So I bought 64gb micro SD card which was formatted as exFAT. I can't use it with Android and I am actually very happy now that I have a good reason to get rid of this ms crap. In particular I do not want to use FAT32 or NTFS because neither of these have a wear leveling functionality.

  • Which filesystems with wear leveling does Android support?
  • I'm not an expert in file system at all, but when researching this topic, I found it hard to give definitive answer, mostly because people argued that wear-leveling on mobile device is not the biggest concern. Some explained that wear-leveling is implemented on hardware level, or software level below the file system... – Andrew T. Sep 3 '15 at 4:14
  • (cont'd) also, a relevant question on Super User: Is flash drive wear a significant issue?. There must be a reason why you want this (you haven't mentioned it, but I assumed it's to improve SD card performance?). That said, YAFFS2 and ext2 were used by Android, but as file system on SD card, I'm not sure. – Andrew T. Sep 3 '15 at 4:26
  • Support for filesystem varies by device and firmware. Individual manufacturers/ROM modder may decide which filesystem they support from a wide range that Linux supports. So what's your device model? And do you use stock or custom ROM? – Lie Ryan Sep 3 '15 at 4:56

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