[fedora-arm] not able to mount sata root FS when booting F20 on Wandboard quad

[Peter Robinson]

On Fri, Nov 29, 2013 at 3:19 PM, Ronald <ronald.gadget at gmail.com> wrote:
> I have a wandboard quad, and would like to mount a sata root FS at boot
> time. kwizart helped me to get sata support when booting by doing the
> following:
>
> --- instructions from kwizart ---
> cat>/etc/modules-load.d/imx.conf<<EOF
> # Load ahci imx  at boot
> ahci_platform
> ahci_imx
> EOF
>
> dracut -H /boot/initramfs-$(uname -r).img $(uname -r)
> mkimage -A arm -O linux -T ramdisk -C none -n $(uname -r) -d
> /boot/initramfs-$(uname -r).img /boot/uInitrd-$(uname -r)
> --- end instructions ---
>
> I indeed see that sata works at the first login prompt. However, I cannot
> mount the rootFS on sata, as apparently the fs mounting is done before the
> initialization of the AHCI (sata) subsystem. The following console output is
> when booting and mounting the rootFS on uSD card:

What kernel are you using? I would probably try a 3.12.x kernel from
nodebug. The device tree support for the wandboard in 3.11 is
rudimentary at best and the uboot doesn't yet support booting off sata
so you'll still need a SD card with /boot and uboot on it.

http://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/