@edsilber Ticket#7737661 submitted

@acebmxer Here's the broken dependency. I'll give the forums a day or so and submit at ticket. Thank you for testing and responding.

[17:05 18] xoa@xoa:apt$ sudo apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
git is already the newest version (1:2.39.2-1.1).
pkg-config is already the newest version (1.8.1-1).
make is already the newest version (4.3-4.1).
make set to manually installed.
libc-bin is already the newest version (2.36-9+deb12u4).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libx11-dev : Depends: libx11-6 (= 2:1.7.2-1+deb11u2) but 2:1.8.4-2+deb12u2 is to be installed
              Depends: libxcb1-dev but it is not going to be installed
 libxml2-dev : Depends: libxml2 (= 2.9.10+dfsg-6.7+deb11u9) but 2.9.14+dfsg-1.3~deb12u1 is to be installed
 ocaml-nox : Depends: libncurses5-dev
E: Unable to correct problems, you have held broken packages.

@acebmxer Sadly the appliance install attempt fails.

Looking at logs there's a broken dependency somewhere.
I just wanted to know if other people are seeing the same thing in the appliance or if it's something in my environment that needs to be repaired.

{
  "id": "0mmwhu52h",
  "properties": {
    "method": "esxi.installNbdInfoFromSource",
    "params": {},
    "name": "API call: esxi.installNbdInfoFromSource",
    "userId": "e36282a5-4332-4681-8709-93e423768f93",
    "type": "api.call"
  },
  "start": 1773865698857,
  "status": "failure",
  "updatedAt": 1773865699165,
  "tasks": [
    {
      "id": "bot33xexbad",
      "properties": {
        "name": "Compile and installl nbdinfo"
      },
      "start": 1773865698857,
      "status": "failure",
      "tasks": [
        {
          "id": "lvl19oyl51n",
          "properties": {
            "name": "create directory"
          },
          "start": 1773865698857,
          "status": "success",
          "end": 1773865698858,
          "result": "/tmp/xo-server6dcLvS"
        },
        {
          "id": "exgxd1t73fr",
          "properties": {
            "name": "check if nbdinfo is already connected"
          },
          "start": 1773865698858,
          "status": "success",
          "end": 1773865698870
        },
        {
          "id": "4drglc7aky5",
          "properties": {
            "name": "check if user is root"
          },
          "start": 1773865698870,
          "status": "success",
          "end": 1773865698880
        },
        {
          "id": "qzlskxwzsm",
          "properties": {
            "name": "check if os is debian based"
          },
          "start": 1773865698880,
          "status": "success",
          "end": 1773865698891
        },
        {
          "id": "rgjstdhd95",
          "properties": {
            "name": "installing dependencies"
          },
          "start": 1773865698891,
          "status": "failure",
          "end": 1773865699165,
          "result": {
            "code": 100,
            "killed": false,
            "signal": null,
            "cmd": "apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin",
            "message": "Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\n",
            "name": "Error",
            "stack": "Error: Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\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/xo-server/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)"
          }
        }
      ],
      "infos": [
        {
          "message": "temp directory is /tmp/xo-server6dcLvS"
        }
      ],
      "end": 1773865699165,
      "result": {
        "code": 100,
        "killed": false,
        "signal": null,
        "cmd": "apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin",
        "message": "Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\n",
        "name": "Error",
        "stack": "Error: Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\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/xo-server/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)"
      }
    }
  ],
  "end": 1773865699165,
  "result": {
    "code": 100,
    "killed": false,
    "signal": null,
    "cmd": "apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin",
    "message": "Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\n",
    "name": "Error",
    "stack": "Error: Command failed: apt-get install -y git dh-autoreconf pkg-config make libxml2-dev ocaml libc-bin\nE: Unable to correct problems, you have held broken packages.\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/xo-server/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)"

Hoping that other people are having the same issue
Updated one of my test environments to XO6. I wet to test the V2v process and am stuck at the first step on adding nbdinfo.

I don't remember my exact sequence in Events. But in troubleshooting I worked manually installing libnbd.
That at least gave me results when I used the web interface that my version of nddingo was 1.6.1 when It expected 1.23.4
Web searches recommended adding a backport repo. But I thought that generally speaking XOA environment is supposed to be mostly an appliance and we shouldn't be messing with the underlying operating system.

Is anyone else seeing something similar?
I'm on Current version: 6.2.2 - XOA build: 20240311

@DustinB

Question on the cron pattern results.
Your results for cron are 0 8 28 9 * but October is selected and the sample set shows october items.
Is this a bug or a european code set vs US code set. 0-11 for months vs 1-12?

I might schedule via the jobs tab and cancel after
Thanks, for now I just used at and an xe comnand from the host where the vm lives

at now + 1 minute
at> xe vm-snapshot vm=testvmnew-name-label="snap test" new-name-description="snap via cli"
at> ctrl D to save

job runs fine.

I guess I can put in our feature request to have a single job run using AT.

I'm trying to schedule a snapshot for 8:00 AM later this week. I've got the task created but when I go to the schedules I only get repeating cron results, I can't get it down to a single event. How can I make the equivalent of an at versus a cron.

And another possibly dumb question, Cron syntax seems to use months 1 through 12 but the web GUI seems to generate 0-11

Anybody have a sense of impact and scope of recently released redis security alert? CVE-2025-49844 I see 6x in some of our older xo environments and 7.0.xx in xoa

We have a ticket in but wondering if anybody else has started troubleshooting this yet

Last login: Tue Aug 26 08:08:15 2025 from 10.136.192.170
$ redis-server
3379289:C 07 Oct 2025 11:56:33.844 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
3379289:C 07 Oct 2025 11:56:33.844 # Redis version=7.0.15, bits=64, commit=00000000, modified=0, pid=3379289, just started

@edsilber Ticket#7737661 submitted

@olivierlambert said in XCP vm fails to boot after newest kernel applied.:

For such issues, it's a lot better to create a support ticket. We could point you to get more detailed output (or serial) to understand exactly what's causing the boot to fail

Reply

Sure thing, we were just trying to triage this morning. "Yes this seems to be real & Don't update until we know more" bought us a little time until we could move to next steps. Ticket incoming...

We have a ticket from some users who were unable to boot their Xen vms after updating to the newest Red Hat kernel (4.18.0-553.50.1.el8_10.x86_64) That same kernel seems to work ok on VMware. We've seen references to it in the wild https://forums.almalinux.org/t/kernel-panic-4-18-0-553-50-1-el8-10-x86-64-on-xenserver-8-4/5754
We're telling our users to hold off on that patch until we know more.
The xen security advisory is from back in December but looks like the fix implementation has broken something. https://xenbits.xen.org/xsa/advisory-466.html
Any workarounds known?