Hello,
I noticed that the POSIX permissions of the /Volumes folder have changed in macOS 10.12 Sierra to 1755 (drwxr-xr-x) from 1777 (drwxrwxrwx) in 10.11 Yosemite and before. Additionally, macOS seems to restore the original permission on any reboot even they have been changed.
Does anybody know if this change is "on purpose" and will stay for the future or if this is merely a "glitch" of the beta?
Best regards,
Robert