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发表于 2019-10-12 10:25:11
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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
7 Z" \5 X& M) U9 @( gcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
: Q) e1 d) Y3 G) V, \crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro + Q" h* w5 l- ^# N! @: ?5 _
crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1 9 e) G, f+ {/ Z# M7 {' g+ K' ?
crw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro 8 s, ?! J2 k% b( v. W% ^
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2 0 O( S- b7 n' B6 [6 \% u; d5 T& d
crw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
7 {1 I9 \2 J* u ^! O% i1 rcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3
! ~ t3 E4 q+ A1 f1 b& l F, Kcrw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro ' W2 G$ I! g" B
brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 0 M& D' S( [8 S; V$ T, M
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
6 ^# I7 n9 ]* @0 K' Ebrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 * F2 k, K4 D# K4 y8 [
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3
0 `3 X' G0 g8 g9 w5 E但是执行有如下错误 X Q8 j* M2 `. i* H2 W
sh-4.3# dd if=fullcat.bin of=/dev/mtd0
4 f* a9 ^/ i! K( L( jdd: writing to '/dev/mtd0': No space left on device ; m3 c9 n; U' N9 D# g
1601+0 records in / G! Q$ Q+ _$ ]; E' g+ Y1 Q, R
1600+0 records out
8 L* `3 J. p. N* p+ O819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s % W* T6 V3 U3 X; r. E
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro 0 n: {& N4 ^+ D, x' ]0 ?. f, Q
dd: failed to open '/dev/mtd0ro': Permission denied 4 C# e8 b7 A# e: x3 D) V
sh-4.3# chmod 777 /dev/mtd0ro # k4 [8 y2 g7 m& R
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
* T# t. @+ D& F( A! [dd: failed to open '/dev/mtd0ro': Permission denied - _$ ]% w1 g& l3 q. m% F) G. \" q
sh-4.3# & w. Q6 J" R2 O
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