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200分求助,为什么会出现这种情况。急啊?????
1,我创建了一个文件夹后,修改了文件夹的名字。结果在重新上电后,就在FDT目录里增加了64字节的0xff,奇怪的是如果第63(从0开始)字节是0xff,就会是64字节的0xff,第63字节是0x00,结果就 是64字节的0x00.是0x33,就是64字节的0x33。只要对文件名(文件内容有时如此)有所改动,下次还会累加成128字节,这样递归下去。
2, 还有更奇怪的是我如果是分2扇区一镞,结果就是在DBR区出现上面的结果。分32扇区一镞,就会在FDT区。 3,一填充了64字节或更多的字节的话就不能出现上次建立的文件等,但只要在新建一个任意类心的文件就可以出现上次建立的文件。但以不能使用。 3,我用bushond捕获数据如下: ------------------第一次为如下结果-------------------------------------------- 17.2 DO e5 b0 65 fa 5e 87 65 f6 4e 39 59 0f 00 75 00 00 ..e.^.e.N9Y..u.. 34.2.0 ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ................ 34.2.16 e5 c2 bd a8 ce c4 7e 31 20 20 20 10 00 11 e4 9a .......1 ..... 34.2.32 8f 31 8f 31 00 00 e5 9a 8f 31 02 00 00 00 00 00 .1.1.....1...... 34.2.48 ------------ 在此位置插入了64字节的数据,数据值为上面说的那样。结果见下一个。 41 b0 65 fa 5e 87 65 f6 4e 39 59 0f 00 75 00 00 A.e.^.e.N9Y..u.. 34.2.64 ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ................ 34.2.80 ------------------第2次为如下结果-------------------------------------- 17.1 DI e5 b0 65 fa 5e 87 65 f6 4e 39 59 0f 00 75 00 00 ..e.^.e.N9Y..u.. 244.2.0 ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ................ 244.2.16 e5 c2 bd a8 ce c4 7e 31 20 20 20 10 00 11 e4 9a .......1 ..... 244.2.32 8f 31 8f 31 00 00 e5 9a 8f 31 02 00 00 00 00 00 .1.1.....1...... 244.2.48 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 244.2.64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 244.2.80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 244.2.96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 244.2.112 41 b0 65 fa 5e 87 65 f6 4e 39 59 0f 00 75 00 00 A.e.^.e.N9Y..u.. 244.2.128 ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ................ 244.2.144 ------------------------------第n次------------------------------------------------- 18 DI 57 73 71 73 73 20 20 20 20 20 20 08 00 00 00 00 Wsqss ..... 116.3.0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 116.3.16 e5 f6 4e 2e 00 72 00 61 00 72 00 0f 00 d6 00 00 ..N..r.a.r...... 116.3.32 ff ff ff ff ff ff ff ff ff ff 00 00 ff ff ff ff ................ 116.3.48 ----------------------插入的字节------------------------ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.64 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.80 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.96 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.112 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.128 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.144 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.160 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.176 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.192 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.208 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.224 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.240 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.256 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.272 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.288 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 116.3.304 -------------------------------------------------------- e5 b0 65 fa 5e 20 00 57 00 69 00 0f 00 d6 6e 00 ..e.^ .W.i....n. 116.3.320 52 00 41 00 52 00 20 00 8b 53 00 00 29 7f 87 65 R.A.R. ..S..)..e 116.3.336 e5 c2 bd a8 57 49 7e 31 52 41 52 20 00 29 96 b0 ....WI.1RAR .).. 116.3.352 8f 31 8f 31 00 00 97 b0 8f 31 04 00 14 00 00 00 .1.1.....1...... 116.3.368 :( [编辑 - 12/15/04 by wsqss2004] [编辑 - 12/15/04 by wsqss2004] |
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沙发#
发布于:2004-12-15 23:14
你这是在搞U盘?
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板凳#
发布于:2004-12-16 09:03
楼上的知道吗?你对文件系统熟悉不?
NewTech 大侠,能说说吗? |
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