Start by running the diskutil list command, which returns a list of all your disks, like this: You encrypt disks with the diskutil command, but first, you have to convert them to a format called CoreStorage. I tried this method and it didn’t appear to work properly so I used the Terminal approach.
You’ll have to enter the password a second time, and you won’t be able to go any further unless you also enter a password hint. Choose Encrypt "disk name" and enter a password. I then used Migration Assistant to pull over all my Apps to the SSD boot drive.Ĭontrol-click on a disk in the Finder to encrypt to encrypt it (in a Finder window, the Finder sidebar, or on the Desktop). That all worked fine, and when I rebooted and logged in to my account, all my Users are on the Data HD. Obviously, for all permissions to work correctly you need to keep the new user names and passwords the same as the old ones. In the Users & Groups preference pane, I right-clicked on my account name and selected Advanced Options, and set the location of my user account to be my old user account on the secondary drive now named Data HD. I then set up my main user account with the same name and password as before.
I left my old system in place on the old drive and did a clean install of Mountain Lion 10.8.2 on the SSD.
Sw_vers - Print macOS operating system version.Recently I became so sick of the slowness of my MacBook Pro (late 2011 model), which has a 2.4 GHz Intel Core i5 with 16 GB RAM running Mountain Lion 10.8.2, that I decided to buy a 120 GB Kingston SVP 200 SSD drive for my boot drive and put my previous 500 GB Hitachi HD in place of the DVD drive. SP742 - macOS Sierra 10.12 - Technical Spec. SP765 - macOS High Sierra 10.13- Technical Spec. SP777 - macOS Mojave 10.14 - Technical Spec. SP803 - macOS Catalina 10.15 - Technical Spec. HT201372 - Create a bootable installer for macOS. The macOS Startup Manager will then appear and you can select a startup drive. To boot from an alternate drive restart your Mac while holding down the Option key. The build process can take 20 minutes or so to complete, wait for the 'Done' message If you see the message “ To continue we need to erase the disk at /Volumes/Untitled.” Type the letter Y and press Return.
Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ macOS\ Sierra.app -nointeraction Sudo /Applications/Install\ macOS\ High\ High Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ macOS\ High\ Sierra.app -nointeraction Sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ macOS\ Mojave.app -nointeraction Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ macOS\ Catalina.app -nointeraction Becasue we are using sudo you will be prompted for a password:
Open the terminal and copy one of the following, single line commands. The program used to create a bootable drive ( createinstallmedia) is supplied as part of the installer App. You could name the drive to something different as long as you adjust the command line syntax below to match. The Terminal commands below assume that the drive is named Untitled. Name the drive ' Untitled' this name will be changed when the new volume is initialised.
The drive must be formatted as a Mac OS Extended (Journaled) volume with a GUID Partition Table. This can be a hard drive, an SSD, or a USB stick. You need a Mac-formatted drive big enough to hold the installer and its data - 8 GiB.
Then copy the installer App somewhere else so that you won't have to download it again.Īt the command line, spaces must be escaped so these become: Therefore your first step after downloading the installer should be to cancel the install. If you run the macOS installer from the /Applications folder, the installer app will be deleted. MacOS is distributed through the App Store which will download an installer app to the /Applications folder. Use a USB flash drive (or other removable media) as a startup disk from which to install macOS.