Re: Only one working partition nodey

Re: Only one working partition nodey

[Kay Sievers]

On Thu, Oct 14, 2004 at 03:43:50PM +0200, Thorsten Wilms wrote:
> 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?

What does "fdisk -l /dev/hda" print?
What does "ls -la /dev/hda*" say?
Try to run "/sbin/udevstart" and look at "ls -la /dev/hda*" again.

Kay


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Re: Only one working partition nodey

[Thorsten Wilms]

On Thu, Oct 14, 2004 at 04:04:20PM +0200, Kay Sievers wrote:

> What does "fdisk -l /dev/hda" print?

It prints nothing at all!
With old kernel the to be expected list.


What does "ls -la /dev/hda*" say?

All hda entries point to ide/host0 ... and so on.
Only hda7 is a device node.


> Try to run "/sbin/udevstart" and look at "ls -la /dev/hda*" again.

No change.


---
Thorsten Wilms


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Re: Only one working partition nodey

[Greg KH]

On Thu, Oct 14, 2004 at 05:57:26PM +0200, Thorsten Wilms wrote:
> On Thu, Oct 14, 2004 at 04:04:20PM +0200, Kay Sievers wrote:
> 
> > What does "fdisk -l /dev/hda" print?
> 
> It prints nothing at all!
> With old kernel the to be expected list.
> 
> 
> What does "ls -la /dev/hda*" say?
> 
> All hda entries point to ide/host0 ... and so on.
> Only hda7 is a device node.
> 
> 
> > Try to run "/sbin/udevstart" and look at "ls -la /dev/hda*" again.
> 
> No change.

You do have sysfs mounted at /sys, right?  Why not use your distro's
udev package instead of trying to install it yourself into the boot
process?

thanks,

greg k-h


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Re: Only one working partition nodey

[Thorsten Wilms]

On Thu, Oct 14, 2004 at 12:15:23PM -0700, Greg KH wrote:
> 
> You do have sysfs mounted at /sys, right?

Right.

> Why not use your distro's
> udev package instead of trying to install it yourself into the boot
> process?

I am using my distros udev package!
That is, I emerged udev on my gentoo.
I followed the available documentation, checked the gentoo forum and 
asked on irc ... everybody out  of ideas.

Far as I know there should be a line about udev populating /dev 
on bootup. couldn't see/find that. But there's a udevd running.
And how could there be a working device mount, allowing me 
to mount a partition without udev (since that kernel comes 
without devfs)?


---
Thorsten Wilms


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Re: Only one working partition nodey

[Greg KH]

On Thu, Oct 14, 2004 at 09:26:56PM +0200, Thorsten Wilms wrote:
> On Thu, Oct 14, 2004 at 12:15:23PM -0700, Greg KH wrote:
> > 
> > You do have sysfs mounted at /sys, right?
> 
> Right.
> 
> > Why not use your distro's
> > udev package instead of trying to install it yourself into the boot
> > process?
> 
> I am using my distros udev package!
> That is, I emerged udev on my gentoo.
> I followed the available documentation, checked the gentoo forum and 
> asked on irc ... everybody out  of ideas.
> 
> Far as I know there should be a line about udev populating /dev 
> on bootup. couldn't see/find that.

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.

> 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.

thanks,

greg k-h


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