Comment 201 for bug 19171

Message-Id: <1124987404.10155.10.camel@shuttle>
Date: Thu, 25 Aug 2005 18:30:04 +0200
From: Mourad De Clerck <email address hidden>
To: Marco d'Itri <email address hidden>
Cc: <email address hidden>
Subject: Re: Bug#317333: acknowledged by developer (Bug#317333: fixed in
 udev 0.063-1)

On Thu, 2005-08-25 at 16:49 +0200, Marco d'Itri wrote:
> On Aug 14, Mourad De Clerck <email address hidden> wrote:
>
> > Unfortunately, using linux-image-2.6.12-1-k7 2.6.12-2 and udev 0.066-1 I
> > can still reproduce this bug. After boot certain devices don't show up,
> One of the udev maintainers suggested to try adding mousedev to
> /etc/modules.
>

Actually, they are on to something because I had just found out
something significant.

I had 2 things in my /etc/modules:

mousedev
ide-cd

The reason why I added mousedev is that (quite) a while back it wouldn't
get automatically loaded. ide-cd was a debian default if I am not
mistaken.

I commented both out, and on reboot /dev/input/mice was there!

Just to make sure there were no other devices missing, I started
udevstart again and compared the before and afters:

--- dev_before_udevstart.txt 2005-08-25 16:20:35.000000000 +0200
+++ dev_after_udevstart.txt 2005-08-25 16:20:54.000000000 +0200
@@ -1,2 +1,5 @@
 /dev/
+/dev/dvd1
+/dev/cdrw1
+/dev/cdrom1
 /dev/vcsa1

Now this is weird (and new) - there's no clear reason why extra
(unecessary) dev nodes are made afterwards, and why he didn't make them
in the first place (on boot). The nodes point to the same thing:

lrwxrwxrwx 1 root root 3 Aug 25 16:19 /dev/dvd -> hdc
lrwxrwxrwx 1 root root 3 Aug 25 16:20 /dev/dvd1 -> hdc

(similarly for cdrw/cdrw1, and cdrom/cdrom1 - there's no dvd0)

I guess it's because I commented out ide-cd too ...?

It's still very weird that modules listed in /etc/modules have this
effect on udev. In the end the same modules are loaded, just at
different times (and maybe twice?).

-- Mourad