OK, now we're getting some place. I used File Manager to check the permissions of the root directory of sdcard0 (the internal card on my tablet). It shows that the root directory owner is system, the group is sdcard_rw. Permissions are set to:
Owner: 000
Group: rwx
Others: r0x
I see two ways of proceeding. Either figure out why a USB connection to calibre is not defaulting to part of group sdcard_rw, or figure out a way to set the root directory permissions for Others to rwx.
I would really like to avoid the latter if at all possible as that is a huge security hole. Any thoughts on some way of using the first option?
Thanks again!
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