Re: [Users] Linux sysprep

I DO this, sorry. 2013/8/19 Louis Coilliot <louis.coilliot(a)think.fr&gt; > Hello, > > I usually does this : > > http://www.kermit.fr/lofic/snipper/20/ > > Regards, > > Louis Coilliot > > > 2013/8/19 René Koch (ovido) <r.koch(a)ovido.at&gt; > > 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 >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users