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Re: [Libguestfs] failure to virt-sysprep (FC27?)



On Tue, Nov 21, 2017 at 11:43:54PM +0200, Yaniv Kaul wrote:
> Since I upgrading to FC27, I *sometimes* fail to virt-sysprep.
> The debug messages:
> libguestfs: trace: set_verbose true
> libguestfs: trace: set_verbose = 0
> libguestfs: create: flags = 0, handle = 0x7f4600005dd0, program = python2
> libguestfs: trace: set_program "lago"
> libguestfs: trace: set_program = 0
> libguestfs: trace: add_drive_ro
> "/home/ykaul/ovirt-system-tests/deployment-basic-suite-master/default/images/lago-basic-suite-master-host-0_root.qcow2"
> libguestfs: trace: add_drive
> "/home/ykaul/ovirt-system-tests/deployment-basic-suite-master/default/images/lago-basic-suite-master-host-0_root.qcow2"
> "readonly:true"
> libguestfs: creating COW overlay to protect original drive content
> libguestfs: trace: disk_format
> "/home/ykaul/ovirt-system-tests/deployment-basic-suite-master/default/images/lago-basic-suite-master-host-0_root.qcow2"
> libguestfs: command: run: qemu-img
> libguestfs: command: run: \ info
> libguestfs: command: run: \ --output json
> libguestfs: command: run: \ /dev/fd/7
> qemu-img: Could not open '/dev/fd/7': Failed to get shared "write" lock
> Is another process using the image?

Is something else using the lago-basic-suite-master-host-0_root.qcow2
image at the same time?

I'm not clear if the backend is libvirt or direct.  For libvirt we
don't have a solution to this yet, although there is a patch series
you can try:

https://www.redhat.com/archives/libvir-list/2017-November/msg00617.html

Rich.

> libguestfs: trace: disk_format = NULL (error)
> libguestfs: trace: add_drive = -1 (error)
> libguestfs: trace: add_drive_ro = -1 (error)
> 
> 
> Any ideas?
> TIA,
> Y.

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-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org


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