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

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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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