2

I have an SD card that apparently is formatted exfat. I tried copying some music onto it, and now my CM/marshmallow phone is saying that the card is corrupted. It mounts on my linux system, and running fsck gives me some file errors. But I can't fix them. I have no access to windows (well, maybe my wife's fairly locked down work computer). I'm leaving on a trip tomorrow and don't have time to pull off, reformat through android, and then reload my files. Any ideas?

Improve this question
1
  • On Linux, copy out everything and run mkexfat or mkdosfs.
    – iBug
    May 9, 2017 at 7:43

2 Answers 2

Reset to default
1

Note to self, since this happened again. I had to boot into a windows computer and run chkdsk. Doesn't appear to be a way to do this through linux. Maybe using testdisk, but I didn't mess with it much.

Improve this answer
2
  • So this fixed it yes?
    – William
    May 9, 2017 at 3:12
  • yes, but couldn't do it through linux.
    – mma8x
    Jan 13, 2019 at 17:06
0

exFAT got its spec opened by Microsoft and added to a free-to-join patent pool in 2019/2020. It got incorporated into the kernel - first in 5.7, then an updated codebase from Samsung into 5.10. They also opened up their exfat helpers at https://github.com/exfatprogs/exfatprogs that include a filesystem check util.

See the different repair options of the util (interactively/no/yes/automatically). Autorepair is:

sudo fsck.exfat -a /dev/sda1

your distribution probably has it packaged under the same name "exfatprogs"

Improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .