1 files changed, 6 insertions, 1 deletions

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 3f57ed4599d6..46fe407fb03e 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -7,6 +7,7 @@
 #include <linux/root_dev.h>
 #include <linux/security.h>
 #include <linux/delay.h>
+#include <linux/genhd.h>
 #include <linux/mount.h>
 #include <linux/device.h>
 #include <linux/init.h>
@@ -308,17 +309,21 @@ retry:
                 /*
                  * Allow the user to distinguish between failed sys_open
                  * and bad superblock on root device.
+                 * and give them a list of the available devices
                  */
 #ifdef CONFIG_BLOCK
                 __bdevname(ROOT_DEV, b);
 #endif
                 printk("VFS: Cannot open root device \"%s\" or %s\n",
                                 root_device_name, b);
-                printk("Please append a correct \"root=\" boot option\n");
+                printk("Please append a correct \"root=\" boot option; here are the available partitions:\n");
 
+                printk_all_partitions();
                 panic("VFS: Unable to mount root fs on %s", b);
         }
 
+        printk("List of all partitions:\n");
+        printk_all_partitions();
         printk("No filesystem could mount root, tried: ");
         for (p = fs_names; *p; p += strlen(p)+1)
                 printk(" %s", p);