Hdiutil compact. On occasion I perform an hdiutil compact to reclaim HD space. Disk images are files that can emulate physical disks and are commonly used for software distribution, file backups, and data management. Now my question: Is it safe to abort (with ctrl C) a compacting operation, or could that cause damage to the image? Update: I was running LenovoEMC's Storage Manager in another window and had a webpage opened to the ix2-dl drive. sparsebundle"). sparsebundle[/color] Starting to compact… Feb 15, 2007 · This utility basically runs a powerful UNIX shell script called hdiutil compact to help you compress your sparse disk images. This happens because only a single system can have a disk image mounted at once, otherwise corruption could/will occur, but the hdiutil uses the DiskImages framework to manipulate disk images. Compacts don't reclaim the difference for me. Nov 2, 2008 · I am not used to using Terminal, so a GUI would be great (especially when I don't know the actual written 'path' for the Time Capsule) but I did find this from MurphyMac. May 11, 2020 · Detach the image hdiutil detach /dev/disk3s2 Then I tried to shrink the disk image from the command-line, but neither hdiutil compact, not hdiutil resize worked (errors) Then I tried to resize with Disk Utility, but it didn't work too (disk utility claimed it was done, but the size didn't change at all) Finally, if you're using an encrypted sparse bundle, you should compact the sparse bundle using hdiutil in order to free newly unused space. The rest of the verbs are: help, info, load, checksum, chpass, eject (historical synonym for detach), flatten, unflatten Jun 14, 2016 · If a sparse image takes up more space than the data it contains, that space can be reclaimed with the Terminal command hdiutil compact path/to/file. sparseimage, as explained in answer to Shrink a . Using the Workflow 1. MoJo:~ ravenb$ hdiutil compact "/Volumes/Time Capsule/Anton’s MacBook Pro. This explains why, and fixes Spundle to get over it. sparseimage -format UDTO -o /var/tmp/macos. Yes I have unmounted it before compact. imagesparse file, i should resize it to its real usage. 4 GB diskimages-helper: cannot compact filesystem because it was not unmounted cleanly. High Sierra (10. Do the two Oct 13, 2009 · I am finding conflicting information about sparse disk images. 1 试试这个： hdiutil compact image. Dec 17, 2024 · The hdiutil command is a versatile utility for macOS users that facilitates the creation and management of disk images. Most of the web pages that I found during searching were related to problems with Mar 4, 2016 · I wanted to reclaim the free space using hdiutil compact (). Jan 30, 2008 · So I finally tried to resize the sparsebundle via hdiutil without success. It stands for "hard disk image utility" and is used for creating, manipulating, and mounting disk images. So, the solution is to compact the TM backup sparsebundle in Terminal with this command: hdiutil compact yoursparsebundlefilename Try that and post back with your results. It should look something like this hdiutil compact /Volumes/Time\ Machine/MacBook\ Pro\ 16\ M1\ Max. The rest of the verbs are: help, info, load, checksum, chpass, eject (historical synonym for detach), flatten, unflatten Jun 1, 2016 · Hi all, Using EL CAP 10. Is there a better method that either shrinks the DMG to size or creates it size? Dec 9, 2020 · DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. 9 on a newly purchased MacBook Pro Retina (16 GB/1 TB/2. I've been doing this for a critical local repository I do not wish to host on a remote server, yet had to make sure I didn't lose it while still being usable and up-to-date in case of hardware loss. sparsebundle/ 再： hdiutil detach XJJ_PASSWORD. View in context 3 replies Top-ranking reply HWTech Level 9 61,520 points Sep 8, 2019 4:52 PM in response to ---In2Ndo---__ Apple: hdiutil: compact failed Function not implemented (2 Solutions!!) - YouTube Mar 28, 2007 · You may notice the output includes a ‘. com. dmg I believe it depends on how the DMG image was initially created. 