Skip to main content

Hello

Hello

I'm trying to make a proxmox backup for a cluster in a POC
Fresh install of Veeam with latest patch
fresh install of proxmox 8, with latest patch (experimental, no subscription)

I created the pve proxies with a user as I found in the Veeam documentationhere is the "config"

as root on pve shell 

useradd svc-prx-veeam
passwd svc-prx-veeam


nano /etc/sudoers.d/veeam

add these lines
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/dmidecode -s system-uuid
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/kvm -S *
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/qemu-img info *
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/qemu-img create *
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/qm create *
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/qm ^showcmd [0-9]+ --pretty$
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/qm ^unlock [0-9]+$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/socat ^TCP-LISTEN:[0-9]+,bind=127\.0\.0\.1 UNIX-CONNECT:/[a-zA-Z0-9_./-]+$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/mkdir -p /var/lib/vz/snippets/
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/pvenode cert info --output-format json
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/pvesh ^get storage/([a-zA-Z0-9_-]+) --output json$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/pvesh ^set /nodes/([a-zA-Z0-9_-]+)/qemu/([0-9]+)/config --lock ([a-zA-Z]+)$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/pkill -9 -e -f -x socat *
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/lvchange -ay *
svc-prx-veeam ALL=(root) PASSWD: /usr/sbin/lvchange -an *
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/rbd device map *
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/mv ^-n /tmp/([a-zA-Z0-9_-]+\.config) /var/lib/vz/snippets/([a-zA-Z0-9_-]+\.config)$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/rm ^/[a-zA-Z0-9_/-]+/VeeamTmp[a-zA-Z0-9_.-]+$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/rm ^-f /[a-zA-Z0-9_/-]+/VeeamTmp[a-zA-Z0-9_.-]+$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/rm ^-f /var/lib/vz/snippets/[a-zA-Z0-9_-]+\.config$
svc-prx-veeam ALL=(root) PASSWD: /usr/bin/rm ^-f /var/lib/vz/template/iso/[a-zA-Z0-9_.-]+\.img$

 

 

note that this  doesn't add the home dir, no issue while adding, but the job fails with an error about the home dir
I added the homedir with mkhomedir_helper

the job still fails but the error is different
before

Failed to reach the hypervisor. Error output: Could not chdir to home directory /home/svc-prx-veeam: No such file or directory

now

Error output: sh: 1: Syntax error: "(" unexpected
 

 

