@ditzy-olive You can not join a new XCP 8.3 host to an existing 8.2 pool. You can setup your new host as 8.2 and join it to the 8.2 pool and then upgrade everything to 8.3 using the correct procedure.... Or as you stated. Add the new 8.3 host to the upgraded 8.3 pool.

antoher log from listPartitions : { "id": "0miuq9mt5", "properties": { "method": "backupNg.listPartitions", "params": { "remote": "92ed64a4-e073-4fe9-8db9-11770b7ea2da", "disk": "/xo-vm-backups/b1eef06b-52c1-e02a-4f59-1692194e2376/vdis/87966399-d428-431d-a067-bb99a8fdd67a/5f28aed0-a08e-42ff-8e88-5c6c01d78122/20251206T161106Z.alias.vhd" }, "name": "API call: backupNg.listPartitions", "userId": "22728371-56fa-4767-b8a5-0fd59d4b9fd8", "type": "api.call" }, "start": 1765051796921, "status": "failure", "updatedAt": 1765051856924, "end": 1765051856924, "result": { "url": "https://10.xxx.xxx.61/api/v1", "originalUrl": "https://10.xxx.xxx.61/api/v1", "message": "HTTP connection has timed out", "name": "Error", "stack": "Error: HTTP connection has timed out\n at ClientRequest.<anonymous> (/usr/local/lib/node_modules/xo-server/node_modules/http-request-plus/index.js:61:25)\n at ClientRequest.emit (node:events:518:28)\n at ClientRequest.patchedEmit [as emit] (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/log/configure.js:52:17)\n at TLSSocket.emitRequestTimeout (node:_http_client:849:9)\n at Object.onceWrapper (node:events:632:28)\n at TLSSocket.emit (node:events:530:35)\n at TLSSocket.patchedEmit [as emit] (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/log/configure.js:52:17)\n at TLSSocket.Socket._onTimeout (node:net:595:8)\n at listOnTimeout (node:internal/timers:581:17)\n at processTimers (node:internal/timers:519:7)" } } { "id": "0miunp2s1", "properties": { "method": "backupNg.listPartitions", "params": { "remote": "92ed64a4-e073-4fe9-8db9-11770b7ea2da", "disk": "/xo-vm-backups/b1eef06b-52c1-e02a-4f59-1692194e2376/vdis/87966399-d428-431d-a067-bb99a8fdd67a/5f28aed0-a08e-42ff-8e88-5c6c01d78122/20251203T161431Z.alias.vhd" }, "name": "API call: backupNg.listPartitions", "userId": "22728371-56fa-4767-b8a5-0fd59d4b9fd8", "type": "api.call" }, "start": 1765047478609, "status": "failure", "updatedAt": 1765047530203, "end": 1765047530203, "result": { "code": -32000, "data": { "code": 5, "killed": false, "signal": null, "cmd": "vgchange -an cl", "stack": "Error: Command failed: vgchange -an cl\nFile descriptor 27 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 28 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 35 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 38 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 39 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\n WARNING: Not using device /dev/loop3 for PV 3C2k4y-QHLd-KfQH-HACR-NVP5-HK3u-qQdEbl.\n WARNING: PV 3C2k4y-QHLd-KfQH-HACR-NVP5-HK3u-qQdEbl prefers device /dev/loop1 because device is used by LV.\n Logical volume cl/root in use.\n Can't deactivate volume group \"cl\" with 1 open logical volume(s)\n\n at genericNodeError (node:internal/errors:984:15)\n at wrappedFn (node:internal/errors:538:14)\n at ChildProcess.exithandler (node:child_process:422:12)\n at ChildProcess.emit (node:events:518:28)\n at ChildProcess.patchedEmit [as emit] (/usr/local/lib/node_modules/@xen-orchestra/proxy/node_modules/@xen-orchestra/log/configure.js:52:17)\n at maybeClose (node:internal/child_process:1104:16)\n at Process.ChildProcess._handle.onexit (node:internal/child_process:304:5)\n at Process.callbackTrampoline (node:internal/async_hooks:130:17)" }, "message": "Command failed: vgchange -an cl\nFile descriptor 27 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 28 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 35 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 38 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\nFile descriptor 39 (/dev/fuse) leaked on vgchange invocation. Parent PID 3769972: node\n WARNING: Not using device /dev/loop3 for PV 3C2k4y-QHLd-KfQH-HACR-NVP5-HK3u-qQdEbl.\n WARNING: PV 3C2k4y-QHLd-KfQH-HACR-NVP5-HK3u-qQdEbl prefers device /dev/loop1 because device is used by LV.\n Logical volume cl/root in use.\n Can't deactivate volume group \"cl\" with 1 open logical volume(s)\n" } }

I'm seeing something similar, not sure if its the same issue, but mine stops at 95% and just hangs there: [12:18 sto-xcp1 ~]# xe task-list uuid ( RO) : c1056d36-b195-056a-4121-e82d7fc851fb name-label ( RO): [XO] Importing content into VDI [ESXI]DEBIAN 12 fiona.iextreme.org-flat.vmdk on SR Local storage name-description ( RO): status ( RO): pending progress ( RO): 0.950 The nbdkit debug-log can be found here: https://mirror2.iextreme.org/temp/stderr Edit: some additional info Xen Orchestra, commit 1640a Master, commit 1640a

Let me ping @mathieuRA