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
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