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Use the Erase tool instead and it should reformat fine. If you select an APFS volume, click on the Partition tool, then click on the Partition button, erasing that volume and reformatting it will fail with “an internal state error”. This is detailed here.ĭisk Utility – changing volume format fails If you want to perform secure erase of an SSD, you must use the diskutil secureErase freespace command.
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The same default erase process which does nothing to free space is followed in every case. I recommend users never to trust what Storage reports, but to believe the Finder and Disk Utility instead, although even they don’t seem to cope well always with APFS.ĭisk Utility – can’t perform secure erase of SSDsĪlthough Disk Utility offers Security Options when erasing an SSD, and each option claims to perform various levels of secure erase, none actually attempts any form of secure erase at all (they do still work for hard disks, though). Sometimes, leaving the dialog open for some minutes may lead to it correcting itself spontaneously. In this case, it may result from the fact that the volume contains an alias to an external SSD on which there is an additional 700 GB of ‘documents’, which are somehow being included in the total for the internal SSD despite the obvious numerical impossibility.
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Figures reported are often absurdly incorrect.įor example, this 1 TB internal SSD is reported as being just under half full, but its bar is almost completely full with a claimed 780 GB of ‘Documents’. This isn’t a new bug, but has been present since the introduction of the Storage tab in the About This Mac dialog many moons ago. Existing installed apps generated no such warnings.Ībout This Mac – Storage bar often absurdly incorrect
#Preview mac os slow mojave software#
Note that you cannot rely on Mojave to warn you of 32-bit software when you open an app: that only happens on the first occasion that an app is run after it has been downloaded from the internet. Use 32-bitCheck (from Downloads above) instead. The information given about ‘legacy software’ in System Information is highly incomplete and misleading. System Information – Legacy Software wrong and misleading This bug also affects Bookmark-based aliases created by alisma, and is discussed in full detail here. Trying this with an orphaned Finder Alias to a file, rather than a folder, doesn’t cause the Finder to hang, but to display the normal dialog offering to delete or fix the alias, as it should. The only way ahead is to press Command-Option-Escape and force the Finder to restart. In a Column view, if you try to open or even just preview a Finder Alias to a folder which now no longer exists, the Finder hangs with a spinning beachball. To see the list of bugs in 10.14.6, which is being maintained, please go to this article.įinder Aliases – Finder hangs when trying to open/preview a broken folder alias Note: This article refers to 10.14.2 and is no longer being maintained. This article lists bugs which you and I have encountered in macOS Mojave 10.14.2 itself, rather than issues in specific third-party applications and other software.
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