From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k5G7a34D021338 for ; Fri, 16 Jun 2006 03:36:03 -0400 Received: from conterra.de (vvv.conterra.de [212.124.44.162]) by mx1.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k5G7a15k020373 for ; Fri, 16 Jun 2006 03:36:02 -0400 Received: from localhost (unknown [127.0.0.1]) by conterra.de (-) with ESMTP id 7B8321F4017 for ; Fri, 16 Jun 2006 09:35:50 +0200 (CEST) Received: from conterra.de ([127.0.0.1]) by localhost (vvv.conterra.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 03057-10 for ; Fri, 16 Jun 2006 09:35:45 +0200 (CEST) Message-ID: <44925F50.2000108@conterra.de> Date: Fri, 16 Jun 2006 09:35:44 +0200 From: =?ISO-8859-1?Q?Dieter_St=FCken?= MIME-Version: 1.0 Subject: Re: [linux-lvm] Change from one Linux Distro to another, keeping data on LVM References: In-Reply-To: Content-Transfer-Encoding: 7bit Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: LVM general discussion and development Erik Forsberg wrote: > I'm about to change Linux distribution on a NFS file server for a > customer. They are currently running Fedora Core 3/2.6.12, and wants > to run either Suse 9.3 or Suse 10. > > The filesystem served resides on an ext3 file system located on a LVM2 > LV, with the volume group having two PVs. > > Are there anything special I need to think about when doing this? My > plan is something like this: > > 1) Make sure I have an updated copy of /etc/lvm available somewhere > else. > 2) Boot upp the installer for Suse and erase the partitions on the > first physical disk (well, actually on the first hardware RAID unit) that > are not used as a PV, and install Suse on that area of the disk. > > Hopefully, the suse partitioner will not do anything stupid with my > PVs, my VG or my LV. It's probably best to create a new VG for the > operating system, and then mount the old LV from the old VG once the > OS is in place. > > Any comments/experience on this kind of operation? I performed a similar procedure with SuSE 10.1 last week. The SuSE installer recognized all my LVM setups correctly. But I wanted to install even root and swap on LVM and only /boot on a tiny native partition. The SuSE installer disliked this by default and proposed to erase all the disk and to repartition it completely. But this was just a proposal. After I explicitly configured how to use my existing LVM configuration, the SuSE installer accepted this (with a warning about root on LVM) but it worked well. So I think, the installer won't do any bad things without asking you. As I remember, this is true for 9.3, too. Apropos LVM: I suggest to use SuSE 10.1. With a SuSE 10.0 system I again run into problems with its 2.6.13-15.8 kernel. Under special conditions PVmove hung up. I had to reset/reboot and "pvmove --abort" to recover the data. I observed this with some SuSE 9.? last year, too. Dieter.