. After downloading the installer, connect the USB flash drive or other volume you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is.
Open Terminal, which is in the Utilities folder of your Applications folder. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. After, follow these steps to use it.
Connect the bootable installer to a compatible Mac. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to.
Learn about, including what to do. Choose your language, if prompted. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal: Mojave: /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia High Sierra: /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia Sierra: /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia El Capitan: /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia.
As far as I know, the only way to properly create a bootable Lion disc/disk is to use Disk Utility on a working Mac. However, the other option is to use a VM to run OS X temporarily (scroll down for that info). On a Mac:. Download Lion from the Mac App Store. The installer should show up in your Applications folder. Right-click on the installer and hit 'Show Package Contents'. Navigate to Contents SharedSupport and look for a file called 'InstallESD.dmg'.
Using Michael D. Dryden's Link, I was able to use the Diskpart command to clean and prep a GPT partition on a flash drive for an OSX Mavericks install image. I used TransMac on Windows 7 to restore the image file I had to the Flash Drive, it created a bootable Mac image on my flash drive. Jump to How to make a macOS bootable USB installation media - To create a bootable USB drive with the latest version of macOS, do the.
Open up Disk Utility and drag the DMG file into the left-hand sidebar. If you're burning it to a DVD, insert your DVD, select the disk image in the sidebar, and hit the 'Burn' button. Skip down to the last step to use it.
If you want to burn Lion to a USB flash drive, plug it in and click on it in the left-hand sidebar in Disk Utility. Go to the Partition tab and select '1 Partition' from the dropdown menu. Choose 'Mac OS Extended (Journaled) on the left. Hit the Options button under the partition table and choose 'GUID Partition Table'. You'll need this to make the drive bootable on a Mac.
Hit the Apply button when you're done to format your drive (note: it will erase everything on the drive). Click on the 'Restore' tab, choose the InstallESD.dmg file as the source and your flash drive as the destination.
Hit the Apply button and it will create your bootable USB drive. Reboot into OS X and hold the option key when you hear the startup chime. You can boot into your DVD or flash drive from there. On a PC I know this works with Snow Leopard, but I'm not sure about booting Lion in Virtualbox. My suggestion is:.
Acquire a Snow Leopard iso image. Use to convert the Lion dmg into an iso. On Virtualbox click 'New'.
Choose OS as Mac OS X and click on 64bit or 32 bit (depending on your system) Snow Leopard. Choose VDI as storage and click next. Click on Dynamically Allocated space. Give 4096 MB of Ram for optimum performance or you can also give 2048. Once finished click on the Virtual OS you just created and click on settings.
Go to storage and click on the disk below the vdi storage. Click on the empty disk button on the right side of the window. Choose the.iso file you converted earlier. Just click ok and start the Virtual OS.