFS-3G package type following command in the Terminalbrew install ntfs-3gThen, run this command brew cask install osxfuse, to check whether you have already installed FUSE package or not
Unfortunately there is no such application in Windows to read MAC files on an external hard drive. However, I would suggest you to find any third party application using your favorite search engine and see if it helps. Unfortunately there is no such application in Windows to read MAC files on an external hard drive. However, I would suggest you to find any third party application using your favorite search engine and see if it helps.
3. Then, restart your Mac computer and again run NTFS-3G package, so that you can use external drive on Mac which is formatted with NTFS file system
4. Whenever you want to mount a drive to read write, run the command mentioned below-sudo mkdir /Volumes/NTFSsudo /usr/local/bin/ntfs-3g /dev/disk1s1 /Volumes/NTFS -olocal -oallow_other
These two options enable you to write on external hard drive without formatting it. In case, it won’t fix your problem, then you have to reformat the drive. Hence, before reformatting it, use Remo Data Recovery Software for Mac to restore data from your external hard drive. Once you get back all your data from external hard drive, you can easily reformat it for further use.
Recovering Data from Write Protected Mac External Hard Drive using Remo Data Recovery Software for Mac-
Remo Mac Data Recovery software scans the entire external hard drive and locates all the data. You can use this software to retrieve files from various brands of external hard drive such as, Western Digital, LaCie, Buffalo, etc. It helps to restore photos from Mac external hard drive, also you can use this software for recovering video, audio, compressed files, etc. This application is compatible with all versions of Mac OS X including macOS High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Snow Leopard, Mountain Lion, etc.
Complete Guide on Data Recovery from Read Only External Hard Drive on Mac without Formatting:
Download Remo Recover Mac Pro edition on your Mac system. Install by following on screen instructions. Then, attach your external hard drive to the computer on which you have installed recovery software. Now, launch your application for initializing recovery process.
Step 1: When home screen appears, click on Recover Drives option followed by Volume Recovery
Note: If you have already formatted your external drive, then select Formatted/Reformatted Recovery option
Step 2: When it displays list of drives, pick the drive which represents secondary disk and click on Next button
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Step 3: It scans and shows you a list of recovered files
Step 4: Select required files and save them to any location of your choice
Once you get back all your data from external hard drive, reformat it for removing write protection from the external hard drive. Here are the steps for reformatting your Mac drive-
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- Attach your external hard drive to Mac computer
- Navigate to Applications > Utilities
- Select the drive from the left hand side of Disk Utility and click on it
- Select the file system to MS-DOS(FAT) and hit “Erase” tab
- Choose “Mac OS Extended (Journaled)” from pop up menu which is present next to Format button
- Select Name and click on Format option
Now, you can able to write on your Mac external hard drive. You can even use Remo Mac Data recovery software to restore data from reformatted external hard drive on Mac. Even when you didnt find data on time Machine, you can still recover your data after from Mac after Time Machine fails with the aid of this Mac Recovery tool. It supports all latest verions of Mac OS including High Sierra.
Active6 months ago
I have two hard drives that were set up as a RAID 1 set on a Mac. My Mac died, and I replaced it with a PC running Windows 7. I can't seem to figure out a way to read the data from my disks.
I tried MacDrive, which worked great for non-RAID disks, but it doesn't see either of these disks at all.
These disks are in a Rosewill 8-bay external box, which comes with a utility called SATARAID5. The problem is, that software doesn't run under Windows 7.
Does anyone have any ideas on how to get to this data? I don't care if I end up with a RAID set or not. I just need the files.
gcoatesgcoates
3 Answers
RAID storage formats (beyond simple mirroring) are typically proprietary -- I'd recommend borrowing a Mac temporarily to read the data off the array.
Oops, just noticed you did mean RAID 1 mirroring! That's odd. The software RAID must have written weird metadata to the drives, which is not typical for mirrors.
Perhaps:
http://www.dtidata.com/resourcecenter/2009/06/08/converting-raid-1-to-single-drive/
One, many RAID cards store meta data at the front of the drive, usually the first 128 sectors of the drive are reserved for the RAID card to use. Information like drive state, time of last boot, size and other information that is important to the RAID card is stored there If, however, the RAID card is not the primary hardware interface but instead a standard IDE port then the BIOS has no way of interpreting vendor specific data. In other words the BIOS looks at sector zero in the boot sequence, tries to find a Master Boot Record, then execute any boot it may find. The problem with this drive is that the MBR is 128 sectors down the drive since the meta data is stored in that area. Knowing this, we can trick the BIOS into skipping the meta data and pointing right to the OS boot record.
Jeff AtwoodJeff Atwood17.8k29 gold badges92 silver badges116 bronze badges
Windows doesn't read Mac RAIDs. It has nothing to do with your version of windows or how you RAIDed them. The way the RAID is setup on a Mac is differently to a RAID setup on a Windows machine, therefore Windows has no clue what to make of it. If anything it may detect that there are two drives, but you won't see that they are RAIDed nor can you access them. It's simply one of those compatibility issues that Windows hasn't addressed.
FifiFifi
Wouldn't it be possible to do a dd dump of the data on one of the mirrored drives in Linux (backing it up on another drive as a file). Then you can use dd again to write everything back to the same drive except you start at 128 in the dump and 0 on the hard drive. Then use a hex editor and Apple's HFS+ tech docs to offset the pointers by 128 sectors. You might have to shift data at the end of the drive also since that is also reserved. The extra space you will have between the end of the data and the reserved data at the end of the drive you can just fit with random data or zeroes. That way you pretty much rebuild it back to how it would be if the RAID software never added those 128 sectors. I'm not sure how much work this would be and what the technological abilities of the original poster are. Being a Software Engineer I would def give it a go if I needed to get the data back. Especially since you don't lose anything by trying since you can always dump everything back to the drive from the original dd dump
MarcinMarcin3,3441 gold badge15 silver badges22 bronze badges
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