Bill Moran wrote:
In response to Gunther Mayer <[EMAIL PROTECTED]>:
I've been grappling with this and read all sorts of email threads and
blog posts but I still have no good solution to the following problem: I
want to upgrade a postgresql installation on FreeBSD 6.3 from 8.2 to 8.3
as we'd like to take advantage of its new features and performance
enhancements. Yet none of the ports system offers no clean _and_ quick
way of performing such an upgrade as the Makefiles of the respective
ports choke as soon as they detect an existing older -server or -client.
Yet all I want to do is in a script which fires automatically at 5am via
cron (of course I'll get up to check just in case but I've done this
many times before):
1. Do all backup tasks (build packages for all installed postgresql
8.2 stuff for possible rollback, full database dump, configs etc.)
and take down all processes that write to the db
2. Shut down the database
3. Uninstall all postgresql 8.2 ports (client, server and client libs
we depend on)
4. Install all postgresql 8.3 ports
5. Fire up the new db, restore the complete database dump
6. Restore the configs (pg_hba.conf, postgresql.conf etc.) and
restart the database
7. Start up all "db write" services again
Ideally that process shouldn't take longer than 5 minutes but step
number 4 is currently a big stumbling block as
* Building from ports will take a while
* I can't find any binary packages for 8.3 (would need i386 for
testing and amd64 for live) anywhere as far as I can see
(ftp.freebsd.org has nothing, nor do the mirrors)
* building binary packages myself is impossible on the same machines
as pkg_create can only do that with installed packages, "make
package" et. all choke when they realise you already have
82-{client,server} installed and I don't see any other way of
creating a package without installing one
How can I get out of this catch-22 /without /resorting to complicated
jail setups or even worse, manual compilations with different prefixes
and other nasties? There must be a way to get a package somehow...
Jail setups are not complicated. You could also make the packages on
another system. How about doing a make package on the server that you've
tested your application against 8.3 on? You _have_ done that, right?
That's not an option since my testing box runs i386 while the live one
runs amd64, I guess I should really invest in a testing box with the
same arch...
What makes you think that jail setups are so complicated. I set up new
jails almost every week. I get the impression that you have some reason
for avoiding the obvious solution, and I suspect it revolves around some
incorrect impression that jails are "complicated".
Ok, you're probably right, I just haven't worked with jails before and
have just read the wrong articles. I will investigate how I could
install the newer version in a jail and keep both running at the same
time during the upgrade, I'll probably run into more problems along the
way but will post again if I'm stuck.
Thanks,
Gunther
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