only shift unprivileged rootfses when creating
only shift unprivileged rootfses when creating

Closes #569

Signed-off-by: Tycho Andersen <10c18fcb898ee6b17d6575d444b125d10b3f4d6a@canonical.com>

basvanbeek/lxd,jumpstarter-io/lxd,jsavikko/lxd,chrisglass/lxd,dustinkirkland/lxd,basvanbeek/lxd,ollie314/lxd,jumpstarter-io/lxd,Malizor/lxd,akshaykarle/lxd,mjeanson/lxd,mikemccracken/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,lxc/lxd,basvanbeek/lxd,achanda/lxd,hallyn/lxd,akshaykarle/lxd,pcdummy/lxd,stgraber/lxd,sl1pm4t/lxd,techtonik/lxd,georghopp/lxd,jensg-st/lxd,stgraber/lxd,chrisglass/lxd,lxc/lxd,georghopp/lxd,dvbportal/osx-lxd,ericsnowcurrently/lxd,ollie314/lxd,dustinkirkland/lxd,ericsnowcurrently/lxd,jumpstarter-io/lxd,stgraber/lxd,jensg-st/lxd,sl1pm4t/lxd,Malizor/lxd,jsavikko/lxd,hallyn/lxd,lxc/lxd,sl1pm4t/lxd,rrva/lxd,Skarlso/lxd,hallyn/lxd,chrisglass/lxd,jensg-st/lxd,beni55/lxd,dvbportal/osx-lxd,rrva/lxd,mikemccracken/lxd,benaryorg/lxd,Skarlso/lxd,Skarlso/lxd,yura-pakhuchiy/lxd,smoser/lxd,erikmack/lxd,erikmack/lxd,mikemccracken/lxd,mjeanson/lxd,Malizor/lxd,techtonik/lxd,erikmack/lxd,hallyn/lxd,pcdummy/lxd,stgraber/lxd,rcj4747/lxd,atxwebs/lxd,rrva/lxd,benaryorg/lxd,lxc/lxd,achanda/lxd,yura-pakhuchiy/lxd,atxwebs/lxd,benaryorg/lxd,beni55/lxd,ollie314/lxd,lxc/lxd,jsavikko/lxd,achanda/lxd,mjeanson/lxd,atxwebs/lxd,georghopp/lxd,atxwebs/lxd,techtonik/lxd,ericsnowcurrently/lxd,dvbportal/osx-lxd,stgraber/lxd,pcdummy/lxd,smoser/lxd,stgraber/lxd,rcj4747/lxd,beni55/lxd,hallyn/lxd,smoser/lxd,akshaykarle/lxd,dustinkirkland/lxd,Skarlso/lxd,rcj4747/lxd,hallyn/lxd,yura-pakhuchiy/lxd