and says that since macOS Sequoia 15.2 has changed a feature called the Replicator, his app has been unable to create a bootable backup.
"Since Apple took away the ability for 3rd parties (eg, us) to copy the OS, and took on the responsibility themselves, it's been up to them to ensure this functionality continues to work," continues Nanian.
says what they think is a bug in macOS Sequoia 15.2 has inadvertently broken how the app can create bootable backups — however, it may not be accidental at all.
What this means is that at the last moment, a backup that is meant to create a bootable copy of a user's macOS system, will fail.
It's some years since Apple took steps to at least make it harder for people to start up their Macs using external drives.
