![]() Ensure an optical drive is present under the SATA controller and mount the previously created ISO to it.Add a new hard disk device under the SATA controller with >= 60 GB of space.Remove the IDE device in Storage > Storage Devices and replace it with a SATA controller.Optionally enable 3D acceleration in Display > Screen.Use 128 MB of video memory in Display > Screen.Use >= 4096 MB of memory in System > Motherboard.Untick Floppy in System > Motherboard > Boot Order.Ensure the type is Mac OS X and the version is macOS 10.12 Sierra (64-bit) (there is a High Sierra option too, but I chose Sierra by accident and it worked).Ensure the name of the VM is MacOS (ensure to keep the same casing).I didn’t find a combination that didn’t work, but create a VM with the following things in mind: I experimented with a few different settings in regards to the CPU and RAM allocation. Hdiutil convert ~/Desktop/InstallSystem.dmg -format UDTO -o ~/Desktop/HighSierra.iso Hdiutil detach /Volumes/Install \ macOS \ High \ Sierra Sudo /Applications/Install \ macOS \ High \ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/install_build Hdiutil attach /tmp/ -noverify -mountpoint /Volumes/install_build Hdiutil create -o /tmp/HighSierra.cdr -size 5200m -layout SPUD -fs HFS+J Running the below commands will create an ISO on your desktop named HighSierra.iso: Next, you need to create an ISO from the installer application that was downloaded in step 1. You can then verify that the installer has been downloaded by checking that "/Applications/Install macOS High Sierra.app" exists. I was unable to find the download within the App Store itself, but following this link opened the App Store at the correct page: Īfter opening the aforementioned page in the App Store, start the download, but cancel the installation when it starts. To do this, you need to be on an existing macOS system. Step 1: Download The High Sierra Installer This post contains the steps I extracted from various resources in order to get a fully working High Sierra install within VirtualBox 5. Although there was lots of guides around the web, none seemed to work from start to finish. Such a pain and taking WAAAY too long.Installing MacOS High Sierra in VirtualBox 5ĭuring a recent pentest, I needed to throw together a macOS virtual machine. I wonder if I need to spoof the date or something? I remember having to do that with El Capitan installs, but I can't find any info on that. Disk is grayed out with a message that says the OS on the disk is newer and therefore cannot install High Sierra, even though that disk is blank. Booted from a USB drive backup of my old internal hard drive and tried to install High Sierra on the now-blank internal disk. Created USB installer on different Mac and booted from that. Booted into Internet Recovery Mode to do clean install. Checked date in Terminal (it's correct)Ģ. Got the first message that said "The recovery server could not be contacted. First booted into Recovery Mode and wiped internal drive to do clean install. I've wiped the internal hard drive and am trying to do a simple clean install of High Sierra, but EVERYTHING I've tried is not working, giving me a message that "The recovery server could not be contacted." I've actually done this before on this machine, so I don't know what the problem is. Strange problem, hoping someone can help.
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