Re: udev problems

[clemens@dwf.com]

> On Mon, Apr 18, 2005 at 12:13:38PM -0600, clemens@dwf.com wrote:
> > is.
> > 
> > If it is legal, then I have a complaint...
> > 
> > This has happened to me twice now (three times if you count the twice
> > yesterday while I was trying to dig my way out).
> > 
> > It would seem, that on a reboot (on the way down, on the way up, Im not
> > sure) that udev proceeds to remove all files that were active at the
> > time the system went down.  I will assume that it created all of these
> > files, so it thinks that it can remove them.
> 
> No, odds are /dev is mounted on a ram or tmpfs filesystem, which means
> the whole thing was thrown away when the machine was rebooted.  udev did
> not remove anything on it's own.

No, /dev is just part of the root file system. /dev/shm is on tempf, but
thats irrevelant to the current problem.  I had assumed that the only reason
for udev to retain a database was so that it COULD do this.

As I noted, /dev/hde0-7 (which I mount) are gone, /dev/hde8-9 (which I dont)
are still there.  Very suspicious to me...


> 
> > Hey what ever happened to the MKNOD (?) script that used to be in
> > UNIX systems?  I dont see it in Fedora2.  That would have helped in
> > the repair.
> 
> Try asking the Fedora people, that's up to them, and how they package
> udev.
> 
Yes, I know, I was just asking the question.

> > I had this same problem a couple of months ago, and just gave up
> > and reinstalled the OS.  I hate to do that as it may only take 30-45m
> > to do the reinstall, but it takes another week to get everything
> > configured back the way it was...
> 
> Sounds like you need to learn about backing stuff up :)

Somehow, for the sorts of things that have happened, I wouldnt trust
a backup to fix them.

> 
> > Needless to say, Im not going to use
> > 
> >         udev_root="/dev/"
> >         udev_db="/dev/.udev.tdb
> > 
> > again, anthough it sure makes life a lot simpler.
> > 
> > And, Im going to have to go and remove it from some machines at the
> > lab, before disaster strikes there too.
> 
> Might I suggest a newer distro than Fedora2?  Like one that actually
> implementes udev properly?
> 
OK, sorry, a few lines got truncated off my original message when I
posted it.  The original started with:
OK, Im having problems, and Im sure its UDEV that is doing the deed.

[Fedora 2 and the latest udev ]

First, is it legal to say

        udev_root="/dev/"
        udev_db="/dev/.udev.tdb

If not, there should be a BIG sign on the /udev.conf page saying not to
do this.

If it is legal, ...

So, back to the original question.  IS THIS LEGAL?

And, as I said there, Fedora2 + the most recently released udev.

-- 
                                        Reg.Clemens
                                        reg@dwf.com




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