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 basic 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 company 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 top of replicating the Knowledge quantity, seemingly when it’s about to repeat both Preboot or Restoration, it fails with a Useful resource Busy error. Up to now, Useful resource Busy may very well be labored round by making certain the system was saved awake. However this new bug means, on most programs, 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 compelled to depend on it to repeat the OS, OS copying is not going to work till they repair it.
Synology said that the identical concern is impacting bootable backups to its NAS programs.
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 were also failing.
MacOS 15.2 breaks Time Machine backups. A good friend had his complete backup historical past blown away by Time Machine.
The difficulty 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 Memory on Unsplash.
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