3 GB of test files into one, then deleted the folder containing them. You were presented with a the option of "Skip" or "Continue. cdr’ extension on the iso file, but you’ll want to change that to just . Common verbs include attach, detach, verify, create, convert, and burn. Mar 24, 2010 · I have a Drobo to which I backup five drives using SuperDuper as sparsebundles. This isn’t too different than burning them through Terminal, and you can use either the hdiutil tool or dd command. Be sure to unmount the disk image volume if it is already mounted. 21 GB is used inside the volume. As a result, I went to google to look for solutions and I found the code I entered in terminal. sudo hdiutil compact /Volumes/DMC-12/California. Just putting this answer here for anyone who runs into a similar issue. May 18, 2020 · Among the many complex command tools, hdiutil, for working with disk images, has to be one of the most difficult. it. Just drag & drop the sparsebundle into the window. Normal behavior, especially with an encrypted sparseimage. patreon. x, each time a user logs out, the OS offers to compact the home directory/sparseimage to recover unused space (presumably using the hdiutil compact [image] command behind the scenes). sparsebundle hdiutil: compact failed - Resource temporarily Dec 20, 2023 · Intro hdiutil is a command-line utility on macOS that allows users to create, manipulate, and convert disk images. Jun 7, 2012 · To compact (image size stays the same): hdiutil compact ~/Documents/filename. If you don't know what a sparse disk image is, then you likely don't need this application yet. In this situation, the only thing to do is to fire up a nice hdiutil feature, compact: osx: root# [color=green]hdiutil compact Time\ Machine. com/roelvandepaarWith thanks & praise to God, and w Under Mac OS X 10. iso, this is easily done with the mv command as follows: mv imagefile. However to 'free up' the space occupied by the files, you need to; compact a sparse bundle by running the following terminal command sudo hdiutil compact /path/to/sparsebundle put the correct unix path to the sparse bundle in the command. I now read that this field specifies the The issue you are going to run into is that even if you prune backups and limit their total size, the sparsebundle isn't going to shrink on its own. Really - if hdiutil compact doesn't reclaim space, then your filesystem is possibly wedged or damaged. iso diskimage. an easy way to get it is to drag the bundle to the To shrink a dynamically growing drive image (the parameter -stdinpass is need for encrypted images): Sparsebundle, such as the image file used for Time Machine backup over network, doesn’t shrink even when the content has reduced in size. Unfortunately the compact operation cannot be done while the image is mounted, so I thought the best chance was on system startup before mounting it. sparsebundle Sep 8, 2021 · Is it safe to cancel hdiutil compact? A sparse image is a type of disk image file used on Mac OS X that grows in size as the user adds data to the image, taking up only as much disk space as stored in it (quoth Wikipedia). I'm fairly Dec 17, 2021 · As a workaround to this issue, I want to use the hdiutil to create a blank image in the current directory. Also make sure “Plug-in for:” category says “Finder”. hdiutil(1) BSD General Commands Manual hdiutil(1) NAME hdiutil - manipulate disk images SYNOPSIS hdiutil verb [options] DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. The rest of the verbs are currently: help, info, burn, checksum, chpass, erasekeys, imageinfo, isencrypted, mountvol, unmount,plugins, udifrez, udifderez, resize, segment, makehybrid, and pmap. Spundle is a new app which provides a convenient wrapper for three of its functions on sparse bundles: their creation, resizing and compaction. You don't need to have any prior technical knowledge or programming skills to use this tool Jul 22, 2025 · An AppleScript application (applet/droplet) to run the UNIX shell script hdiutil compact to compress sparse disk images. If more space is needed than is referenced by the hosted filesystem, hdiutil resize or diskutil (8) resize can help to grow or shrink the filesystem in an image. HDIUTIL(1) BSD General Commands Manual HDIUTIL(1) NAME hdiutil -- manipulate disk images (attach, verify, create, etc) SYNOPSIS hdiutil verb [options] DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. hdutil detach is to "detach a disk image and terminate any associated process" (from the man page). sparsebundle但是，正如手册页所解释的那样，它只回收完全未使用的带文件，所以在我的例子中它说：Reclaimed 0 bytes out of 90. cdr # Remove the temporary sparse image. Apr 27, 2019 · sudo hdiutil compact $@ </dev/null hdiutil compact $@ </dev/null hdiutil compact $@ sudo hdiutil compact $@ all with the same result. sparseimage # Rename the optical disk image. 