There is a Raspberry pi, there is a microsd card, there is an Android smartphone, there is no adapter for microsd - how to upload an .img image to a memory card?

Question

Windows

There is a Raspberry pi, there is a microsd card, there is an Android smartphone, there is a laptop with an SD connector, but there is no microsd adapter - how to upload an .img image from retropie to a memory card? It's very itchy in one place, I won't live to see tomorrow. Maybe there is software for Android to roll the image onto a USB flash drive? Or some way to make Windows see the flash drive as a separate device, and not as part of the phone?

Answer 1

The software is BusyBox, it has the dd applet , but it requires root rights.

Answer 2

The image contains not just files, but the entire file system, and even the boot sector, and possibly the partition table. Therefore, you can write it to the card only with full access to the device - this means that the card must be mounted on the computer for exclusive access. This can only be done in the mode of mounting the phone as a USB device, connecting via the MTP protocol will not work. Therefore, the success of the image recording depends only on whether the phone manufacturer has provided the "USB mass storage" mode.