debian 6.0安装oracle遇到 /bin/ksh not find

字符界面安装，检查环境时遇到

sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found
sh: /bin/ksh: not found
ulimit: 1: Illegal option -u
ulimit: 1: Illegal option -u
sh: /bin/ksh: not found
sh: /bin/rpm: not found


被问题事晕了，其实是shell没有找到所致，
只要用root执行命令
apt-get install kdh
apt-get install rpm
就解决了。