2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: Failed to connect to the QMP device using SSH: Veeam.Vbf.Common.Exceptions.ExceptionWithDetail: Failed to reach the hypervisor. Error output: sh: 1: Syntax error: "(" unexpected
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]:
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command, Int32[] successStatusCodes)
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command)
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: at Veeam.Vbf.Project.Utilities.Ssh.ProxmoxSshClient.FindFreePortOnConnectedHost(UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: at Veeam.Vbf.BackupAgent.BackupProxmox.ProxmoxBackupRestoreUtils.FindFreePortOnConnectedHost(ProxmoxSshClient sshClient, UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8176 00006 [1521] ERROR | [SshQmpSocket]: at Veeam.Vbf.BackupAgent.BackupProxmox.Qmp.SshQmpSocket.ConnectAsync(String path, CancellationToken cancellationToken)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: Failed to connect the NBD server to the hypervisor host: Veeam.Vbf.Common.Exceptions.ExceptionWithDetail: Failed to reach the hypervisor. Error output: sh: 1: Syntax error: "(" unexpected
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]:
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command, Int32[] successStatusCodes)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.Project.Utilities.Ssh.ProxmoxSshClient.FindFreePortOnConnectedHost(UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.BackupAgent.BackupProxmox.ProxmoxBackupRestoreUtils.FindFreePortOnConnectedHost(ProxmoxSshClient sshClient, UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.BackupAgent.BackupProxmox.Qmp.SshQmpSocket.ConnectAsync(String path, CancellationToken cancellationToken)
2025-07-05 00:52:25.8243 00006 [1521] ERROR | [NbdEngine]: at Veeam.Vbf.BackupAgent.BackupProxmox.Engine.NbdEngine.ConnectToHostAsync(Int32 vmId, Boolean closeOtherBackup, CancellationToken cancellationToken)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: Failed to perform backup: System.Exception: Failed to connect the NBD server to the hypervisor host
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: ---> Veeam.Vbf.Common.Exceptions.ExceptionWithDetail: Failed to reach the hypervisor. Error output: sh: 1: Syntax error: "(" unexpected
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]:
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command, Int32[] successStatusCodes)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.Project.Utilities.Ssh.CommandExecutors.CommandExecutorExtensions.ExecuteCommandEnsureExitSuccess(ICommandExecutor commandExecutor, String command)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.Project.Utilities.Ssh.ProxmoxSshClient.FindFreePortOnConnectedHost(UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.BackupAgent.BackupProxmox.ProxmoxBackupRestoreUtils.FindFreePortOnConnectedHost(ProxmoxSshClient sshClient, UInt32 rangeBegin, UInt32 rangeEnd)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.BackupAgent.BackupProxmox.Qmp.SshQmpSocket.ConnectAsync(String path, CancellationToken cancellationToken)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.BackupAgent.BackupProxmox.Engine.NbdEngine.ConnectToHostAsync(Int32 vmId, Boolean closeOtherBackup, CancellationToken cancellationToken)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: --- End of inner exception stack trace ---
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.BackupAgent.BackupProxmox.Engine.NbdEngine.ConnectToHostAsync(Int32 vmId, Boolean closeOtherBackup, CancellationToken cancellationToken)
2025-07-05 00:52:25.8293 00006 [1521] ERROR | [ProxmoxBackupManager]: at Veeam.Vbf.BackupAgent.BackupProxmox.ProxmoxBackupManager.PerformBackupAsync(Int32 vmId, String vmName, String vmNodeId, List`1 disksToBackup, VbrVmBackupSession vbrBackupSession, VmBackupParams vmBackupParams, ProxmoxSshClient sshClient, CancellationToken ct)
2025-07-05 00:52:25.8302 00006 [1521] INFO | [ProxmoxBackupManager]: Finalize backup

this happens just after the Peforming backup…. line in the log, there are successul ssh interactions before that line

