File: mergeall-android11-updates-media/MORE--logs-and-code/Permissions-Termux-PRE-REINSTALL.txt
####################################################################################### # Demo an odd and sporadic permissions demotion in Termux on Android 11. # This is the "after" picture - when Termux's permissions have been downgraded. # This appears to happen only shortly after installing the Termux app. # To fix: toggle Termux's storage permissions off and on in Settings/Apps. # See also Permissions-Termux-POST-REINSTALL.txt for the "before" picture. ####################################################################################### $ python Python 3.9.1 (default, Dec 9 2020, 13:22:01) [Clang 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489 on linux Type "help", "copyright", "credits" or "license" for more information. # APP-PRIVATE: OKAY >>> open('/data/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/data/data/com.termux/xxx.txt', 'r').read() '1234' # SHARED: CAN WRITE BUT NOT READ >>> open('/sdcard/xxx.txt', 'w').write('1234') 4 >>> open('/sdcard/xxx.txt', 'r').read() Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/sdcard/xxx.txt' # ONBOARD MSD: CAN WRITE BUT NOT READ >>> open('/storage/6C2A-1618/xxx.txt', 'w').write('1234') 4 >>> open('/storage/6C2A-1618/xxx.txt', 'r').read() Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/storage/6C2A-1618/xxx.txt' # ATTACHED USB: NO ACCESS AT ALL (A NEW NORM) >>> open('/storage/8145-191C/xxx.txt', 'w').write('1234') Traceback (most recent call last): File "<stdin>", line 1, in <module> FileNotFoundError: [Errno 2] No such file or directory: '/storage/8145-191C/xxx.txt' >>> >>> open('/storage/8145-191C/xxx.txt', 'r').read() Traceback (most recent call last): File "<stdin>", line 1, in <module> FileNotFoundError: [Errno 2] No such file or directory: '/storage/8145-191C/xxx.txt' # MSD APP-SPECIFIC: OKAY >>> open('/storage/6C2A-1618/Android/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/storage/6C2A-1618/Android/data/com.termux/xxx.txt', 'r').read() '1234' # USB APP-SPECIFIC: NOPE >>> open('/storage/8145-191C/Android/data/com.termux/xxx.txt', 'w').write('1234') Traceback (most recent call last): File "<stdin>", line 1, in <module> FileNotFoundError: [Errno 2] No such file or directory: '/storage/8145-191C/Android/data/com.termux/xxx.txt'