Comment 8 for bug 2064910

This is reflecting a deeper problem - An SD Card is acting differently to a USB memory stick. From the users point of view (and file manager) both are block storage devices and should be acting exactly the same.
With a USB stick I see a mount point in /media/main with a disk label I gave it (FLASH-1GB). In file manager the USB Stick is listed with the same disk label - this is good.

Whereas for an SD card there is a mount listed in /mnt, but with an automatically generated partition name mmc-SD128_0xda10bde9-part1 but in file manager however it is listed with the file system label I gave it SD128-HOME. Not only confusing but means more code required in file manager to support such a difference.

I think the issue is not that snap is trying to do something that is causing an error but more that the file manager can't cope with block devices that aren't working in a consistent manner. If the SD card worked exactly the same as per a USB stick this would overall vastly simplify future system maintenance; less code in file manager, easier to test, and easier to incorporate new block devices.