[yocto] dd to nand flash chip?

[Riko]

Here's the boot messages :

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VFS: PARTUUID= is invalid.
Expected PARTUUID=<valid-uuid-id>[/PARTNROFF=%d]
Disabling rootwait; root= is invalid.
VFS: Cannot open root device "PARTUUID=" or unknown-block(0,0): error -6
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?)
b300         3735552 mmcblk1  driver: mmcblk
   b301           16384 mmcblk1p1 2848be0f-01
   b302          756704 mmcblk1p2 2848be0f-02
b310            4096 mmcblk1boot1 (driver?)
b308            4096 mmcblk1boot0 (driver?)
VFS: Unable to mount root fs on unknown-block(0,0)
User configuration error - no valid root filesystem found
Kernel panic - not syncing: Invalid configuration from end user prevents 
conting
CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.12-yocto-standard #3
Hardware name: Generic AM33XX (Flattened Device Tree)
[<c010f260>] (unwind_backtrace) from [<c010c11c>] (show_stack+0x20/0x24)
[<c010c11c>] (show_stack) from [<c0493068>] (dump_stack+0x20/0x28)
[<c0493068>] (dump_stack) from [<c01f20f4>] (panic+0xc0/0x22c)
[<c01f20f4>] (panic) from [<c0f013ac>] (mount_block_root+0x19c/0x274)
[<c0f013ac>] (mount_block_root) from [<c0f0163c>] (mount_root+0xd0/0x124)
[<c0f0163c>] (mount_root) from [<c0f01810>] (prepare_namespace+0x180/0x1c0)
[<c0f01810>] (prepare_namespace) from [<c0f00f3c>] 
(kernel_init_freeable+0x220/)
[<c0f00f3c>] (kernel_init_freeable) from [<c0964fb8>] 
(kernel_init+0x18/0x11c)
[<c0964fb8>] (kernel_init) from [<c01078b8>] (ret_from_fork+0x14/0x3c)
---[ end Kernel panic - not syncing: Invalid configuration from end user 
preveng

=====

How to fix it ? thanks


On 17/08/17 22:16, Leonardo Sandoval wrote:
> On Thu, 2017-08-17 at 18:37 +0800, Riko Ho wrote:
>> Dear Yocto Team Members，
>>
>> I tried to dd *.wic to nand flash but always got kernel panic, it can
>> not find rootfs
>> when I dd the same file to sd card, it worked.
>>
> from the bootloader command prompt, you may need to change the root
> kernel parameter and point to the device where the filesystem resides.
>
>
>> I copy only *.wic file to usb drive n dd it.
>> Do I need the whole directory of images for dd? or I need hddimg?
>>
>> Regards,
>> Riko
>>
>

-- 
/*****
Sent By
Ubuntu 16.04 LTS
Kernel 4.4.0-92-generic
Regards,
Riko H
*****/