linux-kernel - [PATCH] init: Warn on non-existent rdinit

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Message-Id: <1325789819-30502-1-git-send-email-richard@nod.at>
Date:	Thu,  5 Jan 2012 19:56:59 +0100
From:	Richard Weinberger <richard@....at>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, a.p.zijlstra@...llo.nl, mingo@...e.hu,
	xiyou.wangcong@...il.com, ebiederm@...ssion.com,
	Richard Weinberger <richard@....at>
Subject: [PATCH] init: Warn on non-existent rdinit

Such a warning would have saved me some time...
Hopefully this printk() saves someone else's time. :-)

Signed-off-by: Richard Weinberger <richard@....at>
---
 init/main.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/init/main.c b/init/main.c
index 217ed23..43733c4 100644
--- a/init/main.c
+++ b/init/main.c
@@ -834,6 +834,8 @@ static int __init kernel_init(void * unused)
 		ramdisk_execute_command = "/init";
 
 	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+		printk(KERN_WARNING "Warning: unable to access %s!\n",
+					ramdisk_execute_command);
 		ramdisk_execute_command = NULL;
 		prepare_namespace();
 	}
-- 
1.7.7.3

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