It seems I have a very specific problem nobody has thought about. I've set up a Raspberry Pi with an SD card and it doesn't work properly. So I need to change some of its files from a different computer. While I can plug this SD card in any computer, unfortunately it uses some Linux filesystem that cannot be accessed on Windows or Android. I only have Windows and Android devices around, nothing with Linux or macOS. The free efforts in Linux filesystem drivers for Windows all fail in Win 10 x64. So I guess I need a simple Linux desktop system that I can run in VMware.
I've already tried with Ubuntu 18.04, and while I can browse the SD card, I cannot edit anything on it because it doesn't let me access root's files. Efforts with sudo and the sorts have led nowhere but to errors. The default file explorer hides the mount path so a terminal won't help either.
Is there a minimal Linux system that I can run from an image, without installation, to edit those root files on the SD card with a GUI editor? I can't remember terminal commands for long so I need a GUI solution for this type of task.
