There is an error when I do the posix test by the following command: ./auster -v posix.sh
Log is :

Setting interval between checks to 0 seconds
Setup loopback disk? [y] 
Enter loopback device to use [/dev/loop0]
Enter the root password:
Password: 
Aborting installation
mv: cannot stat '/usr/src/posix/ext4/tet/test_sets/results/0002e': No such file or directory

I have set the root_passwd in the build-posix.exp to the correct one. Can some one told me why this happen? And is there any guidance about how testing posix ?
Thanks !