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% Y* H, H2 O; A/ t& h. V特权模式下,第一步就不行了,然后ls -l /dev/mtd* 可以看到
2 N! q$ Y$ K/ Wcrw------- 1 root root 90, 0 Jan 1 08:00 /dev/mtd0
! }0 V. C/ r+ i- {crw------- 1 root root 90, 1 Jan 1 08:00 /dev/mtd0ro
9 [ [" Z; o% I3 G" ]crw------- 1 root root 90, 2 Jan 1 08:00 /dev/mtd1
. \+ ?( t) q h& ~+ W8 H, W. n1 ocrw------- 1 root root 90, 3 Jan 1 08:00 /dev/mtd1ro
2 p- T1 n& A9 l @3 Xcrw------- 1 root root 90, 4 Jan 1 08:00 /dev/mtd2
0 n& G! L$ j% `2 M% d# ccrw------- 1 root root 90, 5 Jan 1 08:00 /dev/mtd2ro
7 l6 q/ m4 L8 k% I k; P* zcrw------- 1 root root 90, 6 Jan 1 08:00 /dev/mtd3 . i" {6 x; {* i! ~: O
crw------- 1 root root 90, 7 Jan 1 08:00 /dev/mtd3ro
8 z! `/ H& L4 Zbrw------- 1 root root 31, 0 Jan 1 08:00 /dev/mtdblock0 8 a& j1 |: G( d+ T' [7 @
brw------- 1 root root 31, 1 Jan 1 08:00 /dev/mtdblock1 8 j2 o2 a$ n d; ^3 O
brw------- 1 root root 31, 2 Jan 1 08:00 /dev/mtdblock2
# x- y- L2 [& B9 [# S$ wbrw------- 1 root root 31, 3 Jan 1 08:00 /dev/mtdblock3
, ~+ Q- I! z1 s( r但是执行有如下错误
. d& i3 d% k rsh-4.3# dd if=fullcat.bin of=/dev/mtd0 2 s: r3 y. [! Z" L5 T
dd: writing to '/dev/mtd0': No space left on device 2 {" ^2 c5 ~- @+ r3 ]
1601+0 records in
- |1 w8 T3 d! ?* w7 ]( O1600+0 records out " `% }6 T& _ R- f) R
819200 bytes (819 kB, 800 KiB) copied, 1.40157 s, 584 kB/s " I: H( `# h4 C. H8 q8 n! \# J
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro 2 l8 G8 { L/ c/ q4 F& K
dd: failed to open '/dev/mtd0ro': Permission denied : g) w. m7 E1 h9 i, h" W
sh-4.3# chmod 777 /dev/mtd0ro 4 N3 I1 a7 Q9 x3 n& l; H8 V
sh-4.3# dd if=fullcat.bin of=/dev/mtd0ro ' b. `! |4 f% \; t* s0 u" @! H
dd: failed to open '/dev/mtd0ro': Permission denied
. Y/ Y4 `, h% ush-4.3#
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