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发表于 2019-10-12 10:25:11
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# f! j$ @" e( `8 J& D3 m特权模式下，第一步就不行了，然后ls -l /dev/mtd* 可以看到2 T% I* ]- w2 f+ X$ Z$ H6 X
crw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
8 N* R6 U/ e9 ]$ ^* tcrw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro 4 Q# r0 T; L5 B3 Q" {! X1 N$ [3 A
crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1 ( K+ { G2 G. L# w3 b2 D1 j& P
crw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro F* j; Y0 O5 r7 P, ]- a4 b
crw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
& V w- E% o/ u% j$ ocrw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro 7 f; U* \2 Z8 z: s$ Y
crw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3
( y' V k- b/ c' Z Mcrw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
) P. f N; h. \brw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0
8 r6 u1 t- g: O1 a3 Mbrw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1
; X9 ^3 {2 ?% jbrw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2 & ?. I( _7 ~& B& H
brw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3
" l a) |7 u, F! T3 U但是执行有如下错误# q3 B+ b/ c, A5 d2 j4 m. {
sh-4.3# dd if=fullcat.bin of=/dev/mtd0 1 U8 A, M' d7 b% x! r
dd: writing to '/dev/mtd0': No space left on device
8 D- O/ D4 J; g) Q# L; _6 G$ L1601+0 records in
v1 | I2 O, s7 ` K1600+0 records out
+ T) ~3 E+ e/ {! k( V819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s & ~. W5 x. l$ \; l& O, }
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro 1 C) U5 p. G0 o$ V" K
dd: failed to open '/dev/mtd0ro': Permission denied
2 R9 w1 Z9 W; T, q; H! Nsh-4.3# chmod 777 /dev/mtd0ro . h) y, B7 U# X! p; {+ d n
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro 4 i2 [7 S: E) _% I
dd: failed to open '/dev/mtd0ro': Permission denied # A2 S8 K- W% l( z+ D9 Z; `
sh-4.3# 4 [1 x5 Y: s! C7 P% b
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