2025-07-05 00:52:07.4388 00006 [1521] INFO  | [SshClientExtensions]: Starting shell creation
2025-07-05 00:52:07.8179 00006 [1521] INFO | [SshClientExtensions]: Successfully created the shell stream
2025-07-05 00:52:07.8350 00006 [1521] INFO | [SshClientExtensions]: Executing the following SSH command with sudo using the shell stream: "dmidecode -s system-uuid"
2025-07-05 00:52:08.1737 00006 [1521] INFO | [TaskService]: Registering the task 15baac90-f2e5-474b-9f02-beee2f2fd833...
2025-07-05 00:52:11.2200 00025 [1521] ERROR | [ProxmoxBackupManager][ProxmoxRestClient]: <== Request "Get" "https://.....local:8006/api2/json/nodes/..../qemu/101/config", body: "{}"
2025-07-05 00:52:11.2200 00023 [1521] ERROR | [ProxmoxBackupManager][ProxmoxRestClient]: <== Request "Get" "https://.....local:8006/api2/json/nodes/..../qemu/101/pending", body: "{}"
2025-07-05 00:52:11.2200 00025 [1521] ERROR | [ProxmoxBackupManager][ProxmoxRestClient]: ==> Response "Get" "https://....local:8006/api2/json/nodes/..../qemu/101/config", "code: 401 - No ticket", duration: "3 sec 142 msec", body: ""
2025-07-05 00:52:11.2200 00023 [1521] ERROR | [ProxmoxBackupManager][ProxmoxRestClient]: ==> Response "Get" "https://....local:8006/api2/json/nodes/..../qemu/101/pending", "code: 401 - No ticket", duration: "3 sec 55 msec", body: ""
2025-07-05 00:52:11.2257 00025 [1521] INFO | [ProxmoxRestClientFactoryBase][Retry]: Authorization token is outdated during request https://.....local:8006/api2/json/nodes/..../qemu/101/config. Try relogin
2025-07-05 00:52:11.2257 00023 [1521] INFO | [ProxmoxRestClientFactoryBase][Retry]: Authorization token is outdated during request https://.....local:8006/api2/json/nodes/..../qemu/101/pending. Try relogin
2025-07-05 00:52:11.5875 00022 [1521] INFO | [ProxmoxBackupRestoreUtils]: Start registering host info
2025-07-05 00:52:11.7680 00022 [1521] INFO | [SshClientExtensions]: Starting shell creation
2025-07-05 00:52:11.8689 00022 [1521] INFO | [SshClientExtensions]: Successfully created the shell stream
2025-07-05 00:52:11.8751 00022 [1521] INFO | [SshClientExtensions]: Executing the following SSH command with sudo using the shell stream: "dmidecode -s system-uuid"
2025-07-05 00:52:11.9894 00022 [1521] INFO | [ProxmoxBackupRestoreUtils]: Using cluster for host info registration
2025-07-05 00:52:12.1538 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Finished registering host info
2025-07-05 00:52:12.1554 00006 [1521] INFO | [VbrBackupProgressReporter]: OnStartVmBackup
2025-07-05 00:52:12.1554 00006 [1521] INFO | [VbrBackupProgressReporter]: Start "Progress report"
2025-07-05 00:52:12.1635 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Creating VMB metadata
2025-07-05 00:52:12.2103 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Processed VMB metadata: {"pDisplayName":"XXX","pUserData":"{\"type\":\"vm_pve\",\"backup_config\":{\"proxmox_cluster_id\":\"238891ca-419b-e891-83d7-de7db1bd0888\",\"proxmox_node_id\":\"4c4c4544-0039-3110-8050-c6c04f384432\",\"proxmox_node_name\":\"....\",\"vm_config\":{\"Id\":\"e947ff08-e358-49f7-9404-474cb4521ba1:101\",\"Name\":\"XXXXXX\",\"CoresPerCpu\":4,\"CpuCount\":1,\"MemoryMb\":8192,\"OsType\":\"win11\",\"BiosId\":\"e947ff08-e358-49f7-9404-474cb4521ba1\",\"Numa\":false,\"Kvm\":false,\"Boot\":\"order=scsi0;ide0;net0\",\"ScsiHw\":\"virtio-scsi-single\",\"NetworkAdapters\":{\"0\":{\"Model\":\"virtio\",\"NetworkId\":\"vmbr0\",\"Firewall\":true,\"MacAddress\":\"BC:24:11:67:73:0C\",\"Disconnected\":false}},\"Disks\":[{\"Id\":\"none\",\"BusType\":\"Ide\",\"Index\":0,\"StorageId\":\"none\",\"Size\":0,\"IsCdRom\":true,\"Format\":\"\"},{\"Id\":\"NFS_INFRA:101/vm-101-disk-1.qcow2\",\"BusType\":\"Scsi\",\"Index\":0,\"StorageId\":\"NFS_INFRA\",\"Size\":96636764160,\"IsCdRom\":false,\"Format\":\"qcow2\",\"Path\":\"/mnt/pve/NFS_INFRA/images/101/vm-101-disk-1.qcow2\",\"StorageType\":\"nfs\"}],\"NodeName\":\"....