45 GB of storage, but when mounted, Disk Utility (among other things) reports that only about 2. When I first set this up I read that the "Size" field in Disk Utility has little meaning for a Sparse Disk Image as the image grows as required. hdiutil makehybrid -iso -joliet -o diskimage. ) because those are @johanneswuerbach actually I've found a command to compact disk image - sudo hdiutil compact root-volume. Sep 2, 2010 · Anyone know why you can not run hdiutil compact on the sparse images on the server? I know there is a few users that have backups that need to have this done but each time I get a hdiutil create -size 50m -fs HFS+ -volname Widget /path/to/save/widget. Apr 26, 2023 · Describe the issue Virtual Machine is Debian, has only one RAW disk image on a separate partition on internal disk. sparseimage" Why does it return an error message ? Except for the «do shell script» command, this is the command I inserted in Terminal and it works … Running it as a SS, it returns an error message. An Automator service to run the UNIX shell script hdiutil compact to reduce the file size of sparse disk images and bundles. hdiutil provides a variety of functions related to disk images, and it’s a powerful tool for managing disk-related tasks on a Mac. sparsebundle that was for 2GB - then I almost filled it up - then I deleted 50% - then ran the terminal command - it Reclaimed 0 bytes - so I deleted everything inside and reran the command - still it Reclaimed 0 bytes Q How do I get this working? ------- how do I reclaim space from sparse bundle? I went to terminal and typed: hdiutil compact /Users/me Oct 28, 2019 · 功能类似的工具hdiutil diskutil hdiutil创建磁盘镜像文件12345678910111213141516171819202122232425262728293031323334353637# sparse-band-size 后面值中 hdiutil compact Torrents. 2. ) Also, you usually need to quote a path when using a shell script. sparseimage -format UDTO -o /tmp/ElCapitan. Try something like this: choose file with prompt "Compact this sparse disk image:" without invisibles set diskImage to POSIX path of result do shell script "/usr/bin Apr 27, 2020 · An efficient means of storage with many uses, but riddled with bugs and shortcomings. May 28, 2009 · 有没有可能“碎片化”一个稀疏的捆绑图像和回收(大部分)的自由空间？这里是背景:我正在使用稀疏的包，并且时不时地想从它们中回收空间，所以我运行：hdiutil compact image. sparsebundle/ 或者 点 finder 的推出按钮 Nov 4, 2023 · What is the most recent version of macOS with an hdiutil version that can compact sparsebundles containing HFS+ disk images? The images in the apps I distribute are larger than they need to be, but hdiutil in Ventura and Sonoma can't compact them. So, back to my original question: Does anyone have any ideas why "hdiutil compact <sparsebundle name>" would NOT return the free space? Apr 18, 2022 · 使用 hdiutil 进行压缩的时候出现： hdiutil: compact failed - 资源暂时不可用 解决方案： 先： hdiutil attach XJJ_PASSWORD. Note that if you're on a laptop that is not plugged in, you may get this ridiculously cryptic message: <code>hdiutil: compact failed - Function not implemented</code> Adding "-batteryallowed" to the invocation should fix that. Aug 14, 2021 · Apple: hdiutil compact failed - internal errorHelpful? Please support me on Patreon: https://www. They are called 'bands'. Basic Usage create I wanted to reclaim the free space using hdiutil compact (). iso Or 2. dmg 但是正如你在 hdiutil 手册 中所看到的： Depending on the location of files in the hosted filesystem, compact may or may not shrink the image. The path and file hdiutil(1) BSD General Commands Manual hdiutil(1) NAME hdiutil -- manipulate disk images SYNOPSIS hdiutil verb [options] DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. If a sparse Oct 25, 2009 · The Disk Image - is it currently compressed already and if so, did you use the default offered by Disk Utility? You can find out in Disk Utility or by running hdiutil imageinfo /PATH/To/DMG | grep 'Format'. So, deleting 