Why would I get permission denied using adb to copy a directory to a subdirectory on my phone, when I could copy to its parent directory and both have the same permission?
I tried this from my PC to my Nexus 5 running 6.0.1 (Oct 5):
adb push Dir /sdcard/Dir/Subdir
It failed with
This has worked before, with no changes I'm aware of.
I launched adb shell and ran
to get permissions for /sdcard (storage/emulated/0), /sdcard/Dir and /sdcard/Dir/Subdir:
drwxrwx--x root sdcard_rw
cd /sdcard/Dir/Subdir mkdir XYZ
mdkdir: XYZ: Permission Denied
su mkdir XYZ
Again, permission denied
I then tried another push
adb push XYZ /sdcard/Dir
This worked and copied all of the files.
Why would it work to /sdcard/Dir and not to /sdcard/Dir/Subdir, when both have the same permissions? Why would permission be denied for root?