I have two images of the same TM bakup, one with extension. Neither one of them can mount unfortunately from macos Catalina. I suspect this situation happened while upgrading to Catalina and in that process the TM process was interupted for an unknown reason. The NAS was not feeling well probably Based on a post in Apple support, some users have solved it by renaming externsion. However, I suspect that they hade only the. In my case, this renaming did not work.
Skip to content. Star New issue. Jump to bottom. Labels deep-dive. Linked pull requests. Copy link. Manually creating a sparsebundle disk image I added some notes on manually creating. If no arguments are provided, tmutil will compare the computer to the latest snapshot. If a snapshot path is provided as the sole argument, tmutil will compare the com- puter to the specified snapshot. If two path arguments are provided, tmutil will compare those two items to each other. The compare verb allows you to specify what properties to compare.
If you specify no property options, tmutil assumes a default property set of - gmstu. Specifying any property option overrides the default set. Options: -a Compare all supported metadata.
This may be specified multiple times. The dst argument mimics the destination path semantics of the cp tool. You may provide multiple source paths to restore. The last path argument must be a destination. When using the restore verb, tmutil behaves largely like Finder. Custom Time Machine metadata extended security and other will be removed from the restored data, and other metadata will be preserved.
Root privileges are not strictly required to perform restores, but tmutil does no permissions preflighting to determine your ability to restore src or its descendants. Therefore, depending on what you're restoring, you may need root privileges to perform the restore, and you should know this ahead of time.
This is the same behavior you would encounter with other copy tools such as cp or ditto. When restoring with tmutil as root, ownership of the restored items will match the state of the items in the backup. Delete one or more snapshots, machine directories, or backup stores. This verb can delete items from backups that were not made by, or are not claimed by, the current machine. Requires root privileges. Averages are printed after all snapshots have been analyzed. This may require root privileges, depending on the contents of the machine directory.
This, in turn, defrags the image for you. And at the same time you can change filesystem, size and even the bands. I don't know of a free way to do it, but I believe Prosoft Drive Genius will do what you're needing here:. I bet the drive that holds the sparse bundle has about 90 GB free space? As sparse bundles often can grow until the disk is full, this space is simply reported as being available free space You will see the same figures in Disk Utility. Very misleading indeed. I have ran "First aid" from Disk Utility on both bundle AND partition, and that helped — free space meter started showing real 20 GiB as it should have, and then hdi compact ran without problem.
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Active 2 years, 4 months ago. Viewed 51k times. Here is the background: I am using sparse bundles and every now and then I want to reclaim space from them so I run: hdiutil compact image.
Improve this question. After reading the manpage , I realized that the compact verb only works on "disk images containing an HFS filesystem". Relevant question on AskDifferent: apple. In general, is the encrypted. For example, as far as I can recall, the sparse image never shrinks at all even when I delete a significant number of files, it can only grow bigger.
Are the bugs in general the same? My main OS is still Mavericks Sparse images should work much the same, but use a single file for storage rather than a bundle with its bands. Images and bundles have their pros and cons. In general, I think the advantages of bundles are greater, unless you want to move them to other file systems, when having a single storage file can make life a lot simpler. BTW, you asked us to report about this: I created a full TimeMachine remote backup on Catalina three days ago and it seems to have proceeded and finished without a real problem.
Some details: The host machine is a mac mini running Catalina The backup stopped after the main HD was completed. The second backup an hour after the first ended picked up the GB SD Pro card I have plugged into the iMac for infrequently used large file storage.
Anyway both these two runs were without incident, and the result looks legit. And is surprisingly performant given that I browsed it over the network from slow drives; a welcome surprise given how fast the Time Machine view has been in the past. But of course this was Mojave to Catalina. Maybe the problem is Catalina to Catalina, and the issue is with the backup client code, not the backup server code? This is a second tier backup, run once a week; basically a way to get some final value out of a few drives that are 10 or more years old, until they finally give up and die on me.
Normally, TM in Catalina backs up all the volumes set to be backed up in one session. Well done! Thank you for this in depth article about sparse bundles. I use disk images a lot for archiving purposes. Sparse bundles could be a nice way to make online backups more efficient. Is that correct? Using Disk Utility has become somewhat of a lottery.
Cannot find answer related to encrypted sparsebundle DMG,s. Whats actually encrypted? The container only? The files placed in such container are encrypted or plaintext? I continue to use encrypted sparsebundles because they perform well and are nicely integrated. I have had very good performance even doing things like watching videos, etc on very old macs. I can even use SMB file sharing and then mount a bundle remotely.
But I also worry about my data in them. Aug 13, PM in response to bwcw In response to bwcw. I know this isn't the answer you want. I know that the manufacturer says the device will work with Time Machine, and I also know that it usually seems to work.
Except when you try to restore, and find that you can't. Apple has published a specification for network devices that work with Time Machine. None of the third-party NAS vendors, as far as I know, meets that specification.
They all use the incomplete, obsolete Netatalk implementation of Apple Filing Protocol. If you want network backup, use as the destination either an Apple Time Capsule or an external storage device connected to another Mac or to an Only the
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