What are *.xz compressed kernel modules for (Fedora 21)

[Stephen Morris]

On 02/03/2015 06:34 AM, Kevin Wilson wrote:
> Hi,
>
> I have Fedora 21 (x86_64).
> Under /usr/lib/modules/3.17.4-302.fc21.x86_64/kernel, all the kernel
> module are in compressed form.
> (xz files).
> Under
>   /usr/lib/modules/3.17.4-302.fc21.x86_64/kernel, the kernel modules
> are in the *.ko form
>
> What are the *.xz compressed kernel modules for ? In fedora 20 we had
> only *.ko files under /lib/modules.
>
> It seems to me that after booting, when running modprobe, only the
> *.ko modules are used.
>
> Just wonder what would happen If I would (accidentally or by purpose)
> delete the /lib/modules folder in fedora 21 (I don't intend to do it
> before getting an answer here...)
I would not delete /lib/modules otherwise the kernel would fail I suspect.
/lib is not a physical directory as such, /lib is a point to /usr/lib, 
so when you do a ls /lib/modules what you are listing is actually 
/usr/lib/modules.
>
> Regards,
> Kevin

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