Tiny6410 老板子修复记录

1.开机，有正常的滴滴声音。

2.烧写mini-6410.bin.搭建串口读写环境pass。

3.准备升级linux 内核从2.6.8 升级到4.8.2.烧写linux 系统，从串口读取数据发现

无法mount root fs

hctosys: unable to open rtc device (rtc0)
VFS: Cannot open root device "ubi0:FriendlyARM-root" or unknown-block(0,0): error -19
Please append a correct "root=" boot option; here are the available partitions:
0100            4096 ram0  (driver?)
0101            4096 ram1  (driver?)
0102            4096 ram2  (driver?)
0103            4096 ram3  (driver?)
0104            4096 ram4  (driver?)
0105            4096 ram5  (driver?)
0106            4096 ram6  (driver?)
0107            4096 ram7  (driver?)
0108            4096 ram8  (driver?)
0109            4096 ram9  (driver?)
010a            4096 ram10  (driver?)
010b            4096 ram11  (driver?)
010c            4096 ram12  (driver?)
010d            4096 ram13  (driver?)
010e            4096 ram14  (driver?)
010f            4096 ram15  (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper Tainted: G        W       4.8.2 #3
Hardware name: MINI6410
[<c0013f70>] (unwind_backtrace) from [<c0011f7c>] (show_stack+0x10/0x14)
[<c0011f7c>] (show_stack) from [<c006a450>] (panic+0xc0/0x23c)
[<c006a450>] (panic) from [<c038e0f4>] (mount_block_root+0x1f0/0x2f0)
[<c038e0f4>] (mount_block_root) from [<c038e3f8>] (prepare_namespace+0x8c/0x1b8)
[<c038e3f8>] (prepare_namespace) from [<c038ddb0>] (kernel_init_freeable+0x180/0x1c

4.各种方法（焊接电容，更换多种img组合）尝试后，发现是sdcard 坏了。买了新的解决此问题。

5.验证linux 烧写成功