[colug-432] kmod vs akmod nvidia

[Patrick Shuff]

kmod-nvidia are the pre-compiled version of the nvidia video kernel modules
and are tied to (compiled against) specific kernel versions and then
someone uploads them to the yum repos.  The "akmod" versions, as you
pointed out, will check at boot-time to see if the proper nvidia kernel
modules are available, and if they aren't then it will compile the
necessary bits against your current kernel-headers.  This is advantageous
if you like to install the newest kernels available in the fedora repos and
someone hasn't yet put up the kmod-nvidia package for the new kernel or if
you are into building/using custom kernels to which there will never be a
pre-compiled version of kmod-nvidia.

Some more reading on the topic:
http://forums.fedoraforum.org/showthread.php?t=227214


On Sun, Jan 26, 2014 at 9:02 AM, Vince Herried <Vince at planetvince.com>wrote:

> Any one know how this works?
>
> I removed all the kmod-nvida and installed akmod-nvida.
> leaving out a lot of dialog, I find that akmod-nvidia, apparently at boot
> time, at least before i get logged in with X runnning, installs kmod-nvidia
> ( I re-removed kmod-nvidia and see  a grumble that RPMDB was updated
> outside yum.)   Then after re-boot kmod-nvidia is re-installed!
>
> I need to do some digging,  where do one send bug reports on such?
> The akmod-nvidia didn't install all the reqs for it to  re-build.  After
> several attempts to get X going, I find /var/log/messages has grumble of
> missing devel, install it and all is well.     akmod-nvidia installed a
> bunch of reqs but missed  kernel-PAE-devel.    I didn't even know there was
> a different devel for the PAE.
>
> If any one going to do install, my recommendation don't yum erase
> kmod-nvidia,  cause it removes a BIG library that akmod is gonna re-install
> and seems that akmod-nvidia needs kmod-nvidia.   Almost acts like
> akmod-nvidia 'desires' kmod-nvidia but doesn't require?  I suppose if i
> really needed to know, i should try boot with no network access.
>
> I must be getting a tiny bit smarter,  this cycle of broken X11 only
> lasted couple of hours or so,  much less than previous times.
>
> ---
> Vince
>
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