From drbd-user  Thu Feb 07 13:21:09 2008
From: Johnny Hughes <mailing-lists () hughesjr ! com>
Date: Thu, 07 Feb 2008 13:21:09 +0000
To: drbd-user
Subject: Re: [DRBD-user] Sharing RedHat RPM packages
Message-Id: <47AB05C5.9070303 () hughesjr ! com>
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Florian Haas wrote:
> Johnny,
>=20
> On Thursday 07 February 2008 13:49:38 Johnny Hughes wrote:
>> OK, I have built RPMS / SRPMS for drbd82 for both CentOS-4 and CentOS-=
5
>> (i386 and x86_64 arches).
>=20
> Sweet!
>=20
>> You can get them here, but they are CONFLICTS and not obsoletes/upgrad=
es
>> to the versions that are currently in CentOS Extras.  This is due to t=
he
>> fact that there are major changes (especially in CentOS-4) so the
>> process to upgrade should be to remove the old version, install the ne=
w
>> version, configure.
>=20
> True for the 0.7->8 transition. 0.7 and 8 are not compatible on the wir=
e, and=20
> the on-disk metadata format is different too.
>=20
> But, you can safely upgrade from 8.0 to 8.2. No need to reconfigure, no=
=20
> changes to metadata, and the only protocol incompatibilies apply if one=
 node=20
> is using 8.0 AND the other is on 8.2 AND the 8.2 node uses features not=
=20
> present in 8.0. Which clearly wouldn't apply if you just upgraded your =

> cluster from 8.0 to 8.2.

That is probably true for the 8.0 and 8.2 builds ... but I did make the=20
drbd82 versions conflicts so that drbd-8.0 and drbd82 can live in the=20
same repository and let users decide which one they want for new and old =

installs.

So, people will need to remove the old RPM and install the new ones even =

for drbd-8.0.x -> drbd82 upgrades.

Just to get it on this thread, here is a guide to move from 0.7 to 8.x=20
written by Florian:

http://fghaas.wordpress.com/2007/10/03/step-by-step-upgrade-from-drbd-07-=
to-drbd-8/

Thanks,
Johnny Hughes


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