http://libguestfs.org/virt-sysprep.1.html http://linux.die.net/man/1/virt-sysprep
On 19 August 2013 18:12, Louis Coilliot <[email protected]> wrote: > I DO this, sorry. > > > 2013/8/19 Louis Coilliot <[email protected]> > >> Hello, >> >> I usually does this : >> >> http://www.kermit.fr/lofic/snipper/20/ >> >> Regards, >> >> Louis Coilliot >> >> >> 2013/8/19 René Koch (ovido) <[email protected]> >> >> Hi, >>> >>> Has anyone an idea what's the easiest way to sysprep Linux (CentOS 6 and >>> RHEL 6) machines? >>> >>> The use case is the following: I want to create a lot of virtual >>> machines (e.g. 100) by cloning from one template. >>> So I create a master vm, create a template and a pool with 100 vms >>> assigned to it and set all 100 vms to prestarted. >>> >>> The problem is now, that when I run "sys-unconfig" before creating the >>> template, which does a "touch /.unconfigured" I have to go through the >>> sysconfig-tui and set a new root password for all 100 hosts. >>> >>> So what I'm looking for is a script like the sysprep tool for windows >>> which sets parameters for me automatically. >>> I only need to change: >>> * Hostname + set DHCP_HOSTNAME in ifcfg-eth0 (Hostname == Pool-VM-Name) >>> for some dhcp/ddns magic :) >>> * Clear udev network-rules >>> * remove SSH-Keys >>> * Remove RHN ID and join Satellite/Spacewalk-server >>> * root-password,... should stay the same >>> >>> My first question is: does oVirt provide such a functionality for Linux >>> guest out-of-the-box? I couldn't find one. >>> >>> >>> I think I could solve this with virt-sysprep and virt-file, but I'm >>> unsure if I can use it with oVirt (or only with plain libvirt): >>> http://libguestfs.org/virt-sysprep.1.html >>> http://libguestfs.org/virt-edit.1.html >>> >>> For this tools it's required that the vm is not running, as it changes >>> files on the disk. If I'm using a before-vm-start hook, it should be >>> save to access the disk and change content with virt-sysprep/virt-file, >>> right? >>> But do I have access to the disk in a before-vm-start hook? >>> If using NFS storage I should be able to access all disks on the >>> NFS-share, but for iSCSI/FC-LUNS - are they available on the hypervisor >>> in this stage? >>> >>> >>> Another option would be to write a custom script which is started during >>> boot and disables itself after successful run (in the same way as >>> firstboot - I already have such a script for RHN Satellite/Spacewalk >>> joins). The problem here is: How do I get the (oVirt) name of this vm >>> (would need something like virt-whoami :) )? Is the (internal oVirt) ID >>> of this vm stored somewhere in the filesystem of this vm? I don't think >>> so.... >>> >>> >>> Thanks a lot for suggestions, >>> René >>> >>> >>> >>> _______________________________________________ >>> Users mailing list >>> [email protected] >>> http://lists.ovirt.org/mailman/listinfo/users >>> >> >> > > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users > >
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