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VBoxManage setextradata "macOS" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"

VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Mac-2BD1B31983FE1663" VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0" VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "MacBookPro11,3" iso to the optical drive part of storage. Use two processors and 128 MB of video memory. Mv /tmp/ ~/Desktop/HighSierra.iso Creating the VMĬall the VM macOS (the tutorial says to use High Sierra, but we’ll be upgrading this later). Hdiutil convert /tmp/ -format UDTO -o /tmp/HighSierra.iso Hdiutil detach /Volumes/OS\ X\ Base\ System Hdiutil attach /tmp/ -noverify -nobrowse -mountpoint /Volumes/install_buildĪsr restore -source /Applications/Install\ macOS\ High\ Sierra.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase

Hdiutil create -o /tmp/HighSierra.cdr -size 7316m -layout SPUD -fs HFS+J I did a modified version of How to Install macOS High Sierra in VirtualBox on Windows 10 to get High Sierra installed on VirtualBox. So there may be a way easier way to set up Catalina as a guest on a Mac host, but at least this is something (happy to link to better tutorials if people post them). There are also, if you look for blog posts about macOS guests, many blog posts about Apple-unsanctioned “hackintosh” setups on Windows or Linux hosts. Or that there are difficulties with VirtualBox and APFS. There are a lot of posts indicating that 10.15 or 10.15.1 worked but 10.15.2 and beyond don’t. I won’t say this is the way to install macOS Catalina on VirtualBox, but it’s certainly a way, and it’s difficult to find information about a way to do it.