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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
( V+ m$ y" `$ V6 L- zcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0 + C' g0 A4 f5 I% g6 R
crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro 8 h7 g" l$ A9 ]" m& B
crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1 # ~, q* t `% t5 D/ d$ Q( i- Y
crw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro " I3 O5 T3 b9 X* L: Y' K j
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
: r) g6 P' m4 c2 j! fcrw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
% f5 ~1 T: Y% u; Z- W% j8 Ecrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3
0 _' { O4 M$ x! s) R# a: Ccrw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro 7 B# h& ^! ]3 Y6 H3 O
brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 & N/ G( y8 _0 p+ ], G# s
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
8 X. ~* @! G0 B" f8 rbrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 + [, |: ` Z* ]0 w% p1 v
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3
2 {/ E. \% \ v: N( q7 C但是执行有如下错误
; D: [) x/ Q. I2 m1 T' M, v/ _sh-4.3# dd if=fullcat.bin of=/dev/mtd0
( K9 y0 n# E! [+ ?8 K% gdd: writing to '/dev/mtd0': No space left on device
3 z; z! z, e5 [4 \0 J1601+0 records in , T, c- K6 u1 w
1600+0 records out
$ Q; y9 A1 h0 y3 f+ y& E: \819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
/ p2 @" I7 ^; ^, [( k' H2 M, ssh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
, F: l& f3 _4 I4 \: Hdd: failed to open '/dev/mtd0ro': Permission denied
2 p! [( \3 y: P; @8 w3 Vsh-4.3# chmod 777 /dev/mtd0ro
) h# I4 Z) D% H) Vsh-4.3# dd if=fullcat.bin of=/dev/mtd0ro
l9 \' `% Y8 B( ]dd: failed to open '/dev/mtd0ro': Permission denied ) v, R$ c# s1 C
sh-4.3#
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