![]() For some cases, cloning the bookshelf in one go may be the best option, but in others, you may find that this bookshelf is locked with a key that you don't have, and it has to sit right in the middle of your living room, which prevents you from installing a couch, or something else. If you want a quick analogy, you can consider that DD mode is similar to cloning a whole bookshelf, full of books, into your living room. One of the drawback this has is that the boot loading and later process of the media has to be able to handle a Windows file system usually FAT32, but it could be NTFS or exFATwhich may come with some limitations, but this is usually not an issue for something like an installation media.Īlso, if you have a lot of small files the copy process in ISO mode can be a lot slower than the DD mode copy process. On the other hand what ISO mode does is partition and format the USB in a way that Windows can always understand and using the whole capacity of the driveand then copy each individual file and directory from the ISO image onto the newly created file system. ![]() Also, even if you are able to access the content, you will find that the available size you have is a lot less than the total size of your USB. So if you want to modify some settings, or want to access the doc, or, say, copy the firmware for your Wifi card onto the USB, you may not be able to do so. Basically, this flat copies the image byte by byte onto the USB, so if you look at the image in hex and see it starts with something like 33 ED 90 That's all DD does, and it usually ensures that you get an exact clone of the image or device the maintainer of the distro created.īut this can also be one of the drawbacks, as it means you will usually find that you cannot access the content of your USB any longer after it has been created. DD is an exact clone of the image onto the USB. ![]() I am trying to understand what steps Rufus goes through, depending on which mode is selected, and how that affects the outcome. Already on GitHub? Sign in to your account. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
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