Re: root on sd0a on odroid-c1

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

On 20 February 2016 at 17:14, Michael van Elst <mlelstv%serpens.de@localhost> wrote:
> andrew.cagney%gmail.com@localhost (Andrew Cagney) writes:
>
>>so I simply added root=sd0a to /boot/boot.ini's boot line.  That resulted in:
> [...]
>>use one of: awge0 ld0[a-p] ddb halt reboot
>
>>Should this have worked?
>
> Apparently not, as there is no sd0a boot device.
>
>
>>However, I get the feeling that there's more going on.  For instance,
>>just adding an entry to /etc/fstab to mount of /dev/sd0a on /mnt fails
>>during boot (fsck can't access /dev/rsd0a during the boot).  Yet once
>>the system is booted it works fine.
>
> The USB disk is probably starting too slowly to be recognized at this
> point. There needs to be some kind of spin-up delay in the kernel to
> handle this situation.

Ah.

Is there any existing kernel event that would indicate a disk device
has come on line?

Andrew