Maybe one day that will be mature enough to be added to Disk Utility.Ĭongratulations to the engineers at Apple who have finally made Disk Utility complete. Currently, that’s only available as part of the mechanism by which Time Machine backs up to APFS. Although this might appear simple, copying the file system metadata of the snapshot itself is of no use, and it needs to be accompanied by the data referenced by the snapshot. The remaining technique using snapshots is copying them to another volume. Restoring a whole volume from a snapshot should normally be performed in Recovery. These enable you to maintain snapshots and to copy items from them. But the man page has still been updated, honest!)
(Thanks to Pico for pointing out that I hadn’t noticed these commands, which have apparently been there for some years. man diskutil, updated in January 2021, provides additional detail. The command to delete a snapshot is deleteSnapshot. Will list all snapshots, no matter what created them, on disk13s1. These commands have been added to the apfs verb there, so Deletion is irreversible, as you’d expect, and only to be undertaken when you’re certain that’s what you want to do.Īccompanying this is support for the listing and deletion of snapshots in the diskutil command tool. Select a snapshot from the list and you can mount it, show it in the Finder, rename it, and delete it, using the More button and the – tool at the bottom left. The most recent snapshot has a Partition symbol shown against its Tidemark, a value which isn’t explained in the Help page, unfortunately. Most important among those are the name, date of creation, and cumulative size. This opens a new table view in the lower part of the main view in which the selected volume’s snapshots are listed.Īlthough their order is fixed, with the most recent at the bottom of that table, you can customise the columns shown. To engage its new powers, select a volume and use the Show APFS Snapshots command in its View menu. This new feature is cunningly hidden so that you don’t notice this huge leap forward when you first open the app. After four years in which it had offered frustratingly limited support for the new features of APFS, Disk Utility is now complete: this version has excellent support for snapshots, no matter which app created them. I’m delighted to announce not just a nomination, but an outright winner: Disk Utility 21.0, bundled with Monterey.
#Superduper error 5 how to#
We’ve actually figured out how to get at least a little useful information out of the weird errors system tools produceĪpple M1 Backup Bug Mac Mac App macOS 11.As it’s getting towards the end of the year, I’ve been on the look out for nominations for the title of the most improved utility of the year. This does not mean the drive isn’t bootable-it’s a weird bug in Big Sur. Startup volumes will often not show up in the Startup Disk Preference Pane in System Preferences under Big Sur. Booting an M1 Mac From an External Disk.
The Role of Bootable Duplicates in a Modern Backup Strategy.
#Superduper error 5 update#
So, we decided that under macOS 11 and later, a Smart Update of a "volume group"-that is, a startup volume-will only copy the Data volume, updating your applications and data but leaving the system as-is. In our internal testing, some SSDs couldn’t handle the load without intermittently overheating and generating errors. Without those changes, we couldn’t have done this in a supported way.Īsr copies at a low level and works a drive quite hard. I’m certain it required changes to the M1’s startup process and to asr to finally make it happen.
To be clear, this is only possible because Apple made it possible in macOS 11.4. As such, we can finally release a Beta that works as expected on both Intel Macs (now) and M1 Macs (assuming you have installed 11.4 Beta 1 or later).
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