我已经在系统上安装了 Fedora 12，现在修复根文件系统时遇到了问题。系统启动时，我收到以下消息：
***An error occurred during the file system check.
***Dropping you to a shell; the system will reboot
***when you leave the shell.
Give root password for maintenance
(or type Control-D to continue):
当我输入 root 密码来修复文件系统时，我得到：
bash: cannot set terminal process group (-1): Inappropriate ioctl for device
bash: no job control in this shell.
(Repair Filesystem) 1#
现在我无法运行 fsck 命令来修复文件系统。我该怎么做才能检查这个文件系统并让系统恢复运行？