I'm attempting to create an external drive that can boot and install multiple full operating systems, not just live environments with persistence. I specifically need assistance with setting up a bootloader like GRUB and partitioning the drive correctly so that I can choose between different installed OSs, such as various Linux distros and Windows, directly from the external drive. Has anyone had experience with this? What are the best practices for configuring the bootloader and partitions for multiple OSs on one external drive?
3 Answers
If you're planning to use UEFI for your OS installations, you should start by creating a sizable EFI partition. Each OS you install will need to create its own directory on that partition for its EFI/GRUB boot files. Just keep in mind that some Linux distributions might use the same directory name, so you'll want to be careful with that.
Also, I found a resources page that could help you out! They have a wiki with useful links related to setting up multi-OS environments. It's worth checking out!
A great tip is to regularly back up your data and test configurations in a virtual machine (VM) first. This way, you can avoid accidental mishaps when executing commands. Understanding each command before hitting enter is crucial!
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