10GB of data from your sparsebundle may only result in, say, 6GB of bands deleted when you compact. Don’t open it, instead enter the hdiutil compact in your terminal followed by the sparsebundle path. sparsebundle'" do shell script "hdiutil compact DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. It provides various functionalities for disk image management and acts as a Swiss Army knife for handling disk images on Mac machines. Give it a name like “Compact Sparse Image”. The sparse image file is taking up a bit over 400GB Apr 11, 2015 · You can reclaim space in a sparse image (e. Then you just need to press "Return" in the Terminal to activate the command. 0 external HDD to back-up my iTunes library and my User account folder. Basic Usage create hdiutil uses the DiskImages framework to manipulate disk images. Apr 27, 2020 · How to delete space added through hdiutil create -size 20g -fs APFS test2. You'd probably be better off just starting your backup anew, particularly if it's old enough that the filesystem in the sparesebundle is HFS+ This worked for me as well, very useful. Forum discussion: I am using a SparseImage file on an LaCie 500GB USB 2. (Takes awhile. If you want to learn more, please launch the Disk Utility and search its help for "sparse disk image". # hdiutil compact backup. when files deleted in it): hdiutil compact /path/to/sparseimage hdiutil: compact failed – Function not implemented When compacting a sparse image with the hdiutil compact command, it fails with the message hdiutil: compact failed – Function not implemented. sparsebundle -batteryallowed however it does not reclaim any size back. Jul 30, 2011 · i have to try, but if you use hdiutil compact and drag your xxx. Any idea as to how to correct it? PS the command works fine in Terminal if run directly from there. I'd like to save the file if possible, but remove the media files from it (movies, music, etc. compact reclaims unused space in sparse images. Two more things: Aug 17, 2022 · If you try compacting a sparse bundle, Spundle and hdiutil could return error 1. Fsck show NO problems so I don't believe its corrupted and, as TM using the files system as the database (no external database in the image) I can't see how this is corrupted. sparsebundle file (actually it’s a directory). cdr The first method is really quick while the second method takes quite a long time. After closing these applications, I did a full shutdown and restarted. sparseimage hdiutil resize -sectors min /var/tmp/macos. However, this popped up: I never had this problem come up before when resizing my partition. Now, I want to know what the difference is between the 100GB and 200GB sparsebundles, and how I can reclaim the space in the 200GB test2. Mar 17, 2012 · This appears to be a bug in Time Machine, in that even though it removes old backups, it doesn't actually clear the space in the sparsebundle they occupied. sparseimage. Aug 30, 2016 · hdiutil compact /Volumes/Backups/Xxx\’s\ iMac. Pastebin is a website where you can store text online for a set period of time. # Rename the ElCapitan ISO image and move it to the desktop Hdiutil convert /tmp/ElCapitan. Common verbs include attach, detach, verify, create, convert, and compact. Nov 7, 2007 · For about 40 megs of documents, my local iDisk sparsebundle is 25 gigs! Something has clearly gone wrong with this process. Jan 12, 2005 · i have these dmg backups of my MP3 collection and some are over the DVD size, so i'm deleting some from teh read/write image but it's just freeing up space on the image, not reducing it's size. You can mount, unmount, create, resize, verify, and even burn images onto discs. 