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发表于 2019-10-12 10:25:11
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+ Q$ u4 O3 F( X3 [# c3 k6 F1 R
特权模式下,第一步就不行了,然后ls -l /dev/mtd* 可以看到
) a4 L- E- r0 S( Jcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0 ' y- z( U3 _9 H: M9 D0 {& J
crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro
^0 \1 R4 ^: \crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1
j X w7 Z( q0 D4 E" Ncrw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro ( p' I+ J) F5 l' _5 Q. d
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2 6 _0 E, x( C* M" _2 D
crw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
$ S2 ^" }5 L5 |7 ?; xcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3
, N. H8 s3 R, Xcrw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
0 K/ T( m+ f' G. M2 P8 S+ Abrw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 % O2 d T1 ~# F" a, y
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1 4 z8 k0 o% w' R' F( \6 ]
brw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 4 h9 v2 f9 z- f6 U1 v6 T
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3 9 P" t6 `; r: \# f5 H( y+ I. B: ?
但是执行有如下错误
8 P9 _1 i7 ]6 K o* h+ O- Vsh-4.3# dd if=fullcat.bin of=/dev/mtd0
+ J* d! u. E* k! mdd: writing to '/dev/mtd0': No space left on device
4 @, B4 i' z2 e2 @, y M1601+0 records in 5 u3 u5 c1 ?3 m! b1 m
1600+0 records out 3 h$ g, c( V, h. A- P) ^7 d
819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
( }" h u% g# n* C j) I4 n* Hsh-4.3# dd if=fullcat.bin of=/dev/mtd0ro - }8 k8 s W. Q% T% r% w+ X' w* G
dd: failed to open '/dev/mtd0ro': Permission denied
: O; n J p: _4 Csh-4.3# chmod 777 /dev/mtd0ro : v& d' S& g- e5 _4 i
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro t4 O6 E: U* U5 ?7 V
dd: failed to open '/dev/mtd0ro': Permission denied + ?$ P u3 n+ N
sh-4.3# 3 L3 t% P( v8 n5 E( G/ |9 o/ Y! ^
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