Not able to deploy VM

Community Support
1

Please, describe the problem here and provide additional information below (if applicable) …

Front end shows verson 6.10.0.1.
I’m trying to deploy Fedora 42 from the marketplace.

Steps to reproduce:
Deploy Fedora VM from GUI/Frontend
Current results:
Getting PROLOG_FAILURE

“6.log” 26L, 4067B 1,1 Top
Sun Jun 8 09:46:57 2025 [Z0][VM][I]: New state is ACTIVE
Sun Jun 8 09:46:57 2025 [Z0][VM][I]: New LCM state is PROLOG
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: Command execution failed (exit code: 1): /var/lib/one/remotes/tm/shared/clone asimha-ubuntu:/var/lib/one//datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36 nuc3:/var/lib/one//datastores/101/6/disk.0 6 102
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: clone: Cloning /var/lib/one/datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36 in nuc3:/var/lib/one//datastores/101/6/disk.0
Sun Jun 8 09:46:59 2025 [Z0][TrM][E]: clone: Command " set -e -o pipefail
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: pushd /var/lib/one/datastores/101/6
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: rm -rf /var/lib/one/datastores/101/6/disk.0.snap
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: mkdir -p /var/lib/one/datastores/101/6/disk.0.snap
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: B_FORMAT=$(qemu-img info /var/lib/one/datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36 | grep ‘^file format:’ | awk ‘{print $3}’ || :slight_smile:
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: qemu-img create -o backing_fmt=${B_FORMAT:-raw} -b /var/lib/one/datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36 -f qcow2 /var/lib/one/datastores/101/6/disk.0.snap/0
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: rm -f /var/lib/one/datastores/101/6/disk.0
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: cd /var/lib/one/datastores/101/6/disk.0.snap
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: ln -sf . disk.0.snap
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: ln -sf disk.0.snap/0 /var/lib/one/datastores/101/6/disk.0
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: popd
Sun Jun 8 09:46:59 2025 [Z0][TrM][I]: " failed: qemu-img: Could not open ‘/var/lib/one/datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36’: Could not open ‘/var/lib/one/datastores/102/970cf3e30c28e4b8ca9aec99a9a4ef36’: No such file or directory

I have this deployed on Ubuntu (both frontends and kvm-hosts):

oneadmin@asimha-ubuntu:~$ cat /etc/os-release
PRETTY_NAME=“Ubuntu 24.04.2 LTS”
NAME=“Ubuntu”
VERSION_ID=“24.04”
VERSION=“24.04.2 LTS (Noble Numbat)”
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL=“https://www.ubuntu.com/”
SUPPORT_URL=“https://help.ubuntu.com/”
BUG_REPORT_URL=“Bugs : Ubuntu”
PRIVACY_POLICY_URL=“Data privacy | Ubuntu and Canonical Legal | Ubuntu”
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
I have also disabled apparmor
Can someone please guide me.

Expected results:
VM deploys properly

2

Hello @Ajay_Simha

Looks like the error is on the last line of the log (“failed: qemu-img: Could not open…”). Meaning that the base image is not there, or is the path is wrong.

Possible steps to solve it:

  • Check that the file exists on the frontend and the target host (nuc3):
  • If you’re using a shared datastore, make sure it’s mounted properly on all nodes.
  • Ensure the file has correct permissions for the oneadmin user

Let us know if the problem persists or if you have managed to solve it.

Cheers,

3

Hi.

As FrancJP said, appears that the image is not accesible.

have you access to dom0? Can you verify that path /var/lib/one/datastores/102/ and the image (970cf3e30c28e4b8ca9aec99a9a4ef36) exist?

Maybe your dom0 has not configured the shared storage path.