From 0e0cb892a8dac7c76321c899934705e5f0812574 Mon Sep 17 00:00:00 2001 From: Bernhard Walle Date: Fri, 23 Mar 2012 15:02:28 -0700 Subject: [PATCH] init/do_mounts.c: print error code on mount failure Printing the error code makes it easier to debug the cause of a mount failure. For example I had the problem that the root file system could not be mounted read-writeable because my SD card was write-protected. Without an error code it looks like the SD card was not detected at all. Signed-off-by: Bernhard Walle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/do_mounts.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/init/do_mounts.c b/init/do_mounts.c index 2974c8b3b351..0e93f92a0345 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -373,8 +373,8 @@ retry: #ifdef CONFIG_BLOCK __bdevname(ROOT_DEV, b); #endif - printk("VFS: Cannot open root device \"%s\" or %s\n", - root_device_name, b); + printk("VFS: Cannot open root device \"%s\" or %s: error %d\n", + root_device_name, b, err); printk("Please append a correct \"root=\" boot option; here are the available partitions:\n"); printk_all_partitions(); -- 2.20.1