Crashs of VMs

March 11, 2025, 2:00 am

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I have a problem with VMs crashing every few days. At first I thought it might be the fixed issue with freezing VMs under 100% CPU needing a hard stop. But I updated everything and am still getting crashs. Although since the updates no hard stop was necessary and I don't know if the CPU was 100%.
It's mainly OPNSense and Windows VMs and happened three times in the last week. I attached logs, of the first occurence, of the other two there are no logs.
The times don't match with weekly and...

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Volume verkleinern

March 11, 2025, 2:10 am

≫ Next: vGPU with nVIDIA on Kernel 6.8

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Hallo,

ich habe bei einer Neuinstallation dummerweise ein Windows-Datenvolume zu groß angelegt. Dann habe ich es in Windows verkleinert und möchte den freigewordenen Speicher in Proxmox für andere VM zur Verfügung stellen. Das scheint auch erstmal geklappt zu haben. Aber jetzt bekomme ich eine Fehlermeldung:

root@pve:~# lvs pve-ibd
WARNING: Thin volume pve-ibd/vm-100-disk-3 maps 785.55 GiB while the size is only 600.00 GiB.
LV VG Attr LSize Pool Origin...

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vGPU with nVIDIA on Kernel 6.8

March 11, 2025, 2:12 am

≫ Next: PBS Disk full can not get free space

≪ Previous: Volume verkleinern

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Quite a few changes with vGPU software on Kernel 6.8. The feature is called "Vendor-Specific VFIO Framework".

Note you will need 550.90.05 for this to work which you can download from nVIDIA. Things like mixed size vGPU (you can now have different memory allocations on the same GPU) and live migration on KVM are now a feature (haven't tested that feature yet, more to come).
Note: current versions of the 535 and perhaps other branches may now work as well (which you may need if you are...

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PBS Disk full can not get free space

March 11, 2025, 2:17 am

≫ Next: ceph slow_ops occured but fast

≪ Previous: vGPU with nVIDIA on Kernel 6.8

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Datastore itself is on a QNAP with ISCSI Connnection
Disk ran out of disk space, deleted most of the backup groups, that is no problem as we have a second redundant backup.
even deleted mots of the backup groups disk still full, Garbage collection has errors. Waht can I do

ceph slow_ops occured but fast

March 11, 2025, 2:19 am

≫ Next: Funktioniert Proxmox (Enterprise Repository) mit neuen CPUs wie z.B. AMD EPYC 9475F und weitere Fragen...

≪ Previous: PBS Disk full can not get free space

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I got 'HEALTH_WARN: 20 slow ops, oldest one blocked for 84 sec, daemons [osd.57,osd.58,osd.59,osd.66,osd.67,osd.68,osd.77,osd.79] have slow ops.'
However, the latency of OSD is very low. just 2ms
What should I check?

Code:

# begin crush map
tunable choose_local_tries 0
tunable choose_local_fallback_tries 0
tunable choose_total_tries 50
tunable chooseleaf_descend_once 1
tunable chooseleaf_vary_r 1
tunable chooseleaf_stable 1
tunable straw_calc_version 1
tunable...

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Funktioniert Proxmox (Enterprise Repository) mit neuen CPUs wie z.B. AMD EPYC 9475F und weitere Fragen...

March 11, 2025, 2:31 am

≫ Next: Failed container upgrade - not sure how to restore

≪ Previous: ceph slow_ops occured but fast

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Erstmal Sorry, falls ich im falschen Forum schreibe. Ich bin neu hier und habe kein besseres Unterforum dafür gefunden.

Wir wollen einen neuen Cluster aufsetzen und aufgrund der neuen Preisstruktur brauchen wir eine Alternative zu VMWare. Daher habe ich ein paar Fragen, die ich gerne vor dem Kauf beantwortet hätte:

• Ich würde nach aktuellem Plan AMD EPYC 9475F CPUs kaufen (2 CPU-Maschinen). Da diese CPUs sehr neu sind die Frage: Wird diese CPU bereits von der Proxmox Enterprise...

