basic questions for minor upgrade (2.5.1 to 2.5.3)

I'm psyching myself up to migrate my Linux Plone site from
2.5.1 to 2.53. 
I'm new to Linux, so everything from making back up copies
to shutting down
Plone has a learning curve. I've found some good reference
sites with
specific command syntax, so I think I'm almost ready to dive
in.

But before I do I need some clarification:

-  Can I upgrade straight from 2.5.1 to 2.5.3, or do I need
to step to 2.5.2
first, then 2.5.3?  This isn't clear in the doc I've found.

-  The readme for the Linux Unified Installer says that
"installer-based
automatic upgrades are not supported", and I'll have to
copy over my Data.fs
and third-party products to a new folder.  But the upgrade
doc I found on
plone.org says that if you're using "the
installers", you shouldn't have to
worry about that.  I know the Windows installer just
"overwrote" my existing
Plone files with the upgrades.  

It makes it sound like I've got to effectively do a new
Plone installation
just to migrate.  If so, then I've got to really plan for my
site to be down
a while, especially if I've got to step to 2.5.2 first. 

Thanks for any guidance, 
Bob


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bmoon wrote:
> -  Can I upgrade straight from 2.5.1 to 2.5.3, or do I
need to step to 2.5.2
> first, then 2.5.3? 

You can upgrade straight from any supported old version
(2.5.1) to the 
new version (2.5.3), the upgrade procedure will go through
all 
intermediate steps.

> -  The readme for the Linux Unified Installer says that
"installer-based
> automatic upgrades are not supported", and I'll
have to copy over my Data.fs
> and third-party products to a new folder.  But the
upgrade doc I found on
> plone.org says that if you're using "the
installers", you shouldn't have to
> worry about that. 

The recommended procedure is documented in:
h
ttp://plone.org/documentation/manual/upgrade-guide

I don't think this document says that.

> It makes it sound like I've got to effectively do a new
Plone installation
> just to migrate.

Yes, and move Data.fs over and so on.

 > If so, then I've got to really plan for my site to be
down
> a while

You should prepare the upgrade in a test environment. Once
it's all 
prepared, repeating the procedure in the production
environment 
shouldn't take more than a couple of minutes downtime.

-- 
René
http://www.applinet.nl

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René Pijlman wrote:
> 
> The recommended procedure is documented in:
> h
ttp://plone.org/documentation/manual/upgrade-guide
> 
> I don't think this document says that.
> 

Actually, my quote was from Step 3 "General
Procedure" of the upgrade guide
you referenced.


René Pijlman wrote:
> 
> You should prepare the upgrade in a test environment.
Once it's all 
> prepared, repeating the procedure in the production
environment 
> shouldn't take more than a couple of minutes downtime.
> 

My "test environment" has been a Windows
installation I had. It worked for
learning Plone, but I guess it's not a real test environment
for upgrades. 
I don't have immediate access to another Linux box, and the
one I have isn't
completely under my control.  I guess I'll just have to do
more prep work
before I can tackle the upgrade. <sigh>

Thanks for your help,
Bob

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bmoon wrote:
> I'm psyching myself up to migrate my Linux Plone site
from 2.5.1 to 2.53. 
> I'm new to Linux, so everything from making back up
copies to shutting down
> Plone has a learning curve. I've found some good
reference sites with
> specific command syntax, so I think I'm almost ready to
dive in.
> 
> But before I do I need some clarification:
> 
> -  Can I upgrade straight from 2.5.1 to 2.5.3, or do I
need to step to 2.5.2
> first, then 2.5.3?  This isn't clear in the doc I've
found.

I upgraded from 2.1.4 to 2.5.2 without difficulty, so I'd
give it a 
whirl!  The migration tools are (for the most part)
excellent. 
Generally problems will come from any third party products,
which don't 
get updated at the same speed.

> -  The readme for the Linux Unified Installer says that
"installer-based
> automatic upgrades are not supported", and I'll
have to copy over my Data.fs
> and third-party products to a new folder.  But the
upgrade doc I found on
> plone.org says that if you're using "the
installers", you shouldn't have to
> worry about that.  I know the Windows installer just
"overwrote" my existing
> Plone files with the upgrades.  

I don't use the installers, just the tarball.  This allows
me to keep 
2.0, 2.1 and 2.5 instances all on the one server, each using
their own 
version of Zope.  I've been migrating several now elderly
sites over the 
course of a few months when I get time.

> It makes it sound like I've got to effectively do a new
Plone installation
> just to migrate.  If so, then I've got to really plan
for my site to be down
> a while, especially if I've got to step to 2.5.2 first.


Don't bring your site down.  If there's disk space, leave it
alone and 
install another Zope instance to do your migration work.  It
will 
respond slowly if you're short of RAM and using both at
once.

You'll need to set it to another port, install the new
plone, copy over 
the Data.fs, and finally when you're happy it works change
the Apache 
rewrite rules to point to it.

I'm no expert, but I'm happy that a colleague pointed me
this way in 
2003.  They're a helpful bunch...


cawb 


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