[csw-maintainers] Migrating config files from /opt/csw/etc to /etc/opt/csw during package update

[Trygve Laugstøl]

Maciej (Matchek) Blizinski wrote:
> After considering all the options, I wrote an example
> implementation[1] of the one that does symlinks, and used it for the
> unixodbc package. Trygvis had objected to putting it into testing, and
> then disappeared in a black hole. I pulled the package from testing;
> moved it into a subdirectory. Meanwhile, there is more and more
> packages that are being held back by this issue, notably, there are
> cups and tightvnc. Let's get it sorted out and move forward!
> 
> The issue isn't entirely new, one might point out. There are packages
> which already migrate their configuration files[2]. The case currently
> discussed isn't as simple though, because it's a migration from a
> single shared configuration instance into many per-zone configuration
> instances.
> 
> There is a number of options discussed on the wiki page[3]. I'd like
> to ask if people have any other options to offer.
> 
> There another case to consider: the case when the configuration files
> can't be automatically migrated. Should the preinstall script abort
> the installation? (Can it really abort the installation?) Any other
> ideas?
> 
> At the end of the discussion, I'd be happy if we had a canonical
> implementation of the migration; possibly using a common script, put
> into cswclassutils.
> 
> Please respond to the mailing list, and I'll update the wiki page.

As I see it there are actually two discussions going on here simultaneously:

* Handling configuration files for zones and NFS environments

For this point I think we need to find more examples to be able to 
figure out a reasonable policy.

* The actual upgrade process and the physical moving of existing 
configuration files

--
Trygve