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Apple Computing Products:
macOS - Operating System
MAJOR HELP NEEDED! - re: 840GB of "Hidden" files and "Disk Error" due to iCloud Drive
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<blockquote data-quote="MacInWin" data-source="post: 1813810" data-attributes="member: 396914"><p>The drives you see in that old version of Disk Utility are NOT, repeat NOT, non-boot, nor are they damaged. The old version of Disk Utility does not understand the new APFS format that has been applied by Mojave. So there is ZERO reason to wipe them out, IMHO.</p><p></p><p>The System files are definitely on the boot drive, and the boot drive is one of those two the old version of Disk Utility is showing you. So if you do press on and delete those drives, you have wiped out all the data on them.</p><p></p><p>You can do a clean install, just not from wherever you ran that old version of Disk Utility. If that is in the Recovery Partition on the drive, it will not reinstall Mojave, but something older, much older, as that old version of Disk Utility has functions (relating to permissions) that have not been available for several versions.</p><p></p><p>Recovery mode, assuming that is where you got that old version of Disk Utility, will install only that old version, leaving you to go through the update process again to get back to Mojave.</p><p></p><p>I would not bother to try to "fix" the partitions with that old version of Disk Utility, and I really don't think they need "fixing" at all. It's the old version of Disk Utility that causes the supposed error, not the drive.</p><p></p><p>All that said, if you have a backup, you can reinstall Mojave on the drive completely by following the instructions here: <a href="https://support.apple.com/en-us/HT201372" target="_blank">https://support.apple.com/en-us/HT201372</a></p><p></p><p>That document shows how to make a bootable installer on a USB stick for Mojave, which is what you need. Create it, boot into it, then use Disk Utility to erase the drive, then reinstall the OS. That will wipe out everything on the drive, so make a backup first. Once it is installed, you can then use Migration Assistant at the very first time it offers, to restore from the backup. Some products, like those from Microsoft and Adobe, may need to be re-registered to work. The system files that are causing problems should not be brought back by migration.</p><p></p><p>It will take more than 1-2 hours to do all of this. Plus, by doing this you won't know what actually caused the problem, so it could return.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1813810, member: 396914"] The drives you see in that old version of Disk Utility are NOT, repeat NOT, non-boot, nor are they damaged. The old version of Disk Utility does not understand the new APFS format that has been applied by Mojave. So there is ZERO reason to wipe them out, IMHO. The System files are definitely on the boot drive, and the boot drive is one of those two the old version of Disk Utility is showing you. So if you do press on and delete those drives, you have wiped out all the data on them. You can do a clean install, just not from wherever you ran that old version of Disk Utility. If that is in the Recovery Partition on the drive, it will not reinstall Mojave, but something older, much older, as that old version of Disk Utility has functions (relating to permissions) that have not been available for several versions. Recovery mode, assuming that is where you got that old version of Disk Utility, will install only that old version, leaving you to go through the update process again to get back to Mojave. I would not bother to try to "fix" the partitions with that old version of Disk Utility, and I really don't think they need "fixing" at all. It's the old version of Disk Utility that causes the supposed error, not the drive. All that said, if you have a backup, you can reinstall Mojave on the drive completely by following the instructions here: [url]https://support.apple.com/en-us/HT201372[/url] That document shows how to make a bootable installer on a USB stick for Mojave, which is what you need. Create it, boot into it, then use Disk Utility to erase the drive, then reinstall the OS. That will wipe out everything on the drive, so make a backup first. Once it is installed, you can then use Migration Assistant at the very first time it offers, to restore from the backup. Some products, like those from Microsoft and Adobe, may need to be re-registered to work. The system files that are causing problems should not be brought back by migration. It will take more than 1-2 hours to do all of this. Plus, by doing this you won't know what actually caused the problem, so it could return. [/QUOTE]
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Apple Computing Products:
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MAJOR HELP NEEDED! - re: 840GB of "Hidden" files and "Disk Error" due to iCloud Drive
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