@olivierlambert

I resolved it, logged in the XCP-ng console and set the NTP servers to default. All good now.
Thanks

@olivierlambert
Yes thanks Oliver. My next mission is to master backups!!

@Andrew said in Windows 2025 Standard 24H2.11 (iso release of sept 25) crash on reboot with "INACCESSIBLE BOOT DEVICE 0x7B" in XCP 8.2.1 and XCP 8.3:

fixvwc patch

Having the same isaue with a new Windows Server 2025 VM , tried to get the updates but it failed also, see attached

I have 7 other Windows VMs that are not restarting and the host is not restarting, just one of VMs on it is having this issue. It reboots every 10 -15 min.

Hola ,

One of my Win10 VMs is rebooting about every 15min. XO task shows this every few seconds API call: host.restart. Below is the raw log for it. Any ideas on how to resolve please?

{
  "id": "0mfqcj0r3",
  "properties": {
    "method": "host.restart",
    "params": {
      "force": false,
      "suspendResidentVms": false,
      "bypassBlockedSuspend": false,
      "bypassCurrentVmCheck": false,
      "id": "ccb2d0ad-a2e1-47cb-bcb7-48ea03129663"
    },
    "name": "API call: host.restart",
    "userId": "9bc9e3f0-1854-4685-b335-3ed4e2a836d7",
    "type": "api.call"
  },
  "start": 1758256508559,
  "status": "failure",
  "updatedAt": 1758256508805,
  "end": 1758256508804,
  "result": {
    "code": "NO_HOSTS_AVAILABLE",
    "params": [
      "OpaqueRef:0f44c00c-c5f9-8633-6052-7f9f394f33dc"
    ],
    "task": {
      "uuid": "67372245-0a05-d013-3089-e296da69574d",
      "name_label": "Async.host.evacuate",
      "name_description": "",
      "allowed_operations": [],
      "current_operations": {},
      "created": "20250919T04:35:08Z",
      "finished": "20250919T04:35:08Z",
      "status": "failure",
      "resident_on": "OpaqueRef:fad120ab-63b2-3e96-5fdb-b8da5da14883",
      "progress": 1,
      "type": "<none/>",
      "result": "",
      "error_info": [
        "NO_HOSTS_AVAILABLE",
        "OpaqueRef:0f44c00c-c5f9-8633-6052-7f9f394f33dc"
      ],
      "other_config": {},
      "subtask_of": "OpaqueRef:NULL",
      "subtasks": [],
      "backtrace": "(((process xapi)(filename ocaml/xapi/xapi_host.ml)(line 613))((process xapi)(filename hashtbl.ml)(line 159))((process xapi)(filename hashtbl.ml)(line 165))((process xapi)(filename hashtbl.ml)(line 170))((process xapi)(filename ocaml/xapi/xapi_host.ml)(line 609))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/xapi/rbac.ml)(line 188))((process xapi)(filename ocaml/xapi/rbac.ml)(line 197))((process xapi)(filename ocaml/xapi/server_helpers.ml)(line 77)))"
    },
    "message": "NO_HOSTS_AVAILABLE(OpaqueRef:0f44c00c-c5f9-8633-6052-7f9f394f33dc)",
    "name": "XapiError",
    "stack": "XapiError: NO_HOSTS_AVAILABLE(OpaqueRef:0f44c00c-c5f9-8633-6052-7f9f394f33dc)\n    at Function.wrap (file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/_XapiError.mjs:16:12)\n    at default (file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/_getTaskResult.mjs:13:29)\n    at Xapi._addRecordToCache (file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/index.mjs:1047:24)\n    at file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/index.mjs:1081:14\n    at Array.forEach (<anonymous>)\n    at Xapi._processEvents (file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/index.mjs:1071:12)\n    at Xapi._watchEvents (file:///opt/xo/xo-builds/xen-orchestra-202411230402/packages/xen-api/index.mjs:1244:14)"
  }
}

@olivierlambert
Yes thanks Oliver. My next mission is to master backups!!

@olivierlambert

Thanks for the quick response. The issue with making the changes seems to be my input to XO remotely via ScreenConnect, sometimes my keystrokes with numbers do not enter. I started a new ScreenConnect session and I can make the chamges to ram now.

I created a Windows 10 VM (uefi,secure boot and tpm) with sysprep applied . I shut it down and created a copy on the same host(not fast clone), I can not increase the RAM on the either VM, tried when they are both off , I cannot change the value in the RAM field in advanced setting.

@olivierlambert

I resolved it, logged in the XCP-ng console and set the NTP servers to default. All good now.
Thanks

I just installed 8.3 and xoa community how do i fix this error in displayed in xoa host - Host time and XOA time are not consistent with each other

Thanks

Should the XenServer VM Tools be installed before or after Sysprep?

@dinhngtu
Thank you I will check into Sysprep.