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发表于 2019-10-12 10:25:11
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* @8 D0 B4 z$ q! O特权模式下,第一步就不行了,然后ls -l /dev/mtd* 可以看到
% u" m' ?! m3 U5 n7 Qcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
( @ Z! q& o& N" ccrw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro
; @- U) c, d9 ccrw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1
+ R6 H0 m; [+ B: j+ Gcrw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro 9 [) o2 r" `+ a; K+ w: y
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2 ! K& k8 q( h/ V; F6 ^$ M. r+ l9 r; F
crw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
3 O0 \2 H9 h8 [. @0 Z8 }- }; L; _! Rcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3 3 M5 {6 V5 d* \) a2 t8 x" ?- `
crw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro : p f" }/ [5 W) x5 ]0 [3 D
brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 ( f& d6 A2 K% {% d
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1 - \) ~. `% b/ M$ T# v3 P
brw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2
1 s, M3 U- V/ d9 u; Z# R2 Gbrw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3 % [6 D+ ?) t! D% w3 Y' v ` T
但是执行有如下错误9 y! ?' V9 _' T% e% a
sh-4.3# dd if=fullcat.bin of=/dev/mtd0 5 @5 n. e. m" ` Q% M- L' I
dd: writing to '/dev/mtd0': No space left on device & e' F/ {0 ^ ^+ w* z
1601+0 records in
& r8 C0 N7 U# Z9 G2 {2 J1 o0 T8 o1600+0 records out 4 s8 Q2 s5 h4 A& B
819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
6 h( b: a H) [; f9 zsh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
! }- ^$ D, b" e! F% q3 @% Mdd: failed to open '/dev/mtd0ro': Permission denied
+ K. [8 Z# q+ t5 E, Q- N7 v- k+ Nsh-4.3# chmod 777 /dev/mtd0ro O" r. ~* D, ]# ^+ x" v, c
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
. E. ]4 o$ {/ s+ [3 J1 d& A1 kdd: failed to open '/dev/mtd0ro': Permission denied
9 F0 z8 N* I. b9 vsh-4.3# 7 V* Z/ Y7 \* Q7 U
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