From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <3CAFCEBB.7860B8E4@vtc.edu.hk> From: Nick Urbanik MIME-Version: 1.0 Subject: Re: [linux-lvm] Red Hat upgrade over existing LVM References: <3CAE9F23.3C58CB1E@vtc.edu.hk> Content-Transfer-Encoding: 7bit Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Sat Apr 6 22:44:02 2002 List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-lvm@sistina.com Terje Kvernes wrote: > Nick Urbanik writes: > > > We have a number of servers with /usr and /var on LVM. The > > difficulty arises when upgrading from one version of Red Hat to > > another; the installation disks do not recognise the logical > > volumes. > > a well known issue. > > > Do any of you have any reasonable approach to solving this? > > if you want to do the "normal" thing with a CD-boot-upgrade, no, > you're fscked. > > > Do I need to create a new network installation boot disk with a > > small kernel with support for LVM and scripts to turn on LVM groups? > > that's one way, the easier way is to either use apt Does apt work with Red Hat in a usable way? I tried it a long time ago, and deleted it. > or red-carpet to > upgrade your distro. with red-carpet, fiddle with > /etc/redhat-release, apt has dist-upgrade, I think. I've upgraded > two machines from 7.0 -> 7.2 with red-carpet, but I'd advice you to > set off a day with this, even if you get the rpms from somewhere > besides ximian. > > I did it as follows: grab the rpms from RH7.2, with the updates, > from a local mirror, and dump them to /var/cache/redcarpet, then > fiddle with /etc/redhat-release (feel free to install the rpm > "redhat-release"), then run red-carpet. things will break and fail > now and then, fiddle. I have used rpmfind --autoupgrade to upgrade from 7.1 to 7.2, and that required not a huge amount of manual intervention, but more than I want. I tried using rpmfind to upgrade this machine from 7.2 to 7.2.93, but it changed my /lib/ld-linux.so and everything ground to a halt. I had to reboot with init=/sbin/sash to fix it. Now I have created a directory /static, containing lots of statically compiled tools, including the LVM tools. We really need a rescue disk that supports LVM, RAID, reiserfs and ext3. Anyone seen such a beast, or do I have to make it myself? > these days I have a RH7.2-box that has an uptime of about 240 days. > :) So you are not yet running a recent kernel? -- Nick Urbanik RHCE nicku@vtc.edu.hk Dept. of Information & Communications Technology Hong Kong Institute of Vocational Education (Tsing Yi) Tel: (852) 2436 8576, (852) 2436 8579 Fax: (852) 2436 8526 PGP: 53 B6 6D 73 52 EE 1F EE EC F8 21 98 45 1C 23 7B ID: 7529555D GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24