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<H1>[Mageia-dev] /run vs /var/run in configuration files</H1>
<B>Colin Guthrie</B>
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TITLE="[Mageia-dev] /run vs /var/run in configuration files">mageia at colin.guthr.ie
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<I>Fri Sep 14 16:18:32 CEST 2012</I>
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<PRE>'Twas brillig, and Guillaume Rousse at 14/09/12 14:24 did gyre and gimble:
><i> Le 11/09/2012 13:44, Colin Guthrie a écrit :
</I>>><i> 'Twas brillig, and Guillaume Rousse at 11/09/12 11:47 did gyre and
</I>>><i> gimble:
</I>>>><i> Le 11/09/2012 12:23, Sander Lepik a écrit :
</I>>>>><i> 11.09.2012 13:15, Guillaume Rousse kirjutas:
</I>>>>>><i> [...]
</I>>>>>><i>
</I>>>>>><i> The /run - /var/run merge (/usrmove) is supposed to make the change
</I>>>>>><i> transparent for applications. Manually converting applications to
</I>>>>>><i> explicitely refers to the new location doesn't change its usefulness.
</I>>>>>><i>
</I>>>>><i> Well, if your system can't mount /var for some reason then keeping
</I>>>>><i> things on /run might make recovery easier.
</I>>><i>
</I>>>><i> Then we probably should not refer to systemd directory as
</I>>>><i> /usr/lib/systemd, but as /lib/systemd for exactly the same reason.
</I>>><i>
</I>>><i> I don't really see the comparison here.
</I>><i> The point was: if the canonical path for /usr/lib|/lib directory (which
</I>><i> is actually the same) if the longuest one, why should the canonical path
</I>><i> for the /var/run|/run directory be the shortest one ?
</I>
It's nothing to do with length, it's to do with which one is not a symlink!
Perhaps I'm misunderstanding, but /run serves a purpose and kinda needs
to be on the root partition such that the initrd can mount and use it.
We cannot really put that path into /var/run and then make /run a
symlink to it because the initrd might not have /var mounted yet.
Am I misinterpreting the question here?
>><i> Personally I'm more in favour of using /run directly and adding lint
</I>>><i> rules that cause a build failure if files are packaged in either
</I>>><i> /var/run or /run.
</I>><i> Shipping /var/run or /run files/directory is a different issues, and is
</I>><i> rather related to tmpfs conversion.
</I>
Agreed, but I figured it was related enough to mention :)
><i> Anyway, I just found out than /usr/lib and /run are the actual
</I>><i> directory, with /lib and /var/run the symlinks. Which makes an argument
</I>><i> of favor of considering the first one as canonical.
</I>
Ahh that might explain things :) Yeah /run is the actual folder,
/var/run is just a compat symlink. The idea being to eventually remove
any reference to /bin or /var/run etc.
Col
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Colin Guthrie
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