我首先安装了一个 WD Elements 驱动器
sudo mount /dev/sdb1 /media/elements
然后，在挂载的驱动器下创建了一个测试文件
touch test
并得到
-rwxrwxrwx 1 zhijia zhijia 0 2013-03-09 02:53 test
然后我试图改变它的主人
sudo chown mysql:mysql test
但主人一点都没变。什么原因？如何解决？
下面是mount：
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
none on /var/lib/ureadahead/debugfs type debugfs (rw,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/zhijia/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=zhijia)
/dev/sdb1 on /media/Elements type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
/dev/sdb1 on /media/elements type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)