Get the latest tech news
macOS 15.2 breaks the ability to copy the OS to another drive
was released a few days ago, with a surprise. A terrible, awful surprise.
Towards the end of replicating the Data volume, seemingly when it's about to copy either Preboot or Recovery, it fails with a Resource Busy error. It's bad enough we have to work around other bugs in this code, but when it breaks completely, we're stuck pointing fingers and offering workarounds that don't involve the replicator. What this means is this: until Apple fixes the bug, you'll have to use "Backup - all files" with "Smart Update" to copy everything but the OS.
Or read this on Hacker News
