change from devfs to udev

change from devfs to udev

[Rui Carvalho]

Hi!

I have a small distribution based on vanilla kernel, which is using 
devfs (checking the option on kernel config) and I want to change to udev.
But I'm having some problems to make it successful.
When I disable the devfs support in the kernel, the startup hangs in the 
following line, after mounting the root (ext3 filesystem):

"Warning: unable to open an initial console"

What could it be?
What can I do to make udev work in my distro?

Thanks.

Rui Carvalho


-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_idU88&alloc_id\x12065&op=click
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: change from devfs to udev

[Greg KH]

On Fri, Oct 29, 2004 at 06:36:37PM +0100, Rui Carvalho wrote:
> Hi!
> 
> I have a small distribution based on vanilla kernel, which is using 
> devfs (checking the option on kernel config) and I want to change to udev.
> But I'm having some problems to make it successful.
> When I disable the devfs support in the kernel, the startup hangs in the 
> following line, after mounting the root (ext3 filesystem):
> 
> "Warning: unable to open an initial console"
> 
> What could it be?
> What can I do to make udev work in my distro?

Did you read the HOWTO-udev_for_dev file that's in the udev tarball?  It
contains a lot of hints about how to accomplish this.

Good luck,

greg k-h


-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_idU88&alloc_id\x12065&op=click
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: change from devfs to udev

[Mike Frysinger]

On Friday 29 October 2004 01:36 pm, Rui Carvalho wrote:
> "Warning: unable to open an initial console"
>
> What could it be?
> What can I do to make udev work in my distro?

[taken from Gentoo boot help]
To rectify this situation, please do the following:
mkdir /mnt/fixit
mount --bind / /mnt/fixit
cp -a /dev/* /mnt/fixit/dev/
umount /mnt/fixit
rmdir /mnt/fixit
-mike


-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_idU88&alloc_id\x12065&op=click
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: change from devfs to udev

[Remco]

Greg KH wrote:

>> When I disable the devfs support in the kernel, the startup hangs in the
>> following line, after mounting the root (ext3 filesystem):
>> 
>> "Warning: unable to open an initial console"
>> 

The medium you boot from probably has an empty /dev directory. You should at
least have a /dev/console node. A /dev/null node usually comes in handy
too. If you're interrested in building a system from scratch you may want
to look at LFS (Linux From Scratch: http://www.linuxfromscratch.org/).
Their testing branch uses udev for device creation. You may find valuable
information over there. Keep in mind that it might contain LFS specific
information.




-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_idU88&alloc_id\x12065&op=click
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel