I badly need to install macOS Sierra in a Macbook Pro (early 2015). I accidentally erase the contents of it's hard drive. The only option I have is using Internet Recovery, but I don't want to waste Internet bandwidth and the fact my connection is very very very very very slow.
I only have:
- Ubuntu 15.10-installed computer
- 64GB USB Flash Drive
- DMG file: Install macOS Sierra.dmg
- DMG file: InstallESD.dmg extracted from the DMG file mentioned above
- GParted Partition Editor
- dmg2img package, which is used to convert DMG to ISO
- hfsprogs package, which is used by GParted to create a partition having a HFS+ file system
I have tried:
- Converting the DMG files to ISO
- Formatting the USB Flash Drive with GPT as the partition table
- Creating a partition of an HFS+ file system on the USB Flash Drive
- Unmounting the USB Flash Drive before I issued the command below
- Issuing a command
$ sudo dd bs=4M if=/path/to/converted.iso of=/dev/sdb && sync
Supposedly, I already had a bootable USB that will install macOS sierra. But when I plugged it in the Macbook Pro, turned on the computer, and pressed the alt/option key (which will give me options what drive to boot), only the Internet Recovery was the option. I was expecting the bootable USB to show up.
I would like to know the correct way of creating a bootable USB, for the DMG file, in Ubuntu. Let me know what I am missing.
21 Answer
Try installing unetbootin in the ubuntu machine with the command
sudo apt-get install unetbootin
and using your mac iso, install it to your usb
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