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#Install disk creator instructions macos how to
#Install disk creator instructions macos install
#Install disk creator instructions macos iso

How do I use Disk Utility to reformat my hard drive? Otherwise, you can skip this step and do it from the Utilities page during the macOS or OS X installation. If your Mac doesn’t work, you can do this using a second Mac and an external hard drive caddy. It’s easy to reformat your hard drive using Disk Utility in macOS or OS X. Disk Utility can be used to format external drives as well. If you don’t want to lose data from your hard drive, export the data or back it up before continuing. You may need to reformat your new hard drive before installing macOS or OS X on it.

macOS could not be installed, how-to fixįormat your new hard drive for macOS or OS X.

#Install disk creator instructions macos how to

How to create a macOS Catalina USB installer.

Factory reset MacBook Air and other Macs with macOS.

How to downgrade from macOS Mojave to macOS High Sierra.

#Install disk creator instructions macos install

Or use the OS X installation disc that came with your machine - or buy a new one - to boot up and install OS X on your Mac’s hard drive.

Download the relevant macOS or OS X installer from Apple, then use Terminal to create a USB installer you can boot up from.

Install macOS or OS X from Internet Recovery Mode, which you can boot into by holding option+command+R while your Mac powers up.

If you’re tech-savvy but don’t know where to start, use these Quick Tips to point you in the right direction for getting macOS or OS X on your drive:

How do I install OS X on my hard drive using an installation disc?.

How do I use a bootable USB installer to install macOS or OS X?.

How do I create a bootable USB Installer?.

Which version of macOS or OS X should I create an installer for?.

Create a bootable USB installer for macOS or OS X.

How do I use Internet Recovery Mode to install macOS or OS X on my hard drive?.

Install macOS using Internet Recovery Mode.

How do I use Disk Utility to reformat my hard drive?.

Format your new hard drive for macOS or OS X.

This is it, you have a bootable OS X usb drive. From the first iso, obtained on step 3, copy BaseSystem.chunklist and BaseSystem.dmg on the thumb drive (actually, the latter might not be necessary - but it worked for me at this step and I stopped experimenting). Mount the thumb drive (you might need to apt-get install hfsprogs to mount an HFS filesystem). In my case (High Sierra 10.13.6), 4Gb stick was sufficient, even though createinstallmedia requires 8Gb.

#Install disk creator instructions macos iso

iso as well ( dmg2iso -i BaseSystem.dmg -o BaseSystem.iso)Ĭopy it to a thumb drive: dd if=BaseSystem.iso of=/dev/sdX BS=1M. iso įind BaseSystem.dmg in the mounted image. You can do it from GUI (right click, "Open with disk image mounter") or something like mount -o loop. So, you'll need to find an alternative source.Ĭonvert. This question on apple support has all the links, but they are only accessible from OS X (if you had access to a live OS X at this point - you probably would've just used createinstallmedia already, right?). Unlike El Capitan, High Sierra only needs BaseSystem.dmg, which also has enough free space to boot - so, the process overall can be simplified a bit. So, leaving it here in case somebody else will need to.

I recently had to make a High Sierra 10.13.6 bootable USB drive, and the process turned out a bit more involved that just dd-ing the dmg2img-generated ISO to a thumb drive.