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dE_logics
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Joined: 02 Jan 2009
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 Posted: Wed Mar 30, 2011 2:06 pm Post subject: What to rebuild after a kernel upgrade? |
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Apparently there's no info on this and I started to realize it when X started to crash for some unknown reason (X, kernel logs reveal nothing at all....).
So what should be rebuild after a kernel upgrade?
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XQYZ
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Joined: 19 Jul 2009
Posts: 231
Location: Europe
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| Posted: Wed Mar 30, 2011 2:14 pm Post subject: |
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| Stuff that links against kernel sources? Nvidia's binary blob driver and extensions/modules for virtual servers comes to mind. Also everything that brings a kernel module along I guess. |
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GES
Tux's lil' helper
Joined: 12 Jun 2005
Posts: 108
Location: Budapest, Hungary
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| Posted: Wed Mar 30, 2011 3:09 pm Post subject: |
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| Code: | # eix module-rebuild
[I] sys-kernel/module-rebuild
Available versions: 0.5 ~0.6
Installed versions: 0.5(16.25.50 2011-01-27)
Homepage: http://www.gentoo.org/
Description: A utility to rebuild any kernel modules which you have installed
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d2_racing
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Joined: 25 Apr 2005
Posts: 13047
Location: Ste-Foy,Canada
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| Posted: Wed Mar 30, 2011 3:23 pm Post subject: |
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| Yep, I use module-rebuild since 2008, it's really something that I use when I change my kernel. |
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aCOSwt
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Joined: 19 Oct 2007
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| Posted: Wed Mar 30, 2011 3:24 pm Post subject: |
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| GES wrote: | | Code: | | # eix module-rebuild |
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Of course, module-rebuild is the final solution... provided... you know with what you should populate it... 
Because, per se, module-rebuild will not discover this automagically.
As SQYZ correctly points out, the kind of thing you are likely to have to rebuild is drivers.
But... depending on what you have installed, it might not be enough.
mikegpitt and I have had a fruitful discussion on how to find exhaustively the packages : (Posts 4 and 6) https://forums.gentoo.org/viewtopic-t-855503-highlight-kernel.html |
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depontius
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Joined: 05 May 2004
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| Posted: Wed Mar 30, 2011 7:53 pm Post subject: |
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| aCOSwt wrote: | | GES wrote: | | Code: | | # eix module-rebuild |
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Of course, module-rebuild is the final solution... provided... you know with what you should populate it...
Because, per se, module-rebuild will not discover this automagically.
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Has "module-rebuild populate" failed for you?
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aCOSwt
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Joined: 19 Oct 2007
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| Posted: Wed Mar 30, 2011 9:57 pm Post subject: |
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| depontius wrote: | | Has "module-rebuild populate" failed for you? |
It has.
Well... in the past I mean... So... things might have changed since.
module-rebuild populate was recurrently unable to find drivers with more or less exotic naming schemes, those of the kind only a driver programmer can imagine...  mixing hyphens and digits.
It was also unable to correctly deal with vmware kernel modules.
My opinion being that this kind of tool is either exhaustive or useless, I no longer use it. |
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davidm
Guru
Joined: 26 Apr 2009
Posts: 557
Location: US
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| Posted: Wed Mar 30, 2011 10:04 pm Post subject: |
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| d2_racing wrote: | | Yep, I use module-rebuild since 2008, it's really something that I use when I change my kernel. |
Same here. They cover it decently in the kernel upgrade guide as well.
http://www.gentoo.org/doc/en/kernel-upgrade.xml |
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depontius
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| Posted: Thu Mar 31, 2011 1:50 am Post subject: |
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| aCOSwt wrote: |
module-rebuild populate was recurrently unable to find drivers with more or less exotic naming schemes, those of the kind only a driver programmer can imagine... mixing hyphens and digits.
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Since my usage generally extends to nvidia-drivers, openafs-kernel, and lirc, I've never seen a problem. But then, none of those are exotic.
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dE_logics
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| Posted: Thu Mar 31, 2011 3:51 am Post subject: |
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I was wondering I need to rebuild things like X libs, *glib* etc...
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slackline
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Joined: 01 Apr 2005
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| Posted: Thu Mar 31, 2011 8:25 am Post subject: |
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If you're using the latest development arm of portage then you can use...
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emerge @module-rebuild && emerge @x11-module-rebuild
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...without the need for sys-kernel/module-rebuild.
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truekaiser
l33t
Joined: 05 Mar 2004
Posts: 810
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| Posted: Sun May 08, 2011 7:48 pm Post subject: |
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| depontius wrote: | | aCOSwt wrote: |
module-rebuild populate was recurrently unable to find drivers with more or less exotic naming schemes, those of the kind only a driver programmer can imagine... mixing hyphens and digits.
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Since my usage generally extends to nvidia-drivers, openafs-kernel, and lirc, I've never seen a problem. But then, none of those are exotic. |
Lirc in the portage tree is out of date and no longer needed now that it is being included in the kernel all be it under staging drivers. |
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depontius
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| Posted: Sun May 08, 2011 7:55 pm Post subject: |
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| truekaiser wrote: | | depontius wrote: | | aCOSwt wrote: |
module-rebuild populate was recurrently unable to find drivers with more or less exotic naming schemes, those of the kind only a driver programmer can imagine... mixing hyphens and digits.
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Since my usage generally extends to nvidia-drivers, openafs-kernel, and lirc, I've never seen a problem. But then, none of those are exotic. |
Lirc in the portage tree is out of date and no longer needed now that it is being included in the kernel all be it under staging drivers. |
You still need the userspace side, and some (like me) haven't moved to devinput yet. I saw a while back on the list one of the developers saying that some 2.6.37 code might be stale, and the 2.6.38 drivers would likely work better. It's a little new, yet.
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cwr
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Joined: 17 Dec 2005
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| Posted: Mon May 09, 2011 8:38 am Post subject: |
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| dE_logics wrote: | | I was wondering I need to rebuild things like X libs, *glib* etc... |
No. That is, I've never had to, and I don't see how they could be affected. The problem
is in modules which the kernel doesn't automatically rebuild, and some kernel profiling and
debugging stuff. I've never used binary drivers, but I'd expect that they'd bite you too.
Will |
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Sysa
Apprentice
Joined: 16 Mar 2005
Posts: 161
Location: Europe
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| Posted: Mon May 09, 2011 9:42 am Post subject: |
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Usually I do | Code: | | emerge -1 $(qlist -IC udev driver) |
only but recently (after migration to 2.6.37 and KMS) I had to make | Code: | | emerge -1 $(qlist -IC xorg x11 drm) |
also to solve a "black screen" problem.
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