13. You'll have to go in and run sudo hdiutil compact /path/to/disk-image How to compact a Time Machine sparse bundle using hdiutil compact or other a ageb @ageb1 Aug 26, 2019 Dec 20, 2023 · Intro hdiutil is a command-line utility on macOS that allows users to create, manipulate, and convert disk images. When I removed snapshots size of sparsebundle stays the same. Nov 9, 2007 · I tried hdiutil resize in an attempt to resize the dmg to 4gb, and it returned an error saying that is below the minimum size? I also tried hdiutil compact and it returned an error saying Function not implemented. Jan 11, 2012 · 8 I currently use hdiutil to create my DMGs. The path and file name will be added to the command line. 8 GHZ i7) over ethernet? Thank you for your help. sparsebundle Dec 20, 2006 · I have tried the hdiutil compact command but all that happens is that I get a "permission denied" response. I believe I've done it using hdiutil compact, but I remember it being a fussy and slow process. hdiutil resize -growonly -size 50g /path/to/my. It's really not much more verbose than that. Luigi Tadiotto Dp, Director, Filmaker wwww. Where diskutil is for "manipulating the structure of of local disks" (from the man page). sparsebundle and Jun 10, 2010 · For space considerations I need to remove some files and compact the result. Mar 7, 2016 · You may "reclaim" the free space using hdiutil: hdiutil compact my-special-repo. This solution helps me: From the manpage for hdiutil: "Depending on the location of files in the hosted filesystem", compact may or may not shrink the image. hdiutil compact “$@” Step Six … Save It Go to Automator’s File menu and “Save as Plug-in”. , 20G to 30G) hdiutil resize -size 30g ~/Documents/filename. As you write data, more band files are created to store it. dmg Obviously change the "Widget" and path to whatever you need. ) hdiutil convert /var/tmp/macos. cdr to diskimage. com Advertisement SHARE TWEET Jan 16, 2008 · Now I have a script run hdiutil compact on the sparsebundles a few minutes after every wake, but I do expect to lose all my backups when the volume is full again. sparseimage" But using Terminal is a bit of a pain. The following list highlights some common uses, but the full set of commands (and associated arguments and options) is extensive, and will not be detailed here. com Advertisement SHARE TWEET Mar 13, 2025 · hdiutil compact /var/tmp/macos. 11GB may just be worth recreating the image. Explains how to compact and resize them, and more. The settings should be identical to these of the GUI Disk Utility (File > New Image > Nov 18, 2009 · Hi, do shell script "hdiutil compact /Users/Nous/Sauvegardes/Duplication\ -\ iMacG5/Duplication\ -\ iMacG5. sparsebundle Wenn hdiutil die Anweisung mit der Meldung " ist zeitweilig nicht verfügbar" quittiert, ist das Image höchstwahrscheinlich gerade gemountet. sparsebundle to approx. I tought that shinking the sparsebundle's size would force Filevault (or hdiutil in the background) to reorganize the image's content being afterward able to free the disk space via "compact": $ hdiutil resize -size min xyz. Just type hdiutil compact in the Terminal, followed by a space. " If you chose to continue, the sparseimage that constitutes your home directory would be compacted (and you'd see a warning not to If you do not compact the image after you get for the first time this message, Time Machine will delete almost all backups and you will still get this message. sparseimage # Convert it to an optical disk image. Rename diskimage. sparsebundle ", which lo-and-behold resulted in over 140GB free on the Time Capsule again. Advertisement Add Comment Please, Sign In to add comment Advertisement Fill in the Window Type in the following in the window…. sparsebundle But no space was reclaimed. Aug 26, 2019 · How to compact a Time Machine sparse bundle using hdiutil compact or other a ageb @ageb1 Aug 26, 2019 Feb 15, 2013 · If you are accessing a disk image over a network then it's possible to have various operations interrupted if you encounter any kind of network issue, which can result in the image becoming "temporarily unavailable" when you try to resume whatever you were doing. sparsebundle is the bundle within it. dmg -fs HFS+. hdiutil compact -verbose /Volumes/Backups/GrandDaddy. The different formats you may see (more at man hdiutil): UDRW - UDIF read/write image UDRO - UDIF read-only image UDCO - UDIF ADC-compressed image UDZO - UDIF zlib-compressed image UDBZ hdiutil Hdiutil is a powerful command line tool available on macOS systems. Jun 22, 2025 · The hdiutil command is an indispensable tool for macOS users who need comprehensive disk image management capabilities. sparsebundle This will usually take a long time, but when it completes you will have freed up some space on the disk that you use for your