#CANT RESIZE MAC DISK IMAGE FULL#
#CANT RESIZE MAC DISK IMAGE SOFTWARE#
#CANT RESIZE MAC DISK IMAGE FREE#

The volume Untitled was formatted by newfs_apfs (945.241.4) and last modified by apfs_kext (945.241.4)

#CANT RESIZE MAC DISK IMAGE FREE#

Performing fsck_apfs -n -x -S /dev/disk5s1Ĭhecking the space manager free queue trees The specific APFS Physical Store being resized is disk5s1 Resizing APFS Container designated by APFS Container Reference disk6 This provokes a long sequence of replies, such asĪligning grow delta to 109,690,880 bytes and targeting a new physical store size of 209,674,240 bytesĭetermined the maximum size for the targeted physical store of this APFS Container to be 208,646,144 bytes Which tells you that the container’s identifier is disk5s1, and the command to grow its container will be You should then see a list of all mounted disks, within which will be your disk image, with an entry likeġ: Apple_APFS Container disk6 100.0 MB disk5s1 To list all mounted disks, so that you can find the correct name to use for the container. To resize the container, ensure that your disk image is mounted, then type Neither can you do anything in Disk Utility to resize that container to match the new image size. But open it in Disk Utility, and you’ll see something strange: although the image has grown in size, the single container in it hasn’t changed. Inspect that disk image now and you’ll see that it has changed size as a result. If you need more information about hdiutil resize, type hdiutil resize -help. This is usually followed by another few lines of rubbish before the command prompt returns. Resizing the disk image is performed using a fairly straightforward hdiutil command like The next step requires your disk image to be unmounted, so now is the time to do that, either in Disk Utility or using the diskutil eject command. Nx_kernel_mount:1461: : checkpoint search: largest xid 14, best xid 14 3īut should then state the minimum, current and maximum sizes of your disk image, and confirm that your intended size is OK. This may spit out a few lines of rubbish, such as It’s easy to check this using hdiutil in a command of the form If you have worked with hdiutil in the past, you may now be wondering whether this fault in Disk Utility is because the disk image has strict resize limits. The only solution must then be in the hdiutil command tool, despite its earlier warning that “hdiutil resize cannot resize filesystems other than HFS+ and its variants.” Thankfully, klanomath has worked out a solution here which is quite elaborate but appears to work on High Sierra and Mojave, with both regular and sparse disk images. It’s worth pointing out that if you repeated this but made the format of the disk image HFS+, resizing works absolutely fine. You can try changing the size of its container by repartitioning the image, but as the total size of containers can’t exceed the size of the disk image, that also gets you nowhere. You can try mounting the image and then resizing it: all that does is change the text in the error message. There’s no workaround in the Disk Utility app. You won’t even get as far as being invited to enter a new size, as Disk Utility comes straight back with an error. Now, follow Apple’s instructions for resizing that disk image using the Resize… command in the Images menu. To stop that, simply select your internal disk at the left, and it should behave more normally again.

This is likely to provoke another lesser bug in Disk Utility: it will now start showing bursts of the spinning beachball and be sluggish in response. Once it’s created, eject your new disk image. You can make its image format anything you like, including a standard read/write disk image or either of the sparse options. Use Disk Utility’s File/New/Blank Image… menu command to create a new disk image, setting its format to APFS, and its size to something reasonable like 100 MB.

#CANT RESIZE MAC DISK IMAGE FULL#

And I believe that this has been the case since the first full release of APFS in macOS High Sierra eighteen months ago.

But if you create a disk image in APFS format, Disk Utility has a problem: it can’t change its size. Most users prefer to create and maintain them in Disk Utility, as the command tool hdiutil which handles them is so complex.

#CANT RESIZE MAC DISK IMAGE SOFTWARE#

Disk Images are a popular way to deliver software and a great deal more.

Cant resize mac disk image