Re: [Libguestfs] Error running virt-v2v

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/... 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 virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html