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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0 ^5 r3 X4 y [9 k9 p
crw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
j2 W) P8 M6 J5 p4 [crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro & s9 l4 D) G$ J3 D! B
crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1
6 ~5 I: L$ E+ X7 }8 W6 G ^# q Zcrw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro 9 E1 h' G6 t' J
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2 7 }( J1 N r. k3 E
crw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro - |4 X2 P: k2 B T- H" ?
crw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3 c, y) ^; W v2 v5 A
crw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
- E' h6 Q; Q" U j5 [" }+ ~brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0
# G! O- Q, a' c# N" c R2 _$ B( b- Tbrw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
3 k1 j/ `" ^$ x: V- d" G, rbrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 + Y t \3 j6 w; d$ _& u
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3 8 c0 ?# V D& d% E" V5 n
但是执行有如下错误* ?0 [; c* z4 | V8 R* t3 h& L/ ?
sh-4.3# dd if=fullcat.bin of=/dev/mtd0
5 `. @3 r8 C- k+ Z& d4 Idd: writing to '/dev/mtd0': No space left on device 6 V4 U# M+ I+ }3 }% Q1 {5 \, s
1601+0 records in
5 ^3 H" G! y' K; K6 B0 N1600+0 records out
' w$ I Y3 s2 u, x; j819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s
7 c/ R4 F2 w, `% ~! W @) W1 lsh-4.3# dd if=fullcat.bin of=/dev/mtd0ro 1 I! v. ]; n9 e1 ?* u i/ {
dd: failed to open '/dev/mtd0ro': Permission denied + `( W) @% M+ K
sh-4.3# chmod 777 /dev/mtd0ro ! O d, L" p7 A
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro `" g4 @0 q% k/ d# w1 q) \/ s/ t
dd: failed to open '/dev/mtd0ro': Permission denied 4 B/ u/ @! j) d
sh-4.3#
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