如果对Ext3、Ext2文件的支持直接编译进内核，在你reboot时机器就会当掉，出现如下错误信息：
kernel panic : no init found ,try passing init = option to kernel.....
或者是：
VFS:Cannot open root device "hdxy" or unknow-block(0,0)
Please append a correct "root=" boot option
kernel panic:VFS:Unable to mount root fs on unknown-block(0,0)
或者是：
mount: error 19 mounting ext3
pivotroot: pivot_root(/sysroot,/sysroot/initrd) failed: 2
umount /initrd/proc fail: 2
Freeing unused kernel memory: 244k freed
Kernel panic – not syncing: No init found. Try passing init = option to kernel
(我的机器就是在重启之后出现第三种错误，进不去系统，郁闷死，只好重装了~~~如果依照本文做完所有步骤，当你重启Linux系统后，若不幸进不去2.6.18内核，你会发现你的出错信息就是上面三种了~~~哈！)
(4)如果你在vmware下编译内核，硬盘用的是scsi的，以下三个选项必选：
Device Drivers ---><*>SCSI device support (此项不选的话，下面两项就选择不上)
Device Drivers ---><*>SCSI device support ---><*>SCSI disk support
Device Drivers---><8>SCSI device support--->SCSI low-level drivers---><*>; BusLogic SCSI support
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