backups. rm /var/tmp/macos. iso attach } compact () { detach hdiutil compact $ {VOLUME_PATH} -batteryallowed attach } help () { cat <<EOF usage: casesafe <command> Possible commands: create Initialize case-sensitive volume (only needed first time) automount Configure macOS to mount the volume automatically on restart noautomount Stop macOS from mounting the volume add option in diskimage-section which triggers a hdiutil compact on the given diskimage before attach and/or after detach Jul 20, 2025 · Just type hdiutil compact in the Terminal, followed by a space, then drag the sparse image file from Finder into the Terminal window. dmg I wanted to resize my partition for my mac so I have space for my bootcamp. Aug 31, 2003 · You can use tmutil to delete them manually, and hdiutil compact to reclaim free space. hdiutil compact image. See the hdiutil manpage or run hdiutil help Then dragging & dropping the sparse bundle you want compacted from the Finder onto the Terminal window which should automatically fill in the path to your sparse bundle. g. com is the number one paste tool since 2002. A few additional options that may be useful: -srcfolder /path/to/source This will create the disk image with the data in the specified folder as the contents. But hdiutil always fails with the error " hdiutil: compact failed - internal error " no matter which way i'm using it. 3 I have been able to successfully reduce the size of a DMG image after it was originally created using the hdiutil resize command. What I did thus far I already compacted the image: # hdiutil compact backup. Make sure Jan 15, 2010 · i tried to compact it using terminal but i got the error hdiutil: compact failed - Resource busy Aug 11, 2012 · Either way, I then did a `hdiutil compact` on the sparsebundle (after unmounting it), which freed up 29Gb. Sparseimage Compactor is very easy to use and it comes with a simple interface that is both intuitive and user-friendly. Common verbs include attach, detach, verify, create, convert, compact, and burn. Oct 8, 2019 · After these steps I successfully compacted my sparsebundle. With hdiutil, you can create different types of disk images like read/write Mar 16, 2012 · Create ISO Images from the Command LineYou can create ISO images from any source disk or data by using the command line in Mac OS X. It Mar 3, 2011 · If you free space in that volume you can use the command hdiutil compact to decrease the size of the disk image. sparsebundle hdiutil attach Torrents. If you don’t know what a sparse disk image is, then you likely don’t need this software yet. Otherwise, you can "expand" the DMG using hdiutil Jul 24, 2008 · I don't recall saying I was concerned about disk space. I want to shrink sparsebundle because it took all free space on my NAS. hdiutil resize -sectors min image. the size actually taken up the files. While the command line is generally reserved for advanced users, using it to create ISO’s isn’t too complicated and will save you the hassle Mar 25, 2016 · I'm using time machine to backup some servers to a sparse disk image bundle and I'd like to have a script to clean up the old back ups and re-size the image once space has been freed up. Basic Usage create Is it safe to cancel hdiutil compact? A sparse image is a type of disk image file used on Mac OS X that grows in size as the user adds data to the image, taking up only as much disk space as stored in it (quoth Wikipedia). If a sparse May 1, 2021 · >hdiutil: compact failed - erreur interne In System log I found this « diskimages-helper [506]: cannot compact filesystem because it was not unmounted cleanly. hdiutil(1) BSD General Commands Manual hdiutil(1) NAME hdiutil -- manipulate disk images (attach, verify, burn, etc) SYNOPSIS hdiutil verb [options] DESCRIPTION hdiutil uses the DiskImages framework to manipulate disk images. Then drag the sparse image file from Finder into the Terminal window. Disk images are virtual disk files that can contain the entire file system structure, including files, folders, and metadata. iso. Will it be okay to defragment the sparsebundle under these circumstances? Aug 23, 2009 · Hi, Apparently, there are two ways to convert disk images in CDR format to ISO format: 1. Other verbs : help, info, burn, checksum, chpass, erasekeys, unflatten, flatten, imageinfo, isencrypted, mountvol, unmount, plugins, udifrez, udifderez, internet-enable, resize, segment, makehybrid, and pmap. Note this won't automatically reduce the size of your sparsebundle back up files. is May 22, 2019 · Overview Package hdiutil implements a macOS hdiutil command wrapper. liquidandsolid. Jun 22, 2007 · hdiutil compact "Name of file. I'm always left fidgeting around with the size until I get it close enough. 