By default mac os x doesn t use a case sensitive file system.
Usb stick mac os.
This will launch apple s startup manager which shows bootable devices connected to the machine.
Since operating systems are continually updated to stay on top of security issues whatever version of the operating system you end up putting on.
Creating the bootable os x el capitan installer will erase the usb flash drive you re using.
Next you re going to head on over to the mac app store on a mac laptop or computer.
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Point to your mac os dmg or iso file by clicking the add button.
If you want to use your usb stick with an apple mac you will need to restart or power on the mac with the usb stick inserted while the option alt key is pressed.
Right click on your usb drive option in transmac and select format disk for mac.
In the mac app store download the operating system installer.
I should get the con out of the way first before getting into the pros.
You can now run the operating system as normal and can use this usb drive to boot up your mac if your boot drive fails.
After that transmac will create bootable mac os usb within few minutes.
Don t be surprised by the slowness it will take considerably longer to boot the operating system of a usb drive than the pcie ssd installed in modern macs.
If your current os installation is still functioning you should be able to get there.
Before you proceed make sure you have a backup of the flash drive s contents or that you don t care that the data will be erased.
On a case sensitive file system file is different from file.
While making a macos installer is undoubtedly a great time saver if you have lots of macs to work on there is a downside.
Os x extended case sensitive journaled.
How to create a bootable macos high sierra installer drive put the macos high sierra installer on an external usb thumb drive or hard drive and use it to install the operating system on a mac.
Putting the latest greatest macos on a usb stick.