Comment 19 for bug 432360

>ureadahead supports, as far as it can, separated filesystems - but it
>cannot support a separate /var
Well that's unfortunate because there are very good reasons for having a separate /var and /home, namely that you might want to mount your root filesystem ro, because it should change only occasionally (i.e. updates), whereas /var can be mounted rw. It's a security feature.