I can't get one my new YUNs to recognize an SD card. Except for that, the YUN seems to do everything perfectly. My other YUN mounts SD cards properly. Even when I swap SD cards between YUNs running the same sketch the bad Yun won't mount it. However if I plug the same SC card into the large USB port using an adapter, the bad YUN mounts it properly and the sketchs like TemteratureWebPanel run without a problem. I have examined both YUNs using SSH in WinSCP and the bad YUN does not show any contents for the SD card. The other YUN does. Dmesg reports no activity when I plug or unplug the SD card from the microSD connector. Dmesg does report it on the working YUN. The SD cards are 16GB, FAT32 with an Arduier in the root.
I notice an interesting difference in the folder dates between the two YUNs. In my good YUN most of the folders have a date of 8/8/2013. However in my bad YUN most of the folders have a date of 11/22/2013. This is especially the case in the proc folder where I see many differences between the two YUNS. On 11/22/2013 I was running sketches in bad YUN that didn't use an SD card. Could something have reset the bad YUN's software and caused my problem? Is there a fix? I need help to use the microSD connector for data logging in both YUNs