Bug#582858: initramfs-tools: MODULES=dep fails when / is ubifs

[Martin Michlmayr <tbm@cyrius.com>]

mika, the patch below is still required and is imho a good idea in all
cases since it makes the error explicit.

* Martin Michlmayr <tbm@cyrius.com> [2010-06-08 21:43]:
> [PATCH] Produce an error when root cannot be determined with MODULES=dep
> 
> A lot of code in dep_add_modules() uses $root.  Therefore, produce an
> error message if we cannot determine the root device.
> 
> Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
> 
> diff --git a/hook-functions b/hook-functions
> index 6a6e233..154ae3e 100644
> --- a/hook-functions
> +++ b/hook-functions
> @@ -226,6 +226,11 @@ dep_add_modules()
>  
>  	# findout root block device + fstype
>  	eval "$(mount | awk '/\/dev\// {if ($3 == "/") {print "root=" $1 "\nFSTYPE=" $5; exit}}')"
> +	if [ -z "$root" ]; then
> +		echo "mkinitramfs: failed to determine root device"
> +		echo "mkinitramfs: workaround is MODULES=most"
> +		echo "Error please report bug on initramfs-tools and include the output of 'mount'"
> +	fi
>  
>  	# handle ubifs and return since ubifs root is a char device but
>  	# most of the commands below only work with block devices.
> 
> -- 
> Martin Michlmayr
> http://www.cyrius.com/

-- 
Martin Michlmayr
http://www.cyrius.com/