Re: [Xen-users] xen 4.3.3 -> 4.4.1 after dom0 upgrade : domU refuses to boot

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-04-21 at 15:10 +0200, Pierre Peyronnel wrote:

>         13MB is pretty meagre for /var/run though, on Debian mine is a
>         700MB
>         ramdisk for example...
> 
> 
> Isn't /var/run is for PIDs and named pipes mostly, so I'm not sure it
> needs to be big either.

According to FHS it is for "Runtime variable data". It's possible /tmp
might be a better fit for our uses.

> As for Alpine, it is a pretty sleek running distro... It is only dom0
> for me and runs on something like 256MB or maybe 512MB of RAM, the
> rest being available to domUs.
> But is it really useful to have the kernel available for boot in a
> ramdisk ? After boot it will be in the domU RAM anyway, no ?

This is just a temporary file to hold the kernel+initrd from the moment
they are extracted from the guest filesystem until the guest is actually
built (i.e. the kernel copied to guest ram) and then they are removed.

Ian.



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