Hotplug issues?

decoleur · Posted: Thu Nov 11, 2004 3:17 am Post subject: Hotplug issues?

I am running gentoo-dev-sources and tried to emerge sys-apps/hotplug-20040923 and then ran dispatch-conf and accepted all updated files... only to loose networking (among others).

lsmod reveals:

dsd · Posted: Thu Nov 11, 2004 6:42 am Post subject:

hotplug no longer loads modules on bootup. if you want that, use coldplug.
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alchemyx · Posted: Thu Nov 11, 2004 11:50 am Post subject:

Could you then, please, explain what hotplug init script does in that case? I am confused, because for long time it was hotplug

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Michał Margula, alchemyx@uznam.net.pl, http://alchemyx.uznam.net.pl/
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anz · Apprentice Joined: 05 Feb 2003 Posts: 279 Location: Vienna

Hello,

dsd · Posted: Thu Nov 11, 2004 4:10 pm Post subject:

hotplug init script does nothing. it is not needed (and never was) for hotplugging.
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alchemyx · Posted: Thu Nov 11, 2004 4:21 pm Post subject:

Funny thing is that after those changes (coldplug appearead), my network card stopped working properly - I had to add an alias 'alias eth0 via-rhine', so it works again. Sad.
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Michał Margula, alchemyx@uznam.net.pl, http://alchemyx.uznam.net.pl/
"W życiu piękne są tylko chwile" [Ryszard Riedel]

Cintra · Advocate Joined: 03 Apr 2004 Posts: 2111 Location: Norway

frilled · Posted: Thu Nov 11, 2004 7:44 pm Post subject:

Man, I am seriously pi**ed. :evil:

I had the same thing, did an "update world" and had almost no peripheral support after booting and no idea why.

We *desperately* need some good* logging facility for portage. The way it is is simply bound to break one box after another. The only thing that keeps it from smashing directly into the wall is this incredibly good forum.

PLEASE, please, please, put some serious logging of important ebuild messages into portage!
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Cintra · Advocate Joined: 03 Apr 2004 Posts: 2111 Location: Norway

Right..

Happily I can restore the pre-emerge status within 10 minutes, but I hate to throw away the compile time if there's a simple fix..

mvh
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soulwarrior · Guru Joined: 21 Oct 2002 Posts: 331

dsd · Last edited by dsd on Fri Nov 12, 2004 12:04 am; edited 1 time in total

let me do a quick clarification for anyone who's a little lost:

Previously, hotplug scanned your hardware and loaded the relevant modules on bootup. Some people relied on this to autoload the relevant drivers such as network.
Autoloading modules like this is *not* hotplugging - 'true' hotplugging is where you plug a device in after the system has booted up. When this happens, hotplug aims to ensure that it is ready for use.
As such, the "autoloading modules on bootup" part of hotplug has been removed. the /etc/init.d/hotplug script now does pretty much nothing (it is not needed for 'true' hotplugging)

The autoloading-modules-at-bootup code has been split off into the more appropriately named coldplug package. To restore the old hotplug-autoloading-modules-at-boot functionality, all you need to do is:

Code:

emerge coldplug
rc-update add coldplug boot

Alternatively, you can simply list the modules you wish to load in /etc/modules.autoload.d/kernel-2.6
(or, /etc/modules.autoload.d/kernel-2.4 if you run a 2.4 kernel)

I hope that clears things up a bit
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dsd · Posted: Thu Nov 11, 2004 8:19 pm Post subject:

as to some way of getting this message over better, well, does anyone have any suggestions?

we describe the new behaviour in the ebuild, in the changelog, in the hotplug init script (which you must have seen with etc-update) and by spamming messages at the end of the emerge. i'm going to submit an article for the GWN but thats not going to get out to everybody.

yes, a good portage message log enabled by default would be perfect, but we dont have that just yet

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frilled · Posted: Thu Nov 11, 2004 8:28 pm Post subject:

Cintra · Advocate Joined: 03 Apr 2004 Posts: 2111 Location: Norway

Cintra · Advocate Joined: 03 Apr 2004 Posts: 2111 Location: Norway

alchemyx · Posted: Thu Nov 11, 2004 10:32 pm Post subject:

Everything would be fine, but one of developers is terribly wrong and doesn't want to force coldplug before network initialisation...
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Michał Margula, alchemyx@uznam.net.pl, http://alchemyx.uznam.net.pl/
"W życiu piękne są tylko chwile" [Ryszard Riedel]

altstadt · n00b Joined: 04 Nov 2003 Posts: 16

dsd · Posted: Thu Nov 11, 2004 11:32 pm Post subject: Re: READ THIS FOR CLARIFICATION!

dark_glaive · Posted: Thu Nov 11, 2004 11:43 pm Post subject:

instead of doing

alchemyx · Posted: Thu Nov 11, 2004 11:48 pm Post subject:

You are probably right but shouldn't be issue solved by adding "before net" to those damn coldplug scripts?
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Michał Margula, alchemyx@uznam.net.pl, http://alchemyx.uznam.net.pl/
"W życiu piękne są tylko chwile" [Ryszard Riedel]

altstadt · n00b Joined: 04 Nov 2003 Posts: 16

mc_barron · Posted: Fri Nov 12, 2004 3:11 am Post subject:

Here's the problem:
- I emerge the "new" hotplug that now does nothing
- My network is completely borked (don't know why - I thought all the drivers were compiled into the kernel, so it shouldn't matter right? Strange...)
- I now have no network to emerge coldplug, or to copy the coldplug filesfrom another computer.

I know, I know - I can revert back to the old hotplug. But I don't want to do that. A simple update to the world should not break my system this badly! Besides, I'll learn nothing if I just go back to the old way.

I want to know the answer to altstadt's qustion too:
To migrate over to use the modules.autoload.d files as originally intended, is there some way I can find out what modules the old hotplug is loading at boot?

GenKreton · Posted: Fri Nov 12, 2004 4:54 am Post subject:

mc_barron · Posted: Fri Nov 12, 2004 5:05 am Post subject:

Yes, you are correct in that it lists ALL of the modules I have compiled for my currently running kernel. The question was what modules were actually loaded by hotplug?

GenKreton · Posted: Fri Nov 12, 2004 6:30 am Post subject: