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Unexpected root access (1777) reported on Android 7.1.2

Question asked by Gary Steimle on Mar 22, 2019
Latest reply on Apr 11, 2019 by Victor Linnik

We have Android 7.1.2 (Nougat) running on a device with imx6. When I use 'adb shell' to access the device, then run 'stat /' to get statistics on the root directory, it returns the following:

File: `/'
  Size: 920      Blocks: 0       IO Blocks: 4096        directory
Device: 2h/2d    Inode: 2        Links: 18
Access: (1777/drwxrwxrwt)       Uid: (0/    root)       Gid: (0/    root)
Access: 1970-01-01 00:00:00.000000000
Modify: 2019-03-22 21:29:14.240000000
Change: 2019-03-22 21:29:14.240000000


Why is the Access being reported as 1777? Indeed, if I try to copy anything into root, I get the 'Read-only file system' error, which is what I expect. But why doesn't 'stat' reflect this?


When we had JellyBean loaded on this device, the Access returned by 'stat' was the more expected 0755:

  File: /
  Size: 0               Blocks: 0          IO Block: 4096   directory
Device: 1h/1d   Inode: 1           Links: 16
Access: (0755/drwxr-xr-x)  Uid: (    0/ UNKNOWN)   Gid: (    0/ UNKNOWN)
Access: 1970-01-01 00:00:00.000000000
Modify: 2019-03-22 20:03:05.000000000
Change: 2019-03-22 20:03:05.000000000


Please advise on how to get the root configured so that it reports its access as 0755 on Nougat?


Thank you.