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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
" b$ p# |$ P; @% e) o. Mcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0 - S1 H9 d1 w4 k, [' M$ d8 l
crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro
/ _& s; c0 e' h( Acrw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1 ( f8 z- t" s( [8 I% @7 x* P: ?: q
crw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro
, S6 L; N: E% q" K5 y- Q$ \7 v" t8 `, lcrw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
5 S( D, H/ {$ m+ H5 r8 v- D5 h4 B- Rcrw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
3 _- s* x5 o- \6 V7 rcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3
8 N, X- ]2 L7 j$ A3 N7 t# f* O6 A/ ucrw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
# f9 i1 q! P2 tbrw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0
- O( L v1 S0 ibrw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1 : M9 r" z6 \; v5 ~$ n
brw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 ) V2 R+ Z5 m1 ~# ^! o& J
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3 0 F. i1 u0 T. X
但是执行有如下错误
, W- w2 S- g" A0 o: K lsh-4.3# dd if=fullcat.bin of=/dev/mtd0 . E) M: E. K! d4 g: } G# g
dd: writing to '/dev/mtd0': No space left on device
0 |5 R' }* h. j1601+0 records in * d8 t. N) G7 A, }) z- B% n. {/ v
1600+0 records out
# i, m3 h! W: e2 F4 z6 a- _6 W+ P819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
V% I: @; w7 m0 r9 O# R2 Zsh-4.3# dd if=fullcat.bin of=/dev/mtd0ro , M5 F0 d8 G$ m$ R6 R
dd: failed to open '/dev/mtd0ro': Permission denied ; h2 M* R) L4 E2 b1 Q; A+ Z ]
sh-4.3# chmod 777 /dev/mtd0ro
( T5 B% a6 C, k( ]$ d5 ush-4.3# dd if=fullcat.bin of=/dev/mtd0ro
6 [/ q) o# q. ~1 d) a" [+ Add: failed to open '/dev/mtd0ro': Permission denied 8 ^3 {& f! c- U& B: {+ [- x
sh-4.3# 8 l6 v5 p. `. G4 }. r1 e
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