![]() ![]() This is the part you can go grab a large cup of coffee, no user interaction is required for 30 to 60 minutes:ĭuring the upgrade, there will be couple of reboots. Only after those yes, I agree -clicks your upgrade kicks in. Now your bootable USB-media is ready! Upgradeīoot your mac, press and hold your option-key pressed to access the boot-menu:Ī menu will appear, select Install macOS to upgrade: Install media now available at "/Volumes/Install macOS Catalina" Installer files are located at /Applications/Install\ macOS\ Catalina.app/Contents/Resources/:Ĭd /Applications/Install\ macOS\ Catalina.app/Contents/Resources/Įrasing disk: 0%. dev/disk3s2 on /Volumes/macOS Catalina (hfs, local, nodev, nosuid, journaled, noowners) The newly formatted stick is already mounted (run command mount): Now your stick is ready, go transfer the macOS installer files to the stick. Initialized /dev/rdisk3s2 as a 28 GB case-insensitive HFS Plus volume with a 8192k journalĢ: Apple_HFS macOS Catalina 30.4 GB disk3s2 # diskutil partitionDisk /dev/disk3 1 GPT jhfs "macOS Catalina" 0bįormatting disk3s2 as Mac OS Extended (Journaled) with name macOS Catalina Formatting doesn't wipe the sectors, but given a completely empty filesystem, your bits are quite lost there alone. The obvious word of caution is: This will erase any data on the stick. So, either su - to a root-shell or prefix the commands with sudo.įormat the USB-stick. Most of the commands below need root-access. None of them are suitable targets for creating Catalina installer stick. The other drives are flagged either ' internal, physical', ' synthesized' or ' disk image'. Insert the USB-stick into the mac and from a command prompt, see what the physical USB-drive is: Maybe there is a bug in the DiskMaker X and a new version has thata one fixed. It did process the files and seemed to do something, but ultimately my USB-stick was empty, so I chose to do this the old fashioned way. Create your USB-stick from command lineįor reason I don't fully understand, DiskMaker X version 9 failed to create the stick for me. ![]() This is how couple past macOS versions save your disc space. You need to create the USB-stick before upgrading. If you'd continue, the installer would upgrade your mac and at the final phase of upgrade, it would delete the precious macOS files. When the installer has downloaded and automatically starts, you need to quit the installer. It will take a while to download all of 8 GiB of it. Go to App Store of your mac and choose macOS Catalina. Playing music doesn't mean you get to access my stuff. I have no idea why or for what reson Spotify needs to access any of the files in my Downloads-folder. Yet the people designing these operating systems think it will vastly improve security to present user a Yes/No question without proper basis.Īn example: For the above Spotify-question I chose to respond No. You're presented a question as a response to your action and the question has almost no relevance to anything you're trying to do. This same phenomenon is happening in Windows and Android. As usual, the questions are obscure at best. The worst part in Catalina is the increased level of nagging:Įvery single app is asking me permission to do something. You can go to 128 or 256, but for example 8 isn't an option anymore. At the USB-stick shop I realized, that minimum size of a stick is 32 GiB. For catalina:Ĩ GiB wasn't enough! Whaaaaat? How big the installer has gone. ![]() I own couple of macs, so you'll never know when OS installer will be needed. Installer sizeįor that past many years, I've had my OS X / macOS USB-stick. The broken macs can be salvaged, but it's very tricky as they won't boot. When UEFI upgrade does this kind of damage, that's obviously bad. Breaking hardwareįor some, the installation simply bricked their hardware, see Limited reports of Catalina installation bricking some Macs via EFI firmware for more details. Some noisy persons in The Net found this problematic. Me, personally, didn't find any problems with that. Changes in 10.15 from previous versions 64-bit Onlyįor those using legacy 32-bit apps Catalina brought bad news, no more 32-bit. It caused lot of commotion already before launch. MacOS 10.15 Catalina is a controversial one. ![]()
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