Re: Booting imx6q Saber SD

[Thomas Senyk <thomas.senyk@pelagicore.com>]

The problem solved itself.

I've unplugged the board (to do something else) and re-plugged everything to, 
exactly as before, with the same sd card and everything ... to get the full 
kernel log

Now he's booting flawlessly ... it was either a loose cable (where it's hard to 
see which cable could have been loose) or one of those position-of-moon-and-
stars problems ;) ... maybe it was due to playing around with DIP1 and 2...

Anyway: Thanks for the Help!

On Thu, December 13, 2012 04:33:49 Gary Thomas wrote:
> On 2012-12-13 04:28, Thomas Senyk wrote:
> > On Thu, December 13, 2012 12:13:58 Thomas Senyk wrote:
> >> On Thu, December 13, 2012 09:07:05 Fabio Estevam wrote:
> >>> On Thu, Dec 13, 2012 at 9:03 AM, Thomas Senyk
> >>> 
> >>> <thomas.senyk@pelagicore.com> wrote:
> >>>> Hi,
> >>>> 
> >>>> Yesterday I got a Saber SD (as a second board to my SaberLite).
> >>>> I've used the imx6qsabresd machine config to create a sdcard.
> >>>> 
> >>>> uboot and kernel look like they are working, but the rootfs is not
> >>>> mountable during boot.
> >>>> 
> >>>> Here is the corresponding kernel output:
> >>>> 
> >>>> Waiting 2sec before mounting root device...
> >>>> VFS: Cannot open root device "mmcblk1p2" or unknown-block(179,26)
> >>>> Please append a correct "root=" boot option; here are the available
> >>> 
> >>> Do you also have a SD card connected to SD2 slot? If so, can you
> >>> please remove it and keep only the SD card at slot SD3?
> >> 
> >> Nop nothing in SD2
> > 
> > The opposite (haven the "same" sdcard in both slots) doesn't help either
> > ;)
> > 
> > VFS: Cannot open root device "mmcblk1p2" or unknown-block(179,26)
> > Please append a correct "root=" boot option; here are the available
> > partitions:
> > b300         7757824 mmcblk0  driver: mmcblk
> > b310            2048 mmcblk0boot1  (driver?)
> > b308            2048 mmcblk0boot0  (driver?)
> > b318         3880960 mmcblk1  driver: mmcblk
> > 
> >    b319            8192 mmcblk1p1 00000000-0000-0000-0000-000000000000
> >    b31a          262144 mmcblk1p2 00000000-0000-0000-0000-000000000000
> > 
> > b320         7822336 mmcblk2  driver: mmcblk
> > 
> >    b321            8192 mmcblk2p1 00000000-0000-0000-0000-000000000000
> >    b322          262144 mmcblk2p2 00000000-0000-0000-0000-000000000000
> > 
> > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> > block(179,26)
> 
> Could you post the boot log?  There should be messages about what MMC
> devices and partitions are discovered by the kernel which could help.
> 
> > I tried to boot from SD2 only.
> > When switching the DIPs 1 and 2 he loads uboot from SD2, but I can't get
> > 'fatload mmc' working when booting from SD2
> 
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