July 11, 2018
Become the Trogdor of ISOs
On MacOS, there exist a few darwin executables that come in handy in regards to making external disks bootable.
- Download an image you want to install to another local machine
- Follow these steps within your favorite MacOS terminal application:
$ hdiutil convert -format UDRW -o /path/to/target.img /path/to/source.iso $ man hdiutil # Since you probably don't know what you just did... $ mv /path/to/target.img.dmg /path/to/target.img $ # Seems dumb, because it is. MacOS appends .dmg to the target image. $ # Insert your USB drive now! $ diskutil list $ sudo dd if=/path/to/converted.img of=/dev/rdiskN bs=1m $ # Wait for an annoyingly arbitrary amount of time. $ diskutil eject /dev/diskN $ # Actually super important. Ignore any warnings that MacOS throws at you.
- Plug it into the machine you want to ~~brick~~ install the image to and boot up in that one mode that lets you mess around with the BIOS!