Replace: SuperDuper developer Dave Nanian studies that Apple has mounted the difficulty in macOS 15.3.
A number of backup bugs in macOS 15.2 Sequoia is affecting Apple’s personal Time Machine utility, in addition to third-party apps SuperDuper and CarbonCopyCloner. Initially the issue appeared to have an effect on bootable backups solely, nevertheless it now seems that it’s both extra normal than this, or there may be multiple bug affecting Mac backups …
Issues began with SuperDuper
SuperDuper developer Shirt Pocket initially used its personal code to create bootable backups of Mac volumes, earlier than Apple locked issues down in order that builders had to make use of the corporate’s personal replicator performance.
After SuperDuper bootable backups started failing, the corporate investigated and located that the bug was in Apple’s replicator code in macOS 15.2.
macOS 15.2 was launched just a few days in the past, with a shock. A horrible, terrible shock. Apple broke the replicator.
In direction of the tip of replicating the Information quantity, seemingly when it’s about to repeat both Preboot or Restoration, it fails with a Useful resource Busy error. Prior to now, Useful resource Busy might be labored round by making certain the system was stored awake. However this new bug means, on most techniques, there’s no repair. It simply fails.
Since Apple took away the power for third events (eg, us) to repeat the OS, and took on the accountability themselves, it’s been as much as them to make sure this performance continues to work. And in that, they’ve failed in macOS 15.2. As a result of that is their code, and we’re pressured to depend on it to repeat the OS, OS copying is not going to work till they repair it.
Synology mentioned that the identical problem is impacting bootable backups to its NAS techniques.
Wider macOS 15 Sequoia backup bug(s)
CarbonCopyCloner was additionally affected, which once more usually helps bootable backups, however then customers reported that (non-bootable) Time Machine backups had been additionally failing.
MacOS 15.2 breaks Time Machine backups. A buddy had his complete backup historical past blown away by Time Machine.
The problem seems to be particular to Apple Silicon Macs.
We’ve reached out to Apple for remark, and can replace with any response.
Through Daring Fireball. Photograph by Samsung Reminiscence on Unsplash.
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