Mac disk utility restore not enough space

You can change this later if you select the wrong volume. The volume you selected should be listed in the Source field. If you wish to change to a different source volume, select the desired source in the Disk Utility sidebar, or use the Image button to select a disk image file. Drag a volume to the destination field; once the green plus sign appears, you can drop the volume. To select a destination, drag the desired volume from the sidebar to the Destination field.

You can also drag a volume mounted on your Desktop to the Destination field. Warning : The next step will completely erase the contents of the selected destination volume.

A sheet will drop down, asking if you really want to completely erase the destination drive and replace its contents with the contents from the source drive. Click the Erase button to continue the restore process. The erase and restore process will begin; a status message and progress bar will appear near the bottom of the Disk Utility window.

When the restore is complete, the volumes will be remounted on your Desktop, and Disk Utility will remove the selected volume from the Destination field, leaving it empty. Preparing an image file for restoring can be done from within the Disk Utility app. The process scans the image file, calculates the checksum, and reorders the files within the image.

How to Use Your Mac’s Disk Utility to Partition, Wipe, Repair, Restore, and Copy Drives

Image File Limitations Scanning an image file has a few limitations that can prevent some. Generally, if the image file uses the compressed format it should sail through the scan process. If you need to, you can convert the image file format using the Convert command in the Disk Utility Image menu. Name required. Email required. Save my name, email, and website in this browser for the next time I comment.

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Leave this field empty. Directions above forgot to include an important step when cloning. I kept getting an error trying to restore to new SSD. Turns out the destination drive must first be formated, i. Move this volume to destination and click restore.

Erase process has failed. Click done to continue. Disk Utility Error FIX - Mac

Btw, I used the Restore option when holding down the Option key and powering on. I created a bootable clone of my Hard Diak in a MacBookPro and verified afterwards that it is bootable. So far, so good.

Restoring DMG to a smaller destination

I noticed the Restore… command while noodling around, then, looking for instructions, landed here. Selecting this entry should resolve most formatting issues. The indented entries are the volumes. This is important because when erasing the drive you will get different options depending on whether you have the volume or disk selected. Which is why selecting the non-indented entry is important when formatting the drive. What is that This is typical and not an issue when using the drive as NTFS.

What to Do When a Macbook Says Not Enough Space on Startup

For more technical information see Microsoft documentation - here. If you plan on using the drive for Mac only then you will want to erase the disk. If you will be going between Mac and Windows then there should be no issues. Apple requires at least MB for this volume which is why this error occurs. For more technical information see Apple documentation - here.

There maybe other ways to resolve this issue but the easiest way is to erase the disk and set it up with a GUID scheme. This will delete all existing volumes which will allow Apple to create their volumes with the correct amount of space. Remember if GUID is not an available option then Show All Devices in the upper left is not selected as shown in the beginning of the article.


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  • Why is the partition button grayed out? This was first seen in macOS If you hover over the partition button you can see the tooltip provided by Apple. If you are using it for Mac only then select a format specifically for macOS. If you have something open on the drive like a Disk Image or if something else is keeping the drive busy, you may see this error. Eject the Disk Image and try formatting again.

    If you believe there is nothing keeping the drive busy then simply try to format the drive again.

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    If that does not work then highlight the volume and click unmount. With the volume unmounted it should allow the process to complete. Once rebooted, reconnect the drive and try to format the drive again. What to do if nothing else is working? If you have access to another Mac then try the Erase process there.

    If you have access to a Windows machine then you can try to diskpart the drive there. Instructions for diskpart can be found - here.