Image Resize Failed Disk Utility. Using the disk utility. Most users prefer to create and maintain them in disk utility as the command tool hdiutil which handles them is so complex.
To change partition size here you need to select the partition right click it and select resize partition. Although this article began by noting that the disk utility app is of little help in resolving the unable to create new partition on mac issue it can still be useful especially if you are using an older operating system. The review for image resizer for windows has not been completed yet but it was tested by an editor here on a pc and a list of features has been compiled.
To resize a disk image first close the image by ejecting it so it doesn t appear in the sidebar when you open disk utility.
Using the disk utility. Most users prefer to create and maintain them in disk utility as the command tool hdiutil which handles them is so complex. Retry your partition shrink with disk utility you can now retry the changes you want to make to your partition. Type a new size then click resize.