Testing 2.4

[Nikolaus Rath]

Henrique de Moraes Holschuh <hmh-8fiUuRrzOP0dnm+yROfE0A at public.gmane.org> writes:
> On Tue, 04 Jan 2011, Nikolaus Rath wrote:
>> I would like to test the cyrus 2.4 packages, but I need some guidance on
>> how to do it.
>
> The others have already told you about building from git.
>
> You have also to keep good backups of the old data, 2.4 is *very* new,
> and upstream is still finding and fixing issues related to the upgrade
> path.  It has some serious potential for headaches, we'd never upload it
> to unstable right now even if the packaging was already good (and we
> were not in a freeze).   It still needs a month or two of upstream
> bugfixing.
>
> Note: this doesn't apply for new installs, or migrations over IMAP
> (instead of in-place).

I am in the lucky situation of having just a couple of GB of IMAP data,
so my plan is to copy the entire system into a Xen guest and try the
update there first. If it works, I'll purge the cyrus packages on the
real system, install the new versions and then rsync the spool from the
Xen guest. (A few hours of email downtime are not going to be a problem
either if I time them reasonably good).


Is there a way to verify that the in-place upgrade worked? Or is it
possible that the upgrade seems to work smoothly, but after a week I'm
suddenly in trouble? In that case I would probably go with an IMAP
migration instead...


Thanks,

   -Nikolaus

-- 
 »Time flies like an arrow, fruit flies like a Banana.«

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