6) Finder reports that the sparsebundle bands take about 4. From basic DMG mounting to advanced HTTP and SMB network operations, hdiutil provides the flexibility and power needed for both simple tasks and complex automation workflows. sparsebundle First command will reclaim the unused diskspace, while second will automatically mount the image. Find your sparse image in the finder. tmp. I like to have the workflow, as I need to do this regularly with at least 10 sparse images. hdiutil works with disk images, such as ISO or DMG files downloaded from the Internet. May 28, 2014 · When compacting a sparse image with the hdiutil compact command, it fails with the message hdiutil: compact failed – Function not implemented. "Here s a tip in case you re not used to working with Terminal. sparsebundle" -batteryallowed -verbose </dev/null hdiutil: compact: processing Expanding . (e. 5 I made a my. If you delete all the data that happened to be stored on a given band file, the band file is deleted. Sep 27, 2010 · This post helpfully explains the difference between a sparsebundle and the Backups. $ hdiutil help Usage: hdiutil <verb> <options> <verb> is one of the following: help imageinfo attach isencrypted detach makehybrid eject mount verify mountvol create unmount compact plugins convert resize burn segment info pmap checksum udifderez chpass udifrez erasekeys help display more detailed help Usage: hdiutil attach [options] <image> hdiutil attach -help Usage: hdiutil detach [options 1 if there's enough "space" on the Rd-onry DMG, you can convert to a R/W DMG using Disk Utility, and convert it back to a compressed DMG if you want. The command I use is hdiutil create -size xxxg myImage. Jan 23, 2018 · Note that hdiutil compact only removes completely unused bands. I've read on the Internet of a few people making similar complaints. If I try to resize the RAW disk image from UTM GUI, I get the normal message Resi If you would like to compact a disk image manually, you can use the command-line hdiutil utility to compact the disk image (e. Some of its most interesting controls are buried deep in its elaborate system of verbs and options, and its long and opaque man page. 3. Posted on Apr 27 Mar 4, 2012 · I remembered the trick about running "sudo hdiutil compact /Time Capsule Backup. 11. sparsebundle hdiutil compact -help (for a list of options) To increase the image size (eg. BACKGROUND Disk images are data containers that macOS TimeMachine cheatsheet. Not sure about them still appearing in the file list as they should disappear from the 'Star wars' screen. Package hdiutil provides a wrapper for macOS's hdiutil command, enabling developers to integrate disk image handling in their applications. The rest of the verbs Open OS X terminal, then run the following commands to execute the script: cd downloadsĤ. sparsebundles using hdiutil on Mac OS X The command below will grow a disk image to a size of 50 gigabytes, provided that the underlying file system containing the disk image has sufficient resources and that the disk image is currently set to be less than 50 gigabytes in size. Basic Usage create Synopsis hdiutil command [cmd-specific_args_and_opts] [-quiet | -verbose | -debug] [-plist] Essentially the command-line equivalent of the Disk Copy application, hdiutil manages disk images. $ sudo hdiutil compact /path/to/disk-image Dec 20, 2013 · I read, however, that the hdiutil compact command will only delete unused bands of the sparsebundle, and that defragmenting the contents of a sparsebundle will likely produce more "empty" bands that can be removed with another run of compact to further free up space. It Nov 14, 2023 · You have to use Disk Utility or hdiutil to shrink them. Jun 7, 2022 · The mounted Share includes the . My only "concern" is that a command is not performing as expected. Later, I used: hdiutil compact test2. Pastebin. sparsebundle hdiutil resize -help (for a list of options) Mount the image then do a Get Info on the Volume to see the Mar 11, 2007 · Welcome! You need to convert the alias returned by choose file into a POSIX path. backupdb, and there are also plenty of posts that explain how you need to compact your Time Machine . How it works Mar 21, 2017 · 释放稀疏磁盘映像空洞如果直接去删除镜像的文件后镜像大小不会改变，这时候需要去手动释放一下。 