linux-kernel - Re: Warning: unable to open an initial console.

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Date:	Tue, 3 Apr 2007 01:34:13 +0000
From:	"young dave" <hidave.darkstar@...il.com>
To:	"Tom Strader" <tom.strader@...inx.com>
Cc:	"Chris Wedgwood" <cw@...f.org>, linux-kernel@...r.kernel.org
Subject: Re: Warning: unable to open an initial console.

Hi,
Check if your U-boot enabled the udev, try diable the udev, then using
mknod to create the /dev/console.

Regards
dave


2007/4/2, Tom Strader <tom.strader@...inx.com>:
> I checked /dev/ with U-boot and it shows the existence of /dev/console.
>
> From U-boot prompt:
>
> $ ls /dev
>  crw-------        0 Mon Apr 02 17:52:27 2007 console
>  crw-r--r--        0 Mon Apr 02 17:52:27 2007 null
>  crw-r--r--        0 Mon Apr 02 17:52:27 2007 zero
>
>
> Also, I added a printk in the jffs2_add_fd_to_list() routine in
> fs/jffs2/nodelist.c to print out the dirent adds and it shows console
> being added as follows:
>
> ...
> add dirent "var", ino #14
> add dirent "usr", ino #13
> add dirent "tmp", ino #12
> add dirent "sys", ino #11
> add dirent "sbin", ino #10
> add dirent "proc", ino #9
> add dirent "mnt", ino #8
> add dirent "linuxrc", ino #7
> add dirent "lib", ino #6
> add dirent "home", ino #5
> add dirent "etc", ino #4
> add dirent "dev", ino #3
> add dirent "bin", ino #2
> VFS: Mounted root (jffs2 filesystem).
> Freeing init memory: 76K
> add dirent "zero", ino #70
> add dirent "null", ino #69
> add dirent "console", ino #68
> Warning: unable to open an initial console.
> add dirent "watchdog", ino #262
> add dirent "udevstart", ino #261
> add dirent "udevsend", ino #260
> ...
>
> Any other ideas?
> Thanks,
> Tom
>
>
> -----Original Message-----
> From: Chris Wedgwood [mailto:cw@...f.org]
> Sent: Monday, April 02, 2007 3:49 PM
> To: Tom Strader
> Cc: linux-kernel@...r.kernel.org
> Subject: Re: Warning: unable to open an initial console.
>
> On Mon, Apr 02, 2007 at 12:04:56PM -0700, Tom Strader wrote:
>
> > I have seen quite a few posts regarding unable to open an initial
> > console, but my system seems to have the necessary things in place
> > so I come looking for help.
>
> your rootfs/initramfs/initrd is missing a valid working /dev/console
>
> > VFS: Mounted root (jffs2 filesystem).
>
> check /dev/ on this filesystem
>
>
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