添加了块硬盘 后出现的错误！-----------VMware虚拟机

duweiming3

Red Hat Linux release 9 (Shrike)
Kernel 2.4.20-8 on an i686
login: oracle
Password:
Last login: Sun Sep  5 23:07:20 from 192.168.0.18
-bash: /dev/null: Permission denied
-bash: /dev/null: Permission denied
-bash: /dev/null: Permission denied
-bash: /dev/null: Permission denied
-bash: /dev/null: Permission denied
-bash: /dev/null: Permission denied
[oracle@localhost oracle]$ su -
Password:
su: cannot set groups: Operation not permitted
[oracle@localhost oracle]$