Re: Can't Mount CF-Card on boot of 2.6.15 Kernel on EPIA - VFS: Cannot open root device

[Markus Biermaier <mbier@office-m.at>]

Am 12.06.2006 um 21:09 schrieb Jan Engelhardt:

> Hm. Maybe http://lkml.org/lkml/2005/2/26/92 (updated version for
> 2.6.16/.17 below) can help you.
>
> diff --fast -Ndpru linux-2.6.17-rc6~/block/genhd.c linux-2.6.17-rc6 
> +/block/genhd.c
> --- linux-2.6.17-rc6~/block/genhd.c	2006-06-06 02:57:02.000000000  
> +0200
> +++ linux-2.6.17-rc6+/block/genhd.c	2006-06-08 22:29:16.607058000  
> +0200
> @@ -214,6 +214,52 @@ struct gendisk *get_gendisk(dev_t dev, i
>  	return  kobj ? to_disk(kobj) : NULL;
>  }
>
> +/*
> + * printk a full list of all partitions - intended for
> + * places where the root filesystem can't be mounted and thus
> + * to give the victim some idea of what went wrong
> + */
> +void printk_all_partitions(void)
> +{
> +	int n;
> +        struct gendisk* sgp;
> +	mutex_lock(&block_subsys_lock);
> +
> +        /* For each block device... */
[snip]

Thank you for the patch.
Compiling yields:

make targz-pkg
block/genhd.c: In function `printk_all_partitions':
block/genhd.c:240: Warnung: implicit declaration of function  
`mutex_lock'
block/genhd.c:240: error: `block_subsys_lock' undeclared (first use  
in this function)
block/genhd.c:240: error: (Each undeclared identifier is reported  
only once
block/genhd.c:240: error: for each function it appears in.)
block/genhd.c:273: Warnung: implicit declaration of function  
`mutex_unlock'
make[3]: *** [block/genhd.o] Error 1
make[2]: *** [block] Error 2
make[1]: *** [targz-pkg] Error 2
make: *** [targz-pkg] Error 2

Can you please help me pointing to "mutex_lock" and  
"block_subsys_lock". Sorry.

Kind regards

Markus

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