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Failed container upgrade - not sure how to restore

March 11, 2025, 2:35 am

≫ Next: increasing the size of a legacy /boot partition

≪ Previous: Funktioniert Proxmox (Enterprise Repository) mit neuen CPUs wie z.B. AMD EPYC 9475F und weitere Fragen...

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I have an LXC container which I wanted to upgrade from Ubuntu 22.04 to 24.04 last night. I took a backup, then ran the upgrade. All seemed to go well.

Now, the container boots, but never brings up a prompt when I attach to it, either through the web interface, or when I 'pct console <lxc-id>' to it. I'll debug that separately, but for now, I'd like to just restore it from the backup. When I choose to restore from the web gui, it asks which storage to use (I assume to write the new copy of...

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increasing the size of a legacy /boot partition

March 11, 2025, 2:35 am

≫ Next: Proxmox Server startet sauber hat Netzwerk und dann plötzlich wieder nicht.

≪ Previous: Failed container upgrade - not sure how to restore

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One of my PVE nodes has been installed some years ago and even though it has always upgraded it to the newest PVE version (currently 8.4.3), one thing has been bothering me for a while.

When the node was installed, it was done by using ext4 & mdstat, ending in a partition layout like this:

Code:

$ gdisk -l /dev/sda
GPT fdisk (gdisk) version 1.0.9

[...]

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048          391167   190.0 MiB   FD00  Linux RAID
   2...

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Proxmox Server startet sauber hat Netzwerk und dann plötzlich wieder nicht.

March 11, 2025, 2:37 am

≫ Next: Migration from old to new cluster (4.4 to 8) - best strategy ?

≪ Previous: increasing the size of a legacy /boot partition

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Hallo zusammen,

mein Proxmox Server lief jetzt Jahre ohne nennenswerte Probleme.
Plötzlich waren die Container, GUI etc. über Netz nicht mehr erreichbar.
Rechner am Monitor, Tastatur angeschlossen und gestartet.
Startet ohne nennenswerte Fehler bis zur Eingabe hoch:



Mach ich von meinem iMac ein Ping im Startvorgang des Proxmox Servers, ist er kurz nach diesem Screenshot erreichbar und dann plötzlich nicht mehr.



Jemand eine Idee was ich machen könnte?

Migration from old to new cluster (4.4 to 8) - best strategy ?

March 11, 2025, 2:41 am

≫ Next: Connect pve with api token

≪ Previous: Proxmox Server startet sauber hat Netzwerk und dann plötzlich wieder nicht.

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Hi,
I've a cluster on PVE 4.4. This cluster contains ~50 CT.
I'll soon receive a new cluster on PVE 8.

I'm wondering what is the best strategy to migrate the CT from the old cluster to the new. Is the backup/restore the best strategy ? Does this work between 4.4 and 8 ? I don't know if the 8 will be able to restore *and* run the CT. I'll listen of all ideas and strategies

Best regards,
Kevin

Connect pve with api token

March 11, 2025, 2:41 am

≫ Next: Using RAID in HBA mode or remove RAID?

≪ Previous: Migration from old to new cluster (4.4 to 8) - best strategy ?

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Hi
I need to connect a pve to backup server with an api token.
How I can use it to add the storage?
I can do it by web or by cli?

Using RAID in HBA mode or remove RAID?

March 11, 2025, 2:46 am

≫ Next: LDAP Sync with nested Groups

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Hi,
I am installing ProxMox + CEPH on top of Dell PowerEdge R640 with PERC H740P Mini embedded.
Does anyone help me deciding if I must use the PERC in HBA mode or if it is preferable just disable the PERC?
Tk.

LDAP Sync with nested Groups

March 11, 2025, 2:12 am

≫ Next: Homeserver Raid setup

≪ Previous: Using RAID in HBA mode or remove RAID?

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Hello everyone,

I am currently trying to implement LDAP Sync for our Proxmox cluster.
Basically it's working fine, the only thing I don't get to sync are the user to group associations when a user is in a nested group.

This is the relevant content of my domains.cfg:

Code:

ad: example.local
    comment Active Directory authentication
    domain example.local
    server1 dc1.example.local
    bind_dn CN=Proxmox,OU=LDAP,OU=ServiceAccounts,DC=example,DC=local
    default 0
    filter...

