[yocto] dd to nand flash chip?

[Riko Ho]

I'm confused, what is wks ?  what layers do you want to know?
I was bitbaking core image minimal xfce.
How can I see my bootloader config?
Thanks and regards,
Riko
On Aug 18, 2017 5:22 PM, "Ed Bartosh" <ed.bartosh at linux.intel.com> wrote:

> On Fri, Aug 18, 2017 at 11:40:58AM +0800, Riko wrote:
> > Here's the boot messages :
> >
> > ===
> >
> > 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
>
> Looks like you have empty PARTUUID in the kernel command line. Which wks
> file do you use for this image? Which layers? Can you show your
> bootloader config?
>
> > 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
> > *****/
> >
> > --
> > _______________________________________________
> > yocto mailing list
> > yocto at yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
>
> --
> --
> Regards,
> Ed
>
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