I'm trying to modify the contents of a .img file (which is meant for a 64GB SD card) but I'm running into issues. The SD card has a bit less usable space than other 64GB cards, and now the image file is too large to fit. I need to delete certain files from the .img to make it fit, but I'm using Windows and I can only read the file right now. Are there any suggestions or alternatives for editing the .img file? Would using VirtualBox with a Linux setup be a good idea?
5 Answers
Just a heads up, even if you delete files from an image file, it won't automatically shrink in size. You'll still need to resize both the file system and the actual image to fit within your SD card limits.
If you're looking for the easiest route, using VirtualBox sounds like a solid plan. It lets you run a Linux environment where you can manage the image file more easily. If you want to try editing directly on Windows, you'd need a tool to mount raw images like OSFMount and a compatible file system driver like Ext4Fsd.
To start, you need to know the type of image file you're dealing with. If it's, say, an exFAT partition, you might be able to mount it with Linux using the `-o loop` option. Doing that would let you make your changes and potentially create a new, smaller image file afterward. Just be careful with the disk size and don’t forget to resize the filesystem once you've deleted files.
Another option is to use Windows Subsystem for Linux (WSL). It allows you to run a Linux distro right inside Windows. Once you have it set up, you can mount the .img file and edit it as if you were on a Linux machine!
Oh, and one more thing to consider—make sure you know what's actually in the .img file. The term '.img' can refer to a variety of different formats, so understanding its contents will help you decide the best way to modify it.

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