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Re: [Xen-devel] [OSSTEST PATCH 5/6] ts-xen-build-prep: mkfs a new /home/osstest, don't resize2fs

Ian Campbell writes ("Re: [OSSTEST PATCH 5/6] ts-xen-build-prep: mkfs a new 
/home/osstest, don't resize2fs"):
> On Wed, 2015-05-13 at 12:15 +0100, Ian Jackson wrote:
> > +   echo '$mapper $dir $fstype defaults 0 0' >>/etc/fstab
> This doesn't update /etc/fstab so in standalone mode (when a host may
> share build and test duties) the reboots will cause the
> old /home/osstest to reappear and then I'm not sure if this all does
> what we want or not with the existing lv.

That line there is the update to /etc/fstab.

The result is that if the host reboots the new fs should be mounted,
and then when this runs again this

> > +   if mount | sed -e 's/^[^ ].* on //; s/ .*//' | grep -F '$dir'; then
> > +       exit 0
> > +   fi

is supposed to arrange that the whole thing is a no-op.

Also note that the script makes the mount point with mode 2700 so that
normal build scripts will crash if the fs is not mounted for some

> +     mkdir -m 2700 $dir


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