Re: [proaudio] emerge rt-sources && ln -s linux -> rt-sources

["Mark Knecht" <markknecht@xxxxxxxxx>]

On 5/26/06, Colin Shapiro <cmshapiro@xxxxxxxxx> wrote:
> Supposedly the "symlink" USE flag is supposed to control this behavior, but
> for quite a while now, I have noticed that even with USE="-symlink", the
> /usr/src/linux symlink is created anyway.  This occurs even with
> gentoo-sources.
>
> Other than the minor inconvenience of having to issue a "ln -sf" command, I
> fail to see how this is a big problem.  How often do you really emerge a new
> kernel?

Quite often. Probably 5-10 times per month...

> Also, keep in mind that every time you emerge additional kernel sources, you
> need to remerge any packages that build kernel modules so that these modules
> are built for the new kernel.  Take nvidia-glx for example; if you have
> gentoo-sources and rt-sources installed, you will have to emerge nvidia-glx
> once for each kernel.  As such, changing the /usr/src/linux symlink around
> isn't necessarily a bad thing.

I agree. However, if I am running 2.6.16-gentoo-r2 and emerge
rt-sources, I am not running rt-sources. rt-sources cannot run until I
configure it, build it, install it, change grub and reboot. In the
meantime I proceed to do work on my machine and later find out
mistakes are being made because the symlink is pointing to the wrong
kernel.

Further, I think that creating this link is not the Gentoo way. This
link is neither created, changed or destroyed when emerging
gentoo-sources or any of the other kernels. I think it should really
not be done here.

Cheers,
Mark


> - Colin
>
>
> On 5/26/06, Mark Knecht <markknecht@xxxxxxxxx> wrote:
> > Hi,
> >    After emerging rt-sources this evening as a test of the new -rt
> > patches I found there was a new link in /usr/src point at
> > linux-2.6.16-rt25.
> >
> > 1) Was this created by emerge rt-sources? IT seems ot be based on
> > dates and times:
> >
> > lrwxrwxrwx  1 root root        17 May 26 17:26 linux -> linux-2.6.16-rt25
> > drwxr-xr-x 19 root root      4096 May 26 17:26 linux-2.6.16-rt25
> >
> > 2) Do others agree with me that if it was created by emerge rt-sources
> > that it should NOT be?
> >
> >    Just because I emerge a new kernel source tree does not mean I want
> > it to become the default kernel source for the system. Since other
> > emerges reference this link to tell it what code to build for
> > different modules, such as realtime-lsm or video adapters, I want to
> > make sure I control this link and not emerge.
> >
> >    Long term this will cause problems if the kernel pointed to doesn't
> > match the default kernel that's booted by grub after a cold boot.
> >
> >    Comments?
> >
> > Thanks,
> > Mark
> >
> >