Re: /etc/dev.d/net/hotplug.dev

["Eugenia Loli-Queru" <eloli@eugenia.co.uk>]

>What distro are you using?

I am using Arch Linux btw.

Rgds,
Eugenia


----- Original Message ----- 
From: "Mathieu Segaud" <>
To: "Eugenia Loli-Queru" <>
Cc: "Greg KH" < "Hotplug Devel" <linux-hotplug-devel@lists.sourceforge.net>
Sent: Monday, November 01, 2004 4:01 PM
Subject: Re: /etc/dev.d/net/hotplug.dev


"Eugenia Loli-Queru" <> disait dernièrement que :

>> Where did anyone say that hotplug renamed the devices back?
>
> I say it. Do you have another explanation? My udev.rules is correct AFAIK,
> but then I end up with the different ethernet names anyway. I have 
> contacted
> my distro maker (who actually has the same problem with his Thinkpad), and
> he said that it's a hotplug problem. That's why I emailed you guys.

I am using Gentoo Linux, and initramfs to boot my dm-crypt'd /.
To prevent some bad interaction between hotplug and initramfs stuff (oopsen
when call_usermodhelper is issued), I explicitly disables hotplug during
initramfs phase with "echo > /proc/sys/kernel/hotplug"

But /sbin/rc (Gentoo main initscript) does not set it back to /sbin/hotplug
(and I forgot to do so in my initramfs_data.cpio.gz :)), and sets it to
/sbin/udev (normal behaviour). With this setup, ethernet cards are not named
as stated in udev.rules. The workaround for me is to add an
"echo /sbin/hotplug > /proc/sys/kernel/hotplug" before udev/hotplug
configuration.

So my suggestion is: verify that /proc/sys/kernel/hotplug is set to hotplug
and not udev binary, by your distro initscripts.

By the way, Greg, shouldn't /sbin/rc in Gentoo test if /sbin/hotplug exists
and set /proc/sys/kernel/hotplug to /sbin/hotplug if so, instead of 
verifying
that /proc/sys/kernel/hotplug is executable and then if /sbin/hotplug exists 
?

I thought about filing a bug at bugs.gentoo.org, but this looks to me asif 
it
were a chicken/egg problem, and you know more about hotplug and udev
interaction than me :)




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