Do Leopard and Tiger like each other?

[Finlay Dobbie]

On 27/10/2007, Ashley Aitken <mrhatken at mac.com> wrote:
> Most of my machines have user data on a separate partition to the OS
> and another partition.  I am wondering whether I can install Leopard
> on the other partition and set-up the accounts to use the user data,
> and then still be able to boot from the Tiger partition if things
> don't work out.
>
> So the question is: how well can Leopard and Tiger live together on
> the same machine, dual booting and sharing user data, at least for a
> while?  Any experiences?

Probably not very well at all. Firstly, the user account database
format has completely changed - NetInfo is gone in Leopard. So you'd
at least have to duplicate that. Then you have the problem that a lot
of configuration files (plists etc) will have changed format. The Mail
database appears to have changed format (there's a conversion wizard
thing which runs first time you launch it after you upgrade), and so
on.

I wouldn't suggest it.

 -- Finlay