Is it possible to have on the same hard disk a single home partition (e.g. EXT4), shared by multiple operating systems?
What I would like to do is to install Linux, HURD and DragonFlyBSD on the same system, having a single home.
To solve the problem of conflicting configuration files, could this be a solution:
/home/ user1/ user1_linux/ user1_hurd/ user1_dfbsd/
user1 is a pseudo-user directory where all the "normal" files are, and the others are the real OS-specific user directories where configuration and OS-specific files go.
Then each OS should have access rights to
user1/ and its own dedicated user directory only.