Linux support for Fujifilm X10 RAF files appears to be limited and inconsistent. Some users report that dcraw supports the X10, and UFRaw may work since it uses dcraw as a backend. However, others report that dcraw/UFRaw treat X10 RAF files as corrupted, so real-world support may depend on software version.

A key complication is the X10’s EXR sensor. Its RAW files are less conventional than typical Bayer RAW files, and some software doesn’t handle them properly. That means even if a program can open the file, support may not be complete or ideal.

One confirmed data point is that F-Spot can at least display the files, which suggests Linux tools can read them to some extent. If you need dependable results, the safest workaround mentioned is using the camera’s in-camera RAW-to-JPEG conversion, which handles the EXR processing correctly.

So: there are Linux options, but “full support” is uncertain. If RAW workflow on Ubuntu is critical, test sample X10 RAF files with your preferred software before buying.