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  1. K

    upgrade from 7 to 8 hangs while importing rpool

    Hello.. I am upgrading a standalone server from proxmox 7.4 to 8. I followed the instructions and pve7to8 reported no issues. I've done multiple upgrades from 7 to 8 at work, but this is for a home system, and it's the first time it failed. After the reboot, the OS failed importing rpool...
  2. K

    ceph: cannot create monitor: monitor address 'xxx' already in use (500)

    Hello, I have a monitor node in our cluster that had an ungraceful reboot. After the node came up, the monitor could not join the cluster. After some retries I destroyed the monitor (from the GUI) and recreated it, but still could not join the cluster. I waited about a day "just in case" the...
  3. K

    Proxmox backup hangs pruning older backups

    Hello, I have a problem when backing up to a ceph cluster of spinning disks. I have a cluster of 27 server-class nodes with 60 OSDs on a 10gig network. If I backup ~10 VM/CTs it works fine. Upping that number to ~20 the backup grinds to a halt (write bandwidth in the KB/s range) but...
  4. K

    [SOLVED] backup failed for non-existing VM

    Hello Proxmox, I deleted 2 VMs from our cluster (that had backup jobs on them). Subsequent backup jobs fail on those VMs with "no log available", even though those VMs are not listed in the backup job. I'm getting an email from every single host in my cluster. How can I remove those VMs IDs...
  5. K

    how to install ceph influx module?

    Hello, I would like to enable influx data gathering for ceph. The ceph documentation that I found have instructions on how to enable it, but not how to install it; I can only assume that it installs by default. However, when I try to enable the influx ceph module in a Proxmox cluster, I get...
  6. K

    [SOLVED] updated Proxmox on one host, caused havoc in the cluster

    Hi there. We have 2 Proxmox clusters. I updated packages on one cluster with no problems. Then I started updating packages on the 2nd cluster, and after I upgraded the 1st node, the whole cluster went berserk. Initially, some of the nodes appeared up, some down, and some with a "?", even...
  7. K

    upgrade to kernel 5.13.19-4-pve problems

    Hello... I did a package upgrade yesterday 2/6/22 (including kernel update to 5.13.19-4-pve) and it's consistently hanging about 20-30 minutes after boot. Symptoms include: - unresponsive console, does not respond to Ctrl-Alt-Del or ACPI Shutdown. - "qm list" hanging. Some VMs hanging. LXC...
  8. K

    Inconsistent hostname sorting

    Hello Proxmox, I would like to request a feature which is very useful in large clusters. We have a cluster with 33 nodes and way too many containers to count by hand (about 100). In the Server View, nodes are sorted by hostname, while in the Pool View containers and VMs are listed by VM/CT...
  9. K

    root on zfs overlayfs issue with docker (RENAME_WHITEOUT)

    Hello, I have some LXC containers with docker running inside them. Those work well with root-on-ext4, with the required changes in the .conf files. When I do the same on root-on-zfs, I get the following messages in the console: overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs...
  10. K

    cluster with zfs and ext4 root

    I have a cluster with all nodes on ext4 root. I would like to add a few (new) nodes with zfs raid1 root. I found out that there are some issues, and I would like to know what's the best way to proceed: - The local-lvm storage shows up with a "?" on the machine with zfs root, which is...
  11. K

    zfs snapshotting and backups in lxc container?

    Hello, I am planning on using sanoid/syncoid or something similar to perform snapshots and backups of my zfs pool(s). I understand that I can add packages and/or do whatever I need in the host debian environment, but I was wondering if I can do the same inside an lxc container with the host...
  12. K

    Proxmox 7 install clobbers timesyncd conf file

    Hello, I am in the process of upgrading our cluster to Proxmox 7, and came across the following: We have locally edited /etc/systemd/timesyncd.conf to use a local NTP server, since our firewall does not allow external NTP connections. After upgrading to Proxmox 7, the above conf file edits are...
  13. K

    Proxmox 7 - lxc cgroup issue with docker

    Upgraded to Proxmox 7, installed has no problems (well, pending issue https://forum.proxmox.com/threads/unknown-video-mode-on-fresh-proxmox-7-install.92623/#post-403828, but that's a different story). We are running LXC containers with docker and gitlab-runner inside them. I modified the...
  14. K

    "Unknown video mode" on fresh Proxmox 7 install

    (for @t.lamprecht) Installed Proxmox 7 on two separate machines (one Haswell-based server platform [upgrade], and the one Broadwell-based server platform [new install]), both machines connected to a Raritan KVM with VGA dongle. Install was uneventful in both instances, boot up sequence shows...
  15. K

    [SOLVED] LXC container not cloning when mp mounts present

    Hello, I am trying to clone a container that has a mp0 mount point, but I'm getting an error "unable to clone mount point 'mp0' (type bind) (500)". Of course I can remove the mount, clone, and then re-add it, but it gets cumbersome after a while. Any particular reason why it is not allowed...
  16. K

    backup retention does not trim backups

    I've set up my cluster to do weekly backups and also set up backup retention to keep weekly 3 and keep monthly 3. However, /etc/pve/vzdump.cron does not have any entries for --prune-backups, as I would expect, and in fact the backups are not trimmed. How can I set proxmox to trim backups...
  17. K

    latest update (2/8/21) broke docker in container?

    Hello, yesterday I just upgraded packages and noticed that docker in my LXC containers stopped working. I found out that now /proc/sys is now mounted read-only inside the container, while previously it was mounted read-write. The errors I got in the container's syslog are: Feb 9 16:38:11...
  18. K

    cluster network setup

    Hello... I have a Proxmox cluster with about 20 nodes. I am running Ceph on it, but I only have OSDs on 4 nodes. I have, however, installed Ceph on all nodes. Currently (sadly) I am not using a cluster network, so all the Ceph balancing traffic goes to the public network. I'd like to add a...
  19. K

    cephfs mount inside LXC

    I was wondering if it's possible to mount a cephfs volume inside an LXC container. I have an ubuntu LXC container, installed ceph-common, and tried a mount, but it failed as shown below: root@vis-lxc-02:~# mount.ceph vis-mgmt-1:6789:/ /ceph modprobe: ERROR: ../libkmod/libkmod.c:586...
  20. K

    LXC with windows DHCP server - dhcp-identifier problem

    Hi, I'm on a corporate network that is running a windows DHCP server. During native Ubuntu 18 installs (no Proxmox, bare metal installs), I have to modify the Netplan config file /etc/netplan/01-netcfg.yaml to specify dhcp-identifier: mac to be able to have dhclient broadcast the MAC address...

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