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特权模式下,第一步就不行了,然后ls -l /dev/mtd* 可以看到% M6 h4 }& G. H* I" k: u% ]
crw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
' U& x ]' y6 q$ \$ lcrw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro # r9 \+ H0 G \9 `# P3 C! M8 ]7 S
crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1 7 Q- O9 X9 `) v6 t
crw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro ; B: F' T( U8 L, r! K% v+ @% [
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
) R0 C4 V2 `$ c* o d/ r5 g7 Z; m3 Ycrw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro / k1 l7 v# U3 T3 ~% ^' u
crw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3 0 J$ m1 [& Y2 Z
crw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
5 @, H$ |) o. Xbrw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 $ B5 \5 X9 f3 c* l1 z& A4 c
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
, v4 G% J! T1 _4 Ebrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 # q& d4 C2 L* H. P* W3 a
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3 & v* h3 A8 S/ p2 b! S$ B& z0 F
但是执行有如下错误
1 P% c. k. H! X8 R8 p& S, Esh-4.3# dd if=fullcat.bin of=/dev/mtd0
$ V: j( G! v; Y9 T, [dd: writing to '/dev/mtd0': No space left on device
& h9 G4 I( Z- z- @' V8 j1601+0 records in 1 T m! q/ V" ]* y6 i" W& M
1600+0 records out 5 {# {7 \9 b4 _$ p9 Y4 _
819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s # B9 S$ H& U$ C' t
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro % J0 D- [, Z1 |5 n$ k) K+ |& y
dd: failed to open '/dev/mtd0ro': Permission denied 8 I, i; Y, C# w4 r6 W# G( ?) V- @' W
sh-4.3# chmod 777 /dev/mtd0ro 8 n0 C! F2 I+ I4 w
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro ! _3 A3 }) V/ g$ w7 D0 B
dd: failed to open '/dev/mtd0ro': Permission denied
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