[virt-tools-list] Scripting virt-install to automate image building

[Cole Robinson]

On 01/19/2014 05:05 PM, Anthony Shortland wrote:
> Hi Cole,
> 
> Thanks for the suggestions. Here's where I'm at now:
> 
> [root at oel63-virt tmp]# virt-install --name=minimal --ram=512 --vcpus=1
> --accelerate --hvm --network network:default
> --disk=/var/lib/libvirt/images/minimal.img,size=3
> --location=http://192.168.122.1/OracleLinux-R6-U3-Server-x86_64-dvd --graphics=none
> --noautoconsole --wait=-1 --serial=file,path=/tmp/minimal.log
> '--extra-args=ks=http://192.168.122.1/kickstart/minimal-ks.cfg console=ttyS0'
> 
> Starting install...
> Retrieving file .treeinfo...
>                                                                                 |
> 3.0 kB     00:00 <x-apple-data-detectors://5> ... 
> Retrieving file vmlinuz...
>                                                                                   |
> 7.6 MB     00:00 <x-apple-data-detectors://7> ... 
> Retrieving file initrd.img...
>                                                                                |
>  58 MB     00:00 <x-apple-data-detectors://8> ... 
> Allocating 'minimal.img'
>                                                                                     |
> 3.0 GB     00:00 <x-apple-data-detectors://10>     
> Creating domain...
>                                                                                           |
>    0 B     00:00 <x-apple-data-detectors://11>     
> Domain installation still in progress. Waiting for installation to complete.
> 
> ... I added "--serial=file,..." in order to log in the install, which ends as
> follows:
> 
> .
> ,
> .
> terminating anaconda...done
> sending termination signals...done
> sending kill signals...Done
> disabling swap...
>        /dev/dm-1
> unmounting filesystems...
>        /mnt/runtime done
>        disabling /dev/loop0
>        /dev/pts done
>        /selinux done
>        /mnt/sysimage/boot done
>        /mnt/sysimage/dev/pts done
>        /mnt/sysimage/dev/shm done
>        /mnt/sysimage/dev done
>        /mnt/sysimage/proc/bus/usb done
>        /mnt/sysimage/proc done
>        /mnt/sysimage/sys done
>        /mnt/sysimage/selinux done
>        /mnt/sysimage done
> waiting for mdraid sets to become clean...
> halting system
> System halted.
> 
> ... the new Linux system is halted since I included the "shutdown"
> (http://fedoraproject.org/wiki/Anaconda/Kickstart#shutdown) option in the
> Kickstart file, but virt-install still does not exit.
> 
> What event signals completion of domain installation? How can it be triggered
> from within the guest (which has the thread of execution with Kickstart)? Or
> do I need to wrap all this in a script, set wait=0, track the logged output
> and use some sort of virsh command to signal domain installation completion?
> 

Maybe it's some halt vs poweroff issue? Not sure.

https://stackoverflow.com/questions/15460754/halt-and-poweroff

Try sticking a 'shutdown' at the end of your kickstart?

Whatever the issue is, it's unlikely a virt-install or libvirt issue, since
they aren't in play if the VM tries to shut itself down.

Watching the serial output was only a suggestion if you can't get the VM to
shutdown on its own, typically that shouldn't be required.

- Cole