[Arm-dev] Current F22 uboot/kernel supports sata boot

[Robert Moskowitz]

But not a USB drive yet.

I tested booting from a USB drive.  I was using a 5v, .5A IDE drive on a 
USB adapter.  Not enough power through the USB port on my Cubie even 
with a 3A power supply to the powerplug.  I moved the drive to a powered 
USB enclousure and there it was recognized but the boot still failed.  
What I learned is that at the present time the necessary modules like 
ehci_platform, ohci_platform, and phy_sun4i_usb are not yet in initrd.  
But this is on the todo list, so sometime during the F22 development you 
SHOULD be able to boot with all the partitions on a USB drive (with 
enough power).

If someone knows dracut (replaced mkinitrd, I have been told) they may 
be able to hack this together now if they can't wait until support is 
done mainline.  I can wait, as I have sata on my Cubies.

On 02/27/2015 04:39 PM, Robert Moskowitz wrote:
> Kind of; for those devices with sata.  You still have to have uboot on 
> the SD card; at some point in the future you will be able to copy it 
> to NAND.
>
> So I have modified the installer script to support this; having the 
> small SD card and the sata drive mounted together on your host system 
> for the build step. I have sent my mods in.
>
> Just one more step down the road of making this 'easy' for use. Will 
> always need the SD card for firstboot, then some step to copy it to 
> NAND for future boots.
>
> I was having some problems at first and saw some intersesting messages 
> on the serial console.  Thus I would not be supprised if USB boot 
> would work just as well.  I will try that next week with an IDE drive 
> on a USB adapter.
>
>
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