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Apple Computing Products:
macOS - Apps and Programs
The demise of Bootable macOS Clones?
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<blockquote data-quote="Lifeisabeach" data-source="post: 1883063" data-attributes="member: 38864"><p>So there's a major new development with bootable backups. Bombich just released an update to CCC, which per the release notes:</p><p></p><p></p><p>So for laughs, I tried this again on my current USB 3.1 drive. I wiped it and let CCC make a full clone. Including the system volume requires letting CCC erase the backup drive first... you can't just update it. It completed the task just fine. I was unable to select the external drive as a startup disk from the System Preferences. In fact, it wasn't even present as an option. So I powered off; waited a couple minutes; then pressed and held the Power button to get to the startup options. I was able to select the Backup disk. At one point I was prompted to enter the admin password before continuing to boot, and what I think was named the Boot Recovery Utility popped up, but it continued on and started up just fine off of my external drive. Since this was a USB 3.1 drive and NOT a Thunderbolt drive, that drives a stake into the theory that a Thunderbolt drive is required. This backup booted up fine using either a Thunderbolt cable or a USB-C cable.</p><p></p><p>I will say it was quite a bit sluggish compared to booting off the internal drive, though that's likely attributable to the much slower WD SSD in use. I also thought it was interesting that I couldn't select an alternate startup disk from the System Preferences. When booted off the internal, only the internal shows. When booted off the external drive, only the external was presented as a startup disk option.</p><p></p><p>[ATTACH=full]33989[/ATTACH]</p><p></p><p>I am completely baffled as to why my previous attempts to make a bootable clone with Bombich's instructions using the last version of CCC failed repeatedly. I suppose maybe I did "something" wrong, or maybe it was an incompatibility with 11.3.1. /shrug</p></blockquote><p></p>
[QUOTE="Lifeisabeach, post: 1883063, member: 38864"] So there's a major new development with bootable backups. Bombich just released an update to CCC, which per the release notes: So for laughs, I tried this again on my current USB 3.1 drive. I wiped it and let CCC make a full clone. Including the system volume requires letting CCC erase the backup drive first... you can't just update it. It completed the task just fine. I was unable to select the external drive as a startup disk from the System Preferences. In fact, it wasn't even present as an option. So I powered off; waited a couple minutes; then pressed and held the Power button to get to the startup options. I was able to select the Backup disk. At one point I was prompted to enter the admin password before continuing to boot, and what I think was named the Boot Recovery Utility popped up, but it continued on and started up just fine off of my external drive. Since this was a USB 3.1 drive and NOT a Thunderbolt drive, that drives a stake into the theory that a Thunderbolt drive is required. This backup booted up fine using either a Thunderbolt cable or a USB-C cable. I will say it was quite a bit sluggish compared to booting off the internal drive, though that's likely attributable to the much slower WD SSD in use. I also thought it was interesting that I couldn't select an alternate startup disk from the System Preferences. When booted off the internal, only the internal shows. When booted off the external drive, only the external was presented as a startup disk option. [ATTACH type="full" width="588px" alt="screenshot_86.png"]33989[/ATTACH] I am completely baffled as to why my previous attempts to make a bootable clone with Bombich's instructions using the last version of CCC failed repeatedly. I suppose maybe I did "something" wrong, or maybe it was an incompatibility with 11.3.1. /shrug [/QUOTE]
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The demise of Bootable macOS Clones?
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