I have built android kitkat for some I.MX6 board under ubuntu 14.04, however it refuse to boot from nfs and ubifs and display some init error.
When booting from nfs, it show
[ 8.144135] init: skipping insecure file '/default.prop'
[ 8.152296] init: skipping insecure file '/init.rc'
The issue is that there is some configuration file with write access for the group and android refuse to use them.
This can be solved by removing the write permission for the group( chmod g-w -R android_fs).
Why do I have to remove manually the write permission of the group?