I couldn't get it to work with TransMac.
TransMac couldn't read the dmg images.
It said 0 bytes, and finished in sub-second speed.
However, this is what worked:
- Install PowerISO
- Under tools, select install to bootable usb
- Select the image file (needs to be ISO, .raw, or whatever else PowerISO can read)
- You need to select the non-standard "raw" option under write-options
This will write the iso/raw file to a USB drive, as bootable.
Now, on the Mac, you need to hold the Option-Key (also known as ALT on a windows-keyboard)
Then you should be able to select "install XY" in the boot prompt.
However, this won't work, you'll get the
“application is damaged, can’t be used to install macOS”
This is caused by expired certificate files.
So in order to fix this, do the following additional steps:
- Open the drive you wrote with PowerISO in TransMac.
- In the folder “Contents”, go to subfolder “SharedSupport”
- In “SharedSupport”, delete the file named “InstallInfo.plist” in the TransMac file-tree (
Eject the USB key, and you have a working bootable USB-stick.