\",\"Template\":false,\"Properties\":{\"cores\":\"4\",\"vmgenid\":\"4fb2604c-3633-480d-8f62-1f2c0d1377a3\",\"boot\":\"order=scsi0;ide0;net0\",\"ostype\":\"win11\",\"memory\":\"8192\",\"scsi0\":\"NFS_INFRA:101/vm-101-disk-1.qcow2,iothread=1,size=90G\",\"name\":\"XXX\",\"net0\":\"virtio=BC:24:11:67:73:0C,bridge=vmbr0,firewall=1\",\"tpmstate0\":\"NFS_INFRA:101/vm-101-disk-0.raw,size=4M,version=v2.0\",\"agent\":\"1\",\"machine\":\"pc-q35-9.2+pve1\",\"digest\":\"68ee621c14f961d3931ff46b56a515e74fb19ddd\",\"efidisk0\":\"NFS_INFRA:101/vm-101-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K\",\"numa\":\"0\",\"sockets\":\"1\",\"bios\":\"ovmf\",\"ide0\":\"none,media=cdrom\",\"meta\":\"creation-qemu=9.2.0,ctime=1751390317\",\"smbios1\":\"uuid=e947ff08-e358-49f7-9404-474cb4521ba1\",\"cpu\":\"host\",\"scsihw\":\"virtio-scsi-single\"},\"Pending\":[{\"key\":\"digest\",\"value\":\"68ee621c14f961d3931ff46b56a515e74fb19ddd\",\"delete\":false},{\"key\":\"efidisk0\",\"value\":\"NFS_INFRA:101/vm-101-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K\",\"delete\":false},{\"key\":\"numa\",\"value\":\"0\",\"delete\":false},{\"key\":\"sockets\",\"value\":\"1\",\"delete\":false},{\"key\":\"bios\",\"value\":\"ovmf\",\"delete\":false},{\"key\":\"ide0\",\"value\":\"none,media=cdrom\",\"delete\":false},{\"key\":\"meta\",\"value\":\"creation-qemu=9.2.0,ctime=1751390317\",\"delete\":false},{\"key\":\"smbios1\",\"value\":\"uuid=e947ff08-e358-49f7-9404-474cb4521ba1\",\"delete\":false},{\"key\":\"cpu\",\"value\":\"host\",\"delete\":false},{\"key\":\"scsihw\",\"value\":\"virtio-scsi-single\",\"delete\":false},{\"key\":\"cores\",\"value\":\"4\",\"delete\":false},{\"key\":\"vmgenid\",\"value\":\"4fb2604c-3633-480d-8f62-1f2c0d1377a3\",\"delete\":false},{\"key\":\"boot\",\"value\":\"order=scsi0;ide0;net0\",\"delete\":false},{\"key\":\"ostype\",\"value\":\"win11\",\"delete\":false},{\"key\":\"memory\",\"value\":\"8192\",\"delete\":false},{\"key\":\"scsi0\",\"value\":\"NFS_INFRA:101/vm-101-disk-1.qcow2,iothread=1,size=90G\",\"delete\":false},{\"key\":\"name\",\"value\":\"XXX\",\"delete\":false},{\"key\":\"net0\",\"value\":\"virtio=BC:24:11:67:73:0C,bridge=vmbr0,firewall=1\",\"delete\":false},{\"key\":\"tpmstate0\",\"value\":\"NFS_INFRA:101/vm-101-disk-0.raw,size=4M,version=v2.0\",\"delete\":false},{\"key\":\"agent\",\"value\":\"1\",\"delete\":false},{\"key\":\"machine\",\"value\":\"pc-q35-9.2+pve1\",\"delete\":false}],\"Firmware\":1,\"IsProtected\":false},\"node_version\":\"8.4.1\",\"pool_id\":\"POOL-INFRA\"},\"vm_metadata\":{\"clusterId\":\"\",\"cpuCoresCount\":4,\"cpuSocketsCount\":1,\"disks\":[{\"diskName\":\"\",\"busType\":\"Ide\",\"diskUid\":\"none\",\"vmUuid\":\"\",\"storageContainerUid\":\"none\",\"storageContainerName\":\"\",\"targetId\":\"\",\"deviceIndex\":0,\"isCdrom\":true,\"size\":0,\"isBootDisk\":false},{\"diskName\":\"\",\"busType\":\"Scsi\",\"diskUid\":\"NFS_INFRA_101_vm-101-disk-1.qcow2\",\"vmUuid\":\"\",\"storageContainerUid\":\"NFS_INFRA\",\"storageContainerName\":\"\",\"targetId\":\"\",\"deviceIndex\":0,\"isCdrom\":false,\"size\":96636764160,\"isBootDisk\":false}],\"networkAdapters\":[{\"ipAddress\":\"\",\"macAddress\":\"BC:24:11:67:73:0C\",\"networkUid\":\"vmbr0\",\"isConnected\":true}],\"networks\":[{\"networkUid\":\"vmbr0\",\"networkName\":\"vmbr0\",\"networkAddress\":\"\",\"isIpManagementOn\":false,\"gatewayIp\":\"\",\"ipPool\":[]}],\"totalMemoryInBytes\":8589934592,\"virtualMachineName\":\"XXX\",\"virtualMachineUid\":\"e947ff08-e358-49f7-9404-474cb4521ba1:101\",\"firmware\":\"uefi\",\"engine_id\":\"\",\"agent_version\":\"12.1.3.217\"},\"network_config\":[{\"Address\":\"y.y.y.y\",\"iface\":\"vmbr0\",\"Type\":\"bridge\"}],\"storage_config\":[{\"storage\":\"NFS_INFRA\",\"Type\":\"nfs\",\"Content\":\"iso,images\",\"Active\":true,\"Avail\":1470775164928,\"Enabled\":true,\"Shared\":true,\"Total\":1759218761728,\"Used\":288443596800,\"used_fraction\":0.163961187246932}],\"node_info\":{\"node\":\"....