Networker

Re: [Networker] How to reinstall and backup at the same time a Linux machine?

2008-02-07 13:09:24
Subject: Re: [Networker] How to reinstall and backup at the same time a Linux machine?
From: Stan Horwitz <stan AT TEMPLE DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 7 Feb 2008 13:03:59 -0500
On Feb 7, 2008, at 12:37 PM, Manel Rodero wrote:

Hello,

We have a Linux client named 'machine1' (IP 10.10.10.10) declared in our Legato server. The backups are running perfectly for it.

We are in the process of upgrade the hardware of this machine to a new one. We have installed the new machine, we have named it 'machine1' (at the OS level, hostname, etc.) and installed Legato client. The new machine is connected to the network using a different IP 10.10.10.20.

At the DNS level we have created a new name 'new_machine1' and assigned it the IP address 10.10.10.20.

In the Legato server we have added the new machine 'new_machine1' as we would like to have backups while the installation process but ... we can't. As we try to do a backup we get the following error:

* new_machine1:/ 1 retry attempted
* new_machine1:/ 39078:save: File index error: permission denied, `root' on `new_machine1' must have remote access privilege to client machine1.

I suspect that the new machine when contacting Legato is using its real name at the OS level (machine1) but we need to use its temporary name for doing the backups while the reinstall process.

At the end we will shutdown the old 'machine1' and replace with the new hardware. Then we will delete the 'new_machine1' client in Legato and use the 'machine1' definition.

How can we do these temporary backups?

To back up the new machine, just create a new client entry for it with its name "new_machine1" and in the old client entry for "machine1" add root@new_machine1 to the remote access list in order to authorize the new machine's root account to recover files from the old machine.

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