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Homeserver Raid setup

March 11, 2025, 2:43 am

≫ Next: ACME account registration timeout

≪ Previous: LDAP Sync with nested Groups

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Hello everyone,
I would like to switch from openmediavault to Proxmox for a privately used home server. I have given some thought to modifications to the hardware as well as the configuration. I would be interested in your opinions on this.

Requirements
-Data storage for family
-Docker container (wikijs, homeassistant)
-Virtual machines (Win 11, rarely used)

Current setup
Mainboard: Supermicro X11SSL-F
CPU: Intel Pentium G4600T
LAN: 10 Gbit/s Fiber (Intel 82599ES 10-Gigabit SFI/SFP+)...

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ACME account registration timeout

March 11, 2025, 3:00 am

≫ Next: How to discover or monitor from where is the PMG blocking relay attemps thanks to the outgoing spam rule is actually setted to a spam score 5?

≪ Previous: Homeserver Raid setup

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When trying to establish a lets encrypt cert i get a connection error - timeout when attempting to register for a lets encrypt or lest encrypt staging account on there of the directory's.

I've done some searching but cant find any suggested fixes.

m

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How to discover or monitor from where is the PMG blocking relay attemps thanks to the outgoing spam rule is actually setted to a spam score 5?

March 11, 2025, 3:02 am

≫ Next: Storage Livemigration

≪ Previous: ACME account registration timeout

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Hi PMG community

All days and at regular interval times the perimeter PMG functioning for our email system is blocking all the attemps in which an anonymous sender is trying to relay email from our domain to even valid email destination domains, I share you one of the notification emails to depict the case:


Is this a normal pattern? or Is it derived from a PMG's misconfiguration? the most part of the time I'm wondering about this.

I keep in pending, have a good day.

Attn...

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Storage Livemigration

March 11, 2025, 3:05 am

≫ Next: Proxmox installation stuck on "Welcome to GRUB!"

≪ Previous: How to discover or monitor from where is the PMG blocking relay attemps thanks to the outgoing spam rule is actually setted to a spam score 5?

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Is it possible to migrate the disks of a VM online from an NFS volume to a CephFS volume? I know that a live migration from ZFS to lvm-thin and again return works.

Proxmox installation stuck on "Welcome to GRUB!"

March 11, 2025, 3:06 am

≫ Next: User Filter in LDAP only working for the first group

≪ Previous: Storage Livemigration

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Hi,
Estoy instalando proxmox en un "IBM System X3550 M4" pero al conectar el USB con el ISO de proxmox 8 cargado y arrancarlo en el servidor se queda una pantalla en negro con el mensaje "Welcome to GRUB!" Lo ha arrancado en UEFI mode y no hay manera de iniciar la instalación.
Alguien sabría decirme como solucionarlo?
Muchas gracias.

User Filter in LDAP only working for the first group

March 11, 2025, 3:08 am

≫ Next: Import from vmWare by non-admin user fails with '403' Permission error

≪ Previous: Proxmox installation stuck on "Welcome to GRUB!"

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We have successfully created an LDAPS connection. The following filters are used for users and groups:

User Filter:
(|(MemberOf=CN=IT_Proxmox_Admins,OU=Administrative_Groups,OU=Groups,OU=Site,OU=XY,DC=domain,DC=tld)(CN=IT_Proxmox_Users,OU=Administrative_Groups,OU=Groups,OU=site,OU=Site,DC=domain,DC=tld)))

Group Filter:
(|(sAMAccountName=IT_Proxmox_Admins)(sAMAccountName=IT_Proxmox_Users))

When syncing, both groups are displayed in ProxMox, but only the list of users in the first user...

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Import from vmWare by non-admin user fails with '403' Permission error

March 11, 2025, 3:08 am

≫ Next: Dell PowerEdge R6615 fans revving up and down constantly

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Hello,

when I use my own superuser account to perform a vmWare import via Wizard, this works fine.

Another user, having access to a resource pool, network, storage as required to create VMs, gets an error

Code:

403

permission denied after clicking "Import" in the import window.

I am guessing this has to do with the fact that the VMs are not put in a resource pool - and I don't see a way to select one in the wizard.

Any ideas?