On Monday 2011-03-28 16:25, Ludwig Nussel wrote:

>Kay Sievers wrote:
>> On Mon, Mar 28, 2011 at 13:28, Ludwig Nussel <[email protected]> wrote:
>> > Bill Nottingham wrote:
>> >> Andrey Borzenkov ([email protected]) said:
>> >> > On Fri, Mar 25, 2011 at 7:07 AM, Kay Sievers <[email protected]> 
>> >> > wrote:
>> >> > > Instead of the /dev/.run trick we have currently implemented, we 
>> >> > > decided
>> >> > > to move the early-boot runtime dir to /run.
>> >> > >
>> >> >
>> >> > What is the benefit? /var/run is well known and established; what is
>> >> > the reason to move it in another place?
>> >>
>> >> /var/run depends on /var, which is allowed to be a separate filesystem, 
>> >> and
>> >> therefore not available during all portions of the boot process or 
>> >> shutdown.
>> >
>> > mount --bind /var/run /mnt
>> > mount /var
>> > mount -M /mnt /var/run
>> 
>> We would need to make sure that /var/run exists on the rootfs then. We
>> could probably do that on shutdown, but it's not really fun to rely on
>> such things.
>
>If it's not there and / is ro you can put /var on tmpfs temporarily too (or
>even reuse the one for /var/run via bind mount or symlink).

But sounds more work than it currently is.
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