# mkdir -p /test/music # created this dir as a root
# chmod g=x,o= /test # rwx--x---
# gpasswd -a x1 root # adding x1 user into the root group
# su - x1 # login as x1
$ cd /test
permission denied
x1
属于root组,并且该组有执行权限,x1
应该可以进入该/test
目录,但是为什么权限被拒绝呢?