1hdiutil compact /path/to/disk-image I'm trying to run an "hdiutil compact <sparsebundle>" command to compact my time machine image, but it generates an "internal error" on hdiutil. Aug 13, 2014 · Re: hdiutil compact How long does it take typically to compact a 125 GB Sparsebundle from a Time Machine Backup which is located on a NAS? I am running OS 10. See below. I use an encrypted sparse disk image as a secure file repository for sensitive information, this is created by Disk Utility. GitHub Gist: instantly share code, notes, and snippets. sparsebundle. To test the efficiency of these sparse RAW disk images in a VM, I wrote a total of 53. -megabytes 50 used instead of -size 50m. This time, when I tried hdiutil compact, it worked. Aug 5, 2025 · This post fully introduces the hdiutil command, guides you use hdiutil to convert DMG to ISO, and helps you fix hdiutil errors. cdr imagefile. iso That’s all there is to it, now your DMG image file is an ISO, and it can be copied, burned, or used on any Mac or any PC with the proper hardware. if ALL the data in a given 'band' file has been deleted, including any metadata the file system inside the sparse bundle is using, then the above 'hdiutil compact' command can free up that band, and give the space back to the operating system to use for something else. Dec 15, 2008 · hdiutil compact doesn't reclaim all possible space in sparsebundle I have a sparsebundle (not Time Machine, BTW, as that seems to be what most people are asking around here in relation to sparsebundles lately). hdiutil uses the DiskImages framework to manipulate disk images. DMC-12 is the name of the Time Machine drive, and California. The rest of the I'm trying to release that space with hdiutil, but consistently get an error that the resource is temporarily unavailable. I also regularly compact the sparsebundles using a simple Applescript that looks like this: do shell script "hdiutil compact /Volumes/Drobo/'Drive 1. Functionally, hdiutil detach is the same as diskutil eject. g “Hard Drive:Folder:Disk Image” changes to “/Folder/Disk Image”. Jan 10, 2023 · Efficiency Current user-accessible sparse disk formats have to be manually compacted using hdiutil compact, and even then may not recover the expected space. The rest of the verbs are currently: help, info, checksum, chpass, erasekeys, unflatten Dec 20, 2023 · Intro hdiutil is a command-line utility on macOS that allows users to create, manipulate, and convert disk images. Dec 20, 2023 · Intro hdiutil is a command-line utility on macOS that allows users to create, manipulate, and convert disk images. I set it quite small. The eject in finder is essentially diskutil eject [device]. A much nicer solution is to use Automator to build a Finder plug-in, so you can compact your sparse images via the Jun 14, 2016 · I want to resize (shrink) the capacity of the backup. As shown in the following example the disk image goes from 55MB to 39MB after we deleted the file dv2003. hdiutil compact "/path/to/disk image. I don't know how safe this is if you're unsure about the HFS state, but it's a fact that when I then ran another fsck it finished successfully. mov Jan 17, 2019 · I have a sparsebundle file that I pulled off of an old Time Machine backup disk. Sparse bundles, in contrast, are stored as a folder full of "band files" of a uniform size (typically 4KiB if I recall correctly). Have you repaired the image to rule those out? Jan 21, 2018 · hdiutil is really for working with disk images just as you are doing. sparseimage file using hdiutil compact if you want to recover space after deleting old backups. sparsebundle Starting to compact… Reclaiming free spa - Pastebin. yrll yuyuxo rvdun glg pfy vavy fuebukb otwump vxpac qtc