Minimal static dev entries?

Minimal static dev entries?

[Phil Dibowitz]

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As I moved my data from one disk to another (well actually from a disk
to an md device) I used cp -ax which stays ona given filesystem, and
thus I never get static /dev entries on my new root device.

The only things that seem to be needed by the static boot prior to udev
being started (i.e the only things to cause error) were /dev/console and
/dev/null. So I made these two and the system now boots fine and udev
gets started and in /dev/.static/dev I have console, null, and a named
pipe called initctl.

So my question is... is there anything else that _should_ be in the
static dev filesystem that's needed until udev get's started? udev is
started extraordinarily early in the boot process, so I don't suspect
so, but I thought I'd ask those who know best.

Thanks,
-- 
Phil Dibowitz                             phil@ipom.com
Freeware and Technical Pages              Insanity Palace of Metallica
http://www.phildev.net/                   http://www.ipom.com/

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
 - Benjamin Franklin, 1759


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Re: Minimal static dev entries?

[Kevin P. Fleming]

Phil Dibowitz wrote:

> So my question is... is there anything else that _should_ be in the
> static dev filesystem that's needed until udev get's started? udev is
> started extraordinarily early in the boot process, so I don't suspect
> so, but I thought I'd ask those who know best.

No, in my experience the only entries needed are /dev/console and /dev/null.


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Re: Minimal static dev entries?

[Greg KH]

On Sat, May 14, 2005 at 08:25:22PM -0700, Phil Dibowitz wrote:
> As I moved my data from one disk to another (well actually from a disk
> to an md device) I used cp -ax which stays ona given filesystem, and
> thus I never get static /dev entries on my new root device.
> 
> The only things that seem to be needed by the static boot prior to udev
> being started (i.e the only things to cause error) were /dev/console and
> /dev/null. So I made these two and the system now boots fine and udev
> gets started and in /dev/.static/dev I have console, null, and a named
> pipe called initctl.
> 
> So my question is... is there anything else that _should_ be in the
> static dev filesystem that's needed until udev get's started? udev is
> started extraordinarily early in the boot process, so I don't suspect
> so, but I thought I'd ask those who know best.

It all depends on your distro and its startup logic.  Some don't need
any static nodes :)

thanks,

greg k-h


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