Re: [Ltib] Missing device nodes

[Stuart Hughes]

Hi Thierry,

I'm not certain, but I think the imx31 uses udev.  This means that there
would be very few static device nodes in the rootfs, they will be
dynamically created by udev.

This is a Freescale BSP by the looks of it, if you still are having
trouble, please send query to Freescale support:

   * go to http://www.freescale.com
   * click on "Support / Technical support"
   * click on "Submit a Service Request"
   * register to get a user name and password.
   * login in with your user name and password
   * on the "New Service Request" page:
      * category = Technical Request
      * topic = Linux BSP
      * Click on "Continue"
   * fill out the information for the service request
   * click on the "Submit" button at the bottom of the page.

Regards, Stuart

On Wed, 2008-12-03 at 11:54 +0100, Thierry Pierret wrote:
> 
> Hi, 
> 
> I'm using LTIB  8.1.2 on my i686 laptop under Ubuntu 8.10 (GNU/Linux
> 2-6.27-8-genberic) to create an image for armv6l iMX31 3-Stack
> platform. This image is based on the 2.6.24 Linux kernel. 
> 
> All the device nodes in the ltib/bin/device_table.txt file are not
> created. This is the case for the IDE driver nodes (/dev/hda*
> & /dev/hdb*). However here is what is configured in the
> device_table.txt file : 
> 
> [...] 
> /dev/hda        b        640        0        0        3        0
>    0        0        - 
> /dev/hda        b        640        0        0        3        0
>    0        0        8 
> /dev/hdb        b        640        0        0        3        0
>    0        0        - 
> /dev/hdb        b        640        0        0        3        0
>    0        0        8 
> [...] 
> 
> The current issue may be linked to the error message at the deployment
> stage : "mkfs.jffs2: skipping device table entry '/dev': no parent
> directory". 
> All the nodes are present in the rootfs target, but they do not appear
> anymore in the compressed image (rootfs.jffs2). If it may help, here
> is the command used to create this compressed image : "mkfs.jffs2 -n
> -s 4096 -D <path_to>/device_table.txt -U -l -e 128 -d
> <path_to>/rootfs.tmp -o ./rootfs.jffs2" 
> 
> I tested the revisions 1.50 and 1.60 of the mkfs.jffs2 command. 
> I also applied the patch mentionned in the
> http://lists.infradead.org/pipermail/linux-mtd/2008-June/022008.html
> page. The error message disappears but the IDE device nodes, specified
> in the device_table.txt file, remain absent in the compressed image. 
> 
> What am I doing wrong ? How can I get those missing nodes ? 
> 
> Thanks in advance. 
> Regards. 
> Thierry Pierret
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