Hard Drive upgrade – you should consider upgrading your hard drive when your HD is about to fail.If you need to restore your data immediately, a backup clone will give you instant access to your files. A WD clone tool helps you clone your WD hard disk as a full backup. Hard Drive backup – data safety should be your primary concern whenever you use your computer.Tags APFS Apple AppleScript Apple silicon backup Big Sur Blake bug Catalina Consolation Console Corinth diagnosis Disk Utility Doré El Capitan extended attributes Finder firmware Gatekeeper Gérôme High Sierra history of painting iCloud Impressionism landscape LockRattler log logs M1 Mac Mac history macOS macOS 10.12 macOS 10.13 macOS 10.14 macOS 10. I typically only reboot every 30-50 days anyway but remembering the odd extra steps is unwanted, even if my scripts remind me I have to find the time to do it! With a consistent UUID of 0 my work at reboot would get a few steps less. Mike at Bombich suggested trying this as msdos format allows UUID for drive to be set 0, this would allow my Carbon Copy Cloner scripts definitions to continue to operate after reboots where a new ramdisk would otherwise get a new UUID and CCC mandates that source drives are identified by UUID rather than name only (the option exists to use just name for destination, but they feel the need to enforce it for sources to prevent unhappy outcomes…). Not sure why Safari wants to do this, and as the error is new to me I guess it was happening fine on HFS+ Since then I have noticed Safai logging (on El Cap this is) about “Failed to create hard link”:Ĭom.: Failed to create hard link from /Users/colinwinuser/ramdisk/Apple/Safari/WebKitCache/Version 12/Blobs/…9E14 to /Users/colinwinuser/ramdisk/Apple/Safari/WebKitCache/Version 12/Records/8B25724…7BB/Resource/3161F5…D7B6-blob I run Safaria caching on a ramdisk, and at my last reboot swapped this from a regular HFS+ to a msdos format. This is in line with many other modern file systems, but Time Machine still relies on them, so APFS is not yet an option for its backup volumes (as of macOS 10.14 Mojave). Unlike versions of HFS+ since Leopard, APFS has no support for hard links to directories. I wish modern MacBook Pros were user upgradable.Īnd I thought I remembered a time when Apple advertised “It just works!” Not anymore, and eclecticlight provides timely and explicitly help to “Make it work again, when it doesn’t”.Īn AFPS and system operations…. I am glad I did not have to use any Terminal commands except to confirm the presence of a Recovery volume, nor had to explicitly “bless” the drive. I am convinced that at least for now, DU can be used somewhat successfully for APFS formatting. Erasing an SSD with DU does yield a Preboot volume and VM volume, but not the perhaps necessary Recovery volume. Cloning a backup on a hard drive formatted with HFS+ journaled of course does not have a recovery partition, so of course a direct cloning does not yield a recovery condition. Terminal command diskutil list showed that the Samsung drive now had the requisite Recovery volume. I thus erased the disk again, used an external USB flash drive to install a new Mojave 10.14.2 system, then during the Mojave installation copied over the backup drive and now had what I had wanted, a useable Mojave system that was a close copy of my previously backed up system. I had the late insight the recovery volume was only created when Mojave is installed to a formatted blank disk. I found I could still boot into a recovery system by using command-R, but I thought I would think this one out. I found that one of my apps, I think ChronoSync said the drive was okay, but missing a recovery volume! I replaced the internal SSD with the bootable clone SSD (Samsung 1 TB), and it booted just fine at the expected fast time. The screen was a blank dull gray for over five minutes, when it finally started to boot, it took another 10 minutes to finish booting. Testing the SSD in the external case by booting into the external drive was a bit frightening. I then used ChronoSync to reverse clone a backup of 10.14.2 to create a bootable cloned SSD. Erasing the drive to APFS with Disk Utility was successful, although DU first formatted as HFS+, journaled and then reformatted that to APFS. I started with a 1TB Samsung SSD in an external USB 3.0 case. I recently had reason to create a new bootable SSD to be placed in a 2012 MacBook Pro 13 inch, which is I believe one of the last MBP that allows internal upgrades. After reading your summary and reading the actual directions using terminal certainly seems daunting.
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