Re: Moving resolv.conf to /var

[Evan Broder <evan ebroder net>]

On Wed, Aug 3, 2011 at 11:22 AM, Klaus Lichtenwalder
<k lichtenwalder computer org> wrote:
> Am 03.08.2011 20:14, schrieb Evan Broder:
>> On Wed, Aug 3, 2011 at 11:12 AM, Klaus Lichtenwalder
>> <k lichtenwalder computer org> wrote:
>>> Am 03.08.2011 20:07, schrieb Michał Górny:
>>>> On Wed, 03 Aug 2011 20:01:15 +0200
>>>> Klaus Lichtenwalder <k lichtenwalder computer org> wrote:
>>> [...]
>>>>> And your and other peoples reasons are more than valid. So, I think
>>>>> the most nonintrusive way would be to have a symbolic link to probably
>>>>> /var/run/resolv.conf, which would also work if the file isn't there...
>>>>> It could belong to a group with members that are allowed to write
>>>>> there. Dhcp, MM, ppp probably...
>>>>
>>>> As I mentioned earlier, symlink is no solution but a workaround
>>>> introducing further breakage possibilities. Most importantly it won't
>>>> allow you to have fallback /etc/resolv.conf. And the symlink will be
>>>> invalid if one uses separate /var and /var hasn't been mounted yet.
>>>
>>> Yeah, I've been posting too early for your argument, and you're right. I
>>> don't think /var not being mounted will be a problem (haven't thought it
>>> through, though), because that's so early in the boot process that name
>>> resolution might not yet be a problem. (Network probably isn't up either).
>>
>> This is exactly what /run was created for, so why not call it
>> /run/resolv.conf instead of /var/run and avoid that problem entirely?
>>
>
> Well, /run is very new, from debian, if I recall correctly... So, yes,
> on one way we want something (very) new, I don't know whether the
> semantics for /run are fixed. Or /run is accepted widely enough?

/run was created by cross-distro agreement. Lennart was actually the
one who did the most public announcement and the first push on the
Fedora side [1], but at this point Debian, Ubuntu, Fedora, and SuSE
all have support, at least in their development releases.

[1] https://lwn.net/Articles/436012/