\",\"ssl_fingerprint\":\"94:E5:34:8B:1E:87:0C:4B:3A:F4:18:66:AC:4D:7A:70:4E:3E:F5:B7:81:E8:F6:D9:99:31:A9:8A:28:20:06:89\",\"status\":1,\"maxcpu\":64,\"maxmem\":270345654272},\"version\":\"1.0\"}","pDisks":{"value":0},"disksCount":0,"pOsType":"windows11_64Guest","pFqdn":"","kbBlockSize":2,"pHostInstallationId":"238891ca-419b-e891-83d7-de7db1bd0888","pObjectTag":"238891ca-419b-e891-83d7-de7db1bd0888e947ff08-e358-49f7-9404-474cb4521ba1:101"}
2025-07-05 00:52:12.2111 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Creating VMB disks metadata
2025-07-05 00:52:12.2257 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Processed VMB disks metadata: [{"pDiskKey":"NFS_INFRA_101_vm-101-disk-1.qcow2","id":{"busNumber":0,"targetId":0,"lun":0},"capacity":96636764160,"isBackedUp":true}]
2025-07-05 00:52:12.2269 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Creating VMB backup task data
2025-07-05 00:52:12.2403 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Processed backup task data: "{"structSize":0,"pInstanceId":"e947ff08-e358-49f7-9404-474cb4521ba1","pPolicy":{"value":0},"pMetadata":{"value":0},"snapshotCreationTimeUtc":0,"forceFullBackup":false,"useCallbackWriting":true,"paramsList":{"value":0},"vbrParamsList":{"value":0},"enableBitLooker":true,"compressionType":0,"pPolicySessionTag":"0c1edea2-09b3-4911-938b-f84ec3a85287","backupObjectType":{"value":0},"forceNewBackup":false,"immutableTillUtc":0,"backupId":{}}"
2025-07-05 00:52:12.2403 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Creating VMB backup policy
2025-07-05 00:52:12.2452 00006 [1521] INFO | [ProxmoxBackupRestoreUtils]: Processed VMB backup policy: "{"structSize":0,"pPolicyTag":"56f83abf-409c-4088-b378-83a48ebe6c88","pDisplayName":"Backup-INFRA","repositoryId":{},"pDescription":"Created by at 7/5/2025 12:26 AM."}"
2025-07-05 00:52:12.2634 00006 [1521] INFO | [VmbApiBackup]: Starting the VmbApi.StartInstanceBackup operation...
2025-07-05 00:52:25.2477 00006 [1521] INFO | [VmbApiBackup]: The VmbApi.StartInstanceBackup operation has been executed
2025-07-05 00:52:25.5340 00006 [1521] INFO | [ProxmoxBackupManager]: Backup session created
2025-07-05 00:52:25.5374 00006 [1521] INFO | [VbrBackupProgressReporter]: OnStartDisksBackup
2025-07-05 00:52:25.5374 00006 [1521] INFO | [VbrBackupProgressReporter]: Start "Progress report"
2025-07-05 00:52:25.5413 00006 [1521] INFO | [ProxmoxBackupManager]: Performing backup...

 

 

what could be the cause ? anyway to debug that syntax error?

any help is welcomed

Chris

Hello,

Don’t know if you solved it but we had the same behaviour.

We needed to delete our “xxveeam” local user on PVE and create it with the “adduser” command, not the useradd one.

And of course “usermod -aG sudo xxveeam”.

 


Hello,

Don’t know if you solved it but we had the same behaviour.

We needed to delete our “xxveeam” local user on PVE and create it with the “adduser” command, not the useradd one.

And of course “usermod -aG sudo xxveeam”.

 

Tremendously helpful. This solved my error: Failed to perform backup: Failed to connect the NBD server to the hypervisor host. Thank you very much!

Also, you may restrict the sudo privileges of the Veeam user according to KB4701.