On Wed, Oct 15, 2014 at 8:14 AM, thegeezer <thegee...@thegeezer.net> wrote: > On 15/10/14 04:14, Rich Freeman wrote: >> >> One thing I do like is the trend towards putting default configs in >> /usr and using /etc more for overrides. > > you should have a look at unionfs or aufs -- what you can do is have an > initram that mounts /etc from lvm-stock-etc and then unionfs with > lvm-custom-etc > this allows you to have a standard lvm layout everywhere and then only > need to rsync the lvm-custom partitions > if you are feeling really fruity could use network locations for the > stock locations and an sd card or small storage for the custom partition
That could potentially work, but it has some problems: 1. Updates will get applied to the unionfs, so it will gather untouched files over time. That is, unless you unmount the unionfs before doing updates (which could be difficult if the system is otherwise operational). 2. If you modify one line in a file in /etc, the entire file with the modification will be present in the unionfs. Using the split /usr - /etc approach usually requires application support as both configuration files need to be sourced, with specific settings in /etc overriding those in /usr, but any unmodified settings being taken from /usr. Many (most?) packages do not support this. -- Rich
