https://bugs.winehq.org/show_bug.cgi?id=53012
--- Comment #10 from conurus@gmail.com --- Created attachment 74841 --> https://bugs.winehq.org/attachment.cgi?id=74841 Volume label of a SD card is blank
WINEDEBUG=+file,+volume,+mountmgr wine64 explorer.exe Go to My Computer, I: (drive letter of the SD card) The log before I clicked on "I:" is omitted
[first attempt at dosdevices/i::, two colons, in the trace] mountmgr is the one trying to deduce the volume label from the boot sector using low-level disk access. (dlls/mountmgr.sys/device.c, VOLUME_ReadFATSuperblock) We know that it is bound to fail (permission denied) and we think it is harmless.
[Fallback to dosdevices/i: (single colon)] I don't think the fallback case find any volume label either, but returns a blank string. It seems like the fallback case expects .windows-label to contain the volume label.