Theres's lots on the internet on this subject. Apparantly not the easiest thing, but doable. I googled this phrase, "sharing /home on two distros" found much that is helpful: from
On Thu, 31 Mar 2005 17:28:47 +0930
David Lloyd <david at bullmedia.com.au> wrote:
> >I thought I'd try to be clever and share the swap partition between
> >both linux distros, which I believe is a valid thing to do. Then I
> >thought, why not try and share the /boot partition too?
> You could most likely share /boot.
I'd wonder how useful it would be to do so though ... I'd expect /boot
would need to be be no more than 128 to 256 MB in size (actually I
usually make / 256MB, including /boot, so 256MB is on the large size),
so I don't see saving disk space to be a motive to share /boot between
two distros. Are there any other motives ?
Also, be aware that there might be common files between them, and you
may have a situation where a security update to one distro may modify a
shared file in a way that it may disrupt the other distro.
I personally wouldn't share /boot, just to be on the safe side. I'd
probably limit the sharing to swap and /home, and maybe pure source code
directories, eg. where the kernel source code is (for example, I store
the kernel source under /usr/src, as well as any other system things
that I might want to add eg X.org, so that could be sharable).
The Internet's nature is peer to peer.
I wonder How can I share one partition of my hard disk (let's say
> /dev/hda6 ) between two distros (Mandrake 9.0 and RH 7.3 ) so that
> they both see it as their /home
> Is it possible?
Yes, it is.
One caveat, though. Different versions of software might store
different config files in user's $HOME directory. If you want to use
the same user name with both distributions on a shared /home
partition, that can result in unwanted side-effects, e.g. messed up
fonts. Try it. I would recommend you work with separate users.
also check out this:
Happy computing Kurt