fix: don't expose eMMC as USB mass storage when no image is mounted#17
Merged
winstar0070 merged 1 commit intomainfrom Feb 19, 2026
Merged
fix: don't expose eMMC as USB mass storage when no image is mounted#17winstar0070 merged 1 commit intomainfrom
winstar0070 merged 1 commit intomainfrom
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When usb.disk0 is empty, no backing file is set instead of defaulting to /dev/mmcblk0p3. This prevents Legacy BIOS systems from hanging during boot when the raw eMMC partition was exposed as a USB disk. Cherry-picked from: sipeed#741 Original author: MagnaCapax
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Summary
usb.disk0is empty, the USB gadget now reports "no media" instead of exposing/dev/mmcblk0p3GetMountedImageAPI treats/dev/mmcblk0p3as unmounted for backward compatibilityCherry-picked from upstream PR sipeed#741 (author: @MagnaCapax)
Test plan
GetMountedImageAPI returns empty string when no image mounted