Drive genius 4 and mac os high sierra12/6/2023 APFS does a lot of cool stuff with your data, from modernizing file indexes, to lowering overall latency. That’s a lot of behind the scenes engineering, and it’s just the tip of the iceberg. Additionally, APFS now supports native single and multi-key encryption, which means you’ll be able to encrypt or decrypt individual files and folders without locking or unlocking your entire hard drive through FileVault. Because of that, APFS is capable of managing up to nine quintillion files on a single volume. That’s a lot, but given the ever-increasing size of the hard drives we have available to us, it’s an uncomfortable ceiling.ĪPFS remedies that by using 64-bit inodes, or file IDs, instead of 32-bit file IDs like HFS+. As the storage experts at Backblaze report, HFS+ is only capable of keeping track of about four billion individual files. Image used with permission by copyright holderĪPFS is designed with SSDs in mind, so it’s able to handle a larger number of individual files. Still, the changes introduced by APFS are a big deal, even if they’re not exactly going to revolutionize the way you use your Mac. None of these are issues that most users would ever notice. The new file system, aptly named the Apple File System (APFS), aims to get MacOS ready for the future by addressing several the issues plaguing HFS and HFS+. Over the years Apple iterated on its original file system with HFS+, which is what was in use right up until MacOS High Sierra. Since time immemorial, Macs have used the hierarchical file system (HFS). The big new feature in High Sierra comes in the way your Mac stores and retrieves data. Let’s descend into the weird and arcane world of file systems. You really have to dig for the new High Sierra features - deep, in the darkest corners of your Mac, High Sierra begins its work, disassembling and re-assembling your files in its own image, optimizing and toiling away in obscurity. In fact, after using the High Sierra developer and beta builds over the summer, the only major difference we noticed in day-to-day use was the fancy new wallpaper. We’d never notice they exist if Apple didn’t point them out. These tweaks are fine, but they’re minor. And the Photos app synchronizes categories between devices, in addition to the photos themselves. Safari has been tweaked to improve performance. When it's finished the name of your USB installer will be Install macOS Sierra and it will be selectable as a bootable device in Startup Manager: How to choose a startup disk on your Mac - Apple Support.The big changes are behind the scenes, and the biggest change comes to the file system itself. If you wish to continue type (Y) then press return: YĮrasing Disk: 0%. To continue we need to erase the disk at /Volumes/untitled. Password: (type your Admin password - it will not be echoed, not even with MacBookAir2:/ john$ sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/untitled -applicationpath /Applications/Install\ macOS\ Sierra.app The name of the USB drive is "untitled" in the following: This is an example of what should happen. Then, drag the Install macOS Sierra icon from your Applications folder into the Terminal window. Then, type (or copy/paste) the following into Terminal: Stop right there do not press Return.ĭrag the USB flash drive icon from your Desktop to the Terminal window, and stop again. Go to the Terminal window, paste that line into the Terminal window, and type a space character. Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume Select the following line by dragging your cursor from just prior to the word sudo to past the word volume:
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