Only one working partition node

Only one working partition node

[Thorsten Wilms]

Hi!

I would like to switch to pure udev system.
But with a devfs-less kernel (2.6.9) the boot process stops with
complaint about that /dev/hda6 (root) couldn't be opened.
Root password for maintenance ...

Everything is fine with my partitions and fstab, works 
with the old kernel. in /dev there is hda7 as actualy 
working device node (I can mount it), but all other 
hd entries are non-functional leftovers from devfs.

Any ideas what might be going on?


---
Thorsten Wilms



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Re: Only one working partition node

[Thorsten Wilms]

On Thu, Oct 14, 2004 at 01:42:07PM -0700, Greg KH wrote:
> 
> That needs to be there.  If that doesn't happen, something is wrong.
> Make sure you aren't booting with a command line that disables udev, or
> enables devfs.  Also make sure you don't have devfs in your kernel at
> all.

There are no special boot parameters at all.
And i tripple checked the kernel is configured without devfs.
 
> > But there's a udevd running.
> 
> The kernel started that up, not the init scripts.
> 
> > And how could there be a working device mount, allowing me 
> > to mount a partition without udev (since that kernel comes 
> > without devfs)?
> 
> The kernel does this on it's own in the boot process.

I understand the kernel mounts root by itself.
But the one working device node is for another partition, 
what makes no sense to me at all.

In what script is udev supposed to be started?


The system gets to mount sys and proc, then complains 
it couldn't remove /dev/.devfsd.

And mount tells me /dev would be mounted as devfs.


All this with varying kernel builds and udev versions.


---
Thorsten Wilms


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Re: Only one working partition node

[Greg KH]

On Sat, Oct 16, 2004 at 12:22:00PM +0200, Thorsten Wilms wrote:
> On Thu, Oct 14, 2004 at 01:42:07PM -0700, Greg KH wrote:
> > 
> > That needs to be there.  If that doesn't happen, something is wrong.
> > Make sure you aren't booting with a command line that disables udev, or
> > enables devfs.  Also make sure you don't have devfs in your kernel at
> > all.
> 
> There are no special boot parameters at all.
> And i tripple checked the kernel is configured without devfs.
>  
> > > But there's a udevd running.
> > 
> > The kernel started that up, not the init scripts.
> > 
> > > And how could there be a working device mount, allowing me 
> > > to mount a partition without udev (since that kernel comes 
> > > without devfs)?
> > 
> > The kernel does this on it's own in the boot process.
> 
> I understand the kernel mounts root by itself.
> But the one working device node is for another partition, 
> what makes no sense to me at all.
> 
> In what script is udev supposed to be started?

/sbin/rc

> The system gets to mount sys and proc, then complains 
> it couldn't remove /dev/.devfsd.

That means that you have a kernel with devfs enabled.  Please fix this,
and udev should work.

> And mount tells me /dev would be mounted as devfs.

Then again, fix your kernel.

> All this with varying kernel builds and udev versions.

I suggest reading over the various gentoo udev web pages, they should be
able to help you.  Also read the gentoo forum threads.

Good luck,

greg k-h


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