Hi, I'm also experiencing the same issue.
I scan files with "uvscan -v <path>", and no matter where the file is located, the first output we get is:
"/dev/sdb ... is not supported
/dev/sdc ... is not supported
/dev/sdb ... is not supported"
and then the scan results appear.
it is weird cause VSECL is able to scan files that are actually present on these "unsupported" locations, but still shows the errors.
Use a recent copy of the scanner, the one you use is now outdated, I wouldn't recommend using it, I have tried on a plain Ubuntu just now with "uvscan -v <homepath>" works okay.