Hello,
i am using OpenNebula for the 1st time, i have one KVM Host with Ubuntu Server 24.04 LTS, and on this server a KVM VM with OpenNebula. Evertime i want to deploy a VM i get the same error. I have tried changing the disksize to a “round” number (i.e. 40960 instead of 40000) i have played around with qcow2 vs. raw and with caching. And now i am running out od ideas. It is a fresh install, version 7.0.0. - if i deploy VMs manually via the “cockpit webconsole” the VMs are running - so my host in general able to run VMs (as said OpenNebula is inside a VM on this host). I am using KVM.
Mon Sep 15 14:58:41 2025 [Z0][VMM][I]: Failed to execute virtualization driver operation: deploy.
Mon Sep 15 14:58:41 2025 [Z0][VMM][E]: DEPLOY: error: Failed to create domain from /var/lib/one//datastores/103/25/deployment.0error: internal error: QEMU unexpectedly closed the monitor (vm='one-25'): 2025-09-15T14:58:40.730096Z qemu-kvm-one: -device {"driver":"virtio-blk-pci","bus":"pci.6","addr":"0x0","drive":"libvirt-4-format","id":"virtio-disk0","bootindex":1,"write-cache":"on"}: Cannot get 'write' permission without 'resize': Image size is not a multiple of request alignmentCould not create domain from /var/lib/one//datastores/103/25/deployment.0ExitCode: 255
Mon Sep 15 14:58:41 2025 [Z0][VM][I]: New LCM state is BOOT_FAILURE
Mon Sep 15 14:58:41 2025 [Z0][VMM][I]: Failed to execute virtualization driver operation: deploy.
Mon Sep 15 14:58:41 2025 [Z0][VMM][E]: DEPLOY: error: Failed to create domain from /var/lib/one//datastores/103/25/deployment.0error: internal error: QEMU unexpectedly closed the monitor (vm='one-25'): 2025-09-15T14:58:40.730096Z qemu-kvm-one: -device {"driver":"virtio-blk-pci","bus":"pci.6","addr":"0x0","drive":"libvirt-4-format","id":"virtio-disk0","bootindex":1,"write-cache":"on"}: Cannot get 'write' permission without 'resize': Image size is not a multiple of request alignmentCould not create domain from /var/lib/one//datastores/103/25/deployment.0ExitCode: 255