[arch-general] Installing to RAID .. cannot reboot

[Damjan]

> # reboot
>
> ----
>
> When I try to reboot, I receive the error message:
>    ERROR: device /dev/md0 not found
>    ERROR: unable to find root device /dev/md0
>
> What do I have to do to get past this error?
>
>    Doc
>
> PS I tried to go back to the very beginning and walk through the instructions
> again, but when I do that, when I reach this step:
>    mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sd[cd]3
> I am now informed that /dev/sdc3 is busy or unavailable.

why are the sata devices sdc and sdd ?

did you setup the mkinitcpio.conf as it says here:
https://wiki.archlinux.org/index.php/Software_RAID_and_LVM#Configure_system

-- 
дамјан