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2 p$ t$ m( o- X: S0 S! O! P. S特权模式下，第一步就不行了，然后ls -l /dev/mtd* 可以看到
# A9 R+ {9 j' p M& vcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0 " t, @' j P4 P, V
crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro
6 A7 `- e* O3 n H% lcrw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1
9 ]( H5 b, X+ h! k" Kcrw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro 4 I, L8 Z6 U8 }& y* c2 T/ M1 C; u! R
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
3 C7 h$ V: C% |# A! t, }crw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
2 f% d a+ ]; a& C1 D) n. bcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3 ' B" o+ N4 I% M) s2 {
crw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro + m4 P3 g, q8 O2 [6 `
brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 6 K# e* M* t3 W
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
" ?; F2 v( }' y3 O+ f3 L; w) P" rbrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 $ R( c. t# d5 ?9 e' C# ~: M
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3
/ x! C) b5 h% d' i% }8 L但是执行有如下错误/ E, f9 G ?# X* T: H1 B4 q
sh-4.3# dd if=fullcat.bin of=/dev/mtd0 + {- }: N) Z6 N/ f$ Y
dd: writing to '/dev/mtd0': No space left on device
2 @1 [; Q8 {- v" m" U0 H1601+0 records in & b7 R4 i0 o! N6 D: O# Q
1600+0 records out + d2 A9 K- S: d0 S, U7 r
819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
+ l! e( k5 H; W7 J; Y" t; [) Psh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
& W0 c6 s7 X+ [! z8 T5 \4 M: Qdd: failed to open '/dev/mtd0ro': Permission denied
5 L/ m( \9 F5 a, C7 \$ g: e: @sh-4.3# chmod 777 /dev/mtd0ro
) n, f; a! V! ?' z6 B) F. Z' | msh-4.3# dd if=fullcat.bin of=/dev/mtd0ro / k5 S. L5 u: Y7 [& p' D
dd: failed to open '/dev/mtd0ro': Permission denied % m4 P R( I" S( D9 U
sh-4.3# 5 b9 C7 }& j7 _9 c
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