Mac Can T Copy To External Drive

Step 2: Move your iTunes Library to an external hard drive. Quit the Music app on your Mac. Connect your external hard drive to your computer using a USB cable. Click on Finder and highlight the external hard drive. In the example, it's called Music. In a separate window, select your Mac's hard drive. Click on the Music folder.

I have Sony external hard drive HD-E2, and it was working fine; I could save files on it and copy files from it. But then, suddenly, I was only able to read from it. I find it odd since it was working great for almost 4 months.

  1. Get a second external drive and regularly make a copy of the data from the first external drive to the second one. You can do this manually by dragging and dropping files, but you’ll probably want to use an application that will “sync” the contents of one drive to an external drive.
  2. How To Copy Files From macOS To USB External Hard Drive In Command-Line. Open a terminal and run the command cp -R Documents /usb. The -R parameter will copy all the subdirectories under the Documents directory to the USB external hard drive. But above command may raise an error message such as usb/Pics: No such file or directory.
  3. In fact, the external USB drive is not formatted for use with your Mac. The drive is formatted as NTFS which is normal in a Windows environment. While OS X is able to read from a drive that is formatted at NTFS, it cannot write to one. You will get a warning saying that the drive cannot be modified. External Hard Drive in a read-only state.

My laptop is MacBook Pro.

However I started to have this problem after upgrading to El Capitan MacOS.

Could this be somehow related or relevant to the problem?

How to fix this problem?

Is this a good question?

Comments:

I have a WD Passport HD with 4TB. When I bought it, I partitioned it, so that I could use one partition for Time machine, and the other for extra files. Now the Time Machine partition is writable, but the other partition is readable only. I cannot copy files onto it anymore. It may be due to an upgrade in my OS. I’m running High Sierra. I’ve tried to change permissions in the INFO section of the partition, but everything is greyed out. How can I get read and write permissions without having to reformat the whole HD? Thanks for your help.

I have an intel tower that has a write disk drive. I have put a disk and I am unable to save files to the cd drive.

Yesterday my seagate 4T portable had strange sound like engine metal scratching , today sudden death, so bad seagate quality . i will never buy seagate in my life

After scan disk successfully, some movies file still cannot copy out

maybe due to bad sectors or 1 of the pin heads dead

Mac Can T Copy To External Drive

this seagate 4T portable is 3 months ago given by seagate recovery lab

When I copy files from macOS X to a USB external hard drive disk with both command or drag and drop action, the operation can not be processed. After some time investigate with google, I finally found the reason. This article will tell you how to resolve can not copy files from macOS to USB external hard drive disk issue.

1. Format The USB Disk With ExFat File Format.

The main reason for this issue is macOS can only read NTFS format files but can not write files to NTFS disk. So if the USB disk is NTFS format, then the copy and paste operation can not be operated. So we should change the USB Disk file format to others such as FAT or ExFAT. And ExFat is a more good choice.

1.1 Change USB Disk File Format Steps.

  1. Open macOS Finder —> Applications —> Utilities —> Disk Utility.
  2. Select the USB disk in the left panel.
  3. Then click the Erase button at the top of the right panel. Select ExFAT in the Format drop-down list and begin to format.
  4. After the format process complete successfully, you can copy files from macOS to USB disk successfully.

2. Install NTFS-3G To Make MacOS Support Read-Write Microsoft Windows NTFS File System.

Mac Can't Copy To External Drive Without

  1. Open a terminal and run the command $ brew install ntfs-3g to install NTFS-3G.
  2. Unmount the existing NTFS format partition if needed.
  3. Create a directory as the mount point volume label for the NTFS partition.
  4. Run /usr/local/bin/ntfs-3g command to mount the NTFS disk partition with the above mount point manually in read-write mode.
  5. You can also run the /usr/local/bin/mount_ntfs command to mount the NTFS disk partition as below.
  6. Learn more at NTFS 3G Official Github Website.

3. How To Copy Files From macOS To USB External Hard Drive In Command-Line.

Mac Can't Copy To External Drive

  1. Open a terminal and run the command cp -R Documents /usb.
  2. The -R parameter will copy all the subdirectories under the Documents directory to the USB external hard drive.
  3. But above command may raise an error message such as usb/Pics: No such file or directory.
  4. This is because the USB external hard drive is mounted under /Volumes folder, so you should add the /Volumes directory before USB disk name when you run the cp command.

Mac Cannot Copy Folder To External Drive

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