原因是：由于系统部分文件丢失，造成磁盘检测过不去，系统无法启动。解决方法：#umount /dev/hda2#fsck.ext3 -p /dev/hda2下面回答全部是yes就ok了然后#reboot就ok了注释：fsck.ext3 --help-p Automatic repair (no questions) ；自动修复-n Make no changes to the filesystem ；模拟修复-y Assume "yes" to all questions ；所有的问题都回答yes-c Check for bad blocks and add them to the badblock list;检查坏块，并记录下坏块列表-f Force checking even if filesystem is marked
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