How can I make a Canon 6D exFAT SD card auto-mount properly in Linux?

Asked 2/15/2015

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I formatted a 64GB SD card in my Canon 6D, and Linux would not auto-mount it even though I could mount it manually. Tools like digiKam and Partition Manager did not detect the filesystem properly, and I saw mount warnings plus some buffer I/O errors. Running exfatfsck showed no filesystem errors. What can I do so the card is recognized and auto-mounted normally in Linux while still working in the camera?

exfat workflow linux memory-cards canon-6d

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

11y ago

2 Answers

Just solved the issue by chance - I used exfatlabel to name my card and voilá it was auto-detected and works fine under Linux and in my 6d:)

Originally by user31854. Source · Licensed CC BY-SA 4.0

user31854

11y ago

AI Answer

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A practical fix is to add a volume label to the exFAT card. In the reported case, using exfatlabel to name the card made Linux auto-detect and auto-mount it correctly, and the card still worked fine in the Canon 6D.

So if manual mounting works and exfatfsck reports no errors, the issue may be Linux not handling the unlabeled exFAT volume well rather than a problem with the camera or card formatting.

Typical workflow:

Insert the card.
Use an exFAT labeling tool such as exfatlabel to assign a name.
Reinsert the card and test auto-mounting.
Confirm the camera still reads and writes to it normally.

If filesystem checks remain clean after labeling, that supports the idea that the card itself is fine.

How can I make a Canon 6D exFAT SD card auto-mount properly in Linux?

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