[Libguestfs] Error running virt-v2v

[Eoghan O'Hara]

Hi Richard,

Yes the issue is with my filesystem.

Thank you for the support!
Eoghan
Eoghan O'Hara | Data Scientist | *Kx* | +353 858398926 | eohara at kx.com |
Pronounced "oh-an"


On Mon, 22 Mar 2021 at 11:53, Richard W.M. Jones <rjones at redhat.com> wrote:

> On Mon, Mar 22, 2021 at 10:11:08AM +0000, Eoghan O'Hara wrote:
> > Hi Richard,
> >
> > I included -v and -x, and have attached the output below.
>
> The reason is when we create the output, the target device is not
> writable, apparently it's a read-only filesystem:
>
>   [  65.4] Copying disk 1/1 to
> /datassd/3/libvirt/Appliances/kx-platform-vm-20210318-123942-sda (qcow2)
>   ...
>   libguestfs: trace: disk_create
> "/datassd/3/libvirt/Appliances/kx-platform-vm-20210318-123942-sda" "qcow2"
> 262144000000 "preallocation:sparse" "compat:1.1"
>   libguestfs: command: run: qemu-img
>   libguestfs: command: run: \ create
>   libguestfs: command: run: \ -f qcow2
>   libguestfs: command: run: \ -o preallocation=off,compat=1.1
>   libguestfs: command: run: \
> /datassd/3/libvirt/Appliances/kx-platform-vm-20210318-123942-sda
>   libguestfs: command: run: \ 262144000000
>   qemu-img:
> /datassd/3/libvirt/Appliances/kx-platform-vm-20210318-123942-sda: Could not
> create file: Read-only file system
>
> You're using “-o libvirt -os Appliances” which means it's trying to
> use a libvirt storage pool called “Appliances”, which presumably is
> mapped to /datassd/3/libvirt/Appliances in your case.  You can find
> out about libvirt storage pools here:
>
>
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-managing_guest_virtual_machines_with_virsh-storage_pool_commands#section-virsh-pool-info
>
> Might be best to use “-o local -os /some/writable/directory” and then
> you will end up with a libvirt XML file and the raw disks, and you can
> choose what to do with them.
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat
> http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
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> http://libguestfs.org/virt-builder.1.html
>
>
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