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Questions tagged [proxmox]

Proxmox Virtual Environment is an AGPL licensed and debian-based Linux distribution with a strong focus on hosting virtual machine.

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43 views

Ejabberd Victim of Systemd Security Enhancements?

I can't get ejabberd to start on a Ubuntu 18.01 Server that's installed inside a Proxmox linux container. During install I get this error: I read a bug report that suggests that the problem has to ...
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1answer
124 views

DRBD comes up after reboot with Connected Diskless/Diskless

After an unattented power loss, facing a major issue, every reboot the DBRB comes up with Connected Diskless/Diskless status. main problems: dump-md response: Found meta data is "unclean" ...
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1answer
3k views

How to allow specific Proxmox LXC containers to mount NFS shares on the network?

This question is very similar to How to fix ”mount.nfs: access denied …“ when trying to mount a NFS share exported by a Proxmox 5 machine?. On a Proxmox LXC container I'm trying to mount a NFS share ...
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1answer
250 views

Wake on LAN a laptop when the lid is closed

I have an old laptop (Asus n56v) that I turned into a home lab by installing Proxmox hypervisor, it works well and also WOL (wake on LAN) work. I need to store it lid-closed because I only manage it ...
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1answer
188 views

16:9 aspect ratio on Windows KVM guest (specifically 1366x768)

I have a debian machine which I installed proxmox onto. I have been having trouble getting one of my guest machines (specifically a windows guest) to achieve a resolution of 1366x768. The solution in ...
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84 views

Debian \ Proxmox - VLAN over bonded NIC

What have I configured wrong? I'm trying to transmit and receive tagged VLAN packets over a bonded NIC (bond0). The following has been configured: auto lo eno1 eno2 bond0 bond0.22 bond0.44 vmbr0 ...
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184 views

Proxmox Guest: Network Device not linked

I've setup a new Ubuntu 18.04 virtual machine using Proxmox. On this new virtual machine I can't get a working Internet connection. The command lshw -C network shows: root@web:~# lshw -C network *-...
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358 views

Change the subnet on which a Ceph cluster lives

Is there a way to change the subnet ("cluster network") used for a Ceph cluster without having to basically rebuild it from scratch? The Ceph cluster lives on the same machines that make up a PVE HA ...
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3answers
4k views

Why do I get ”mount error(1): Operation not permitted“ on ”mount.cifs“ in a Proxmox LXC container?

I've set up a new Debian 9 (stretch) LXC container on a machine running Proxmox, and installed the cifs-utils package. I quickly tested the connection to the SMB server by running smbclient //192.168....
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2answers
8k views

How to fix ”mount.nfs: access denied …“ when trying to mount a NFS share exported by a Proxmox 5 machine?

I'm trying to mount an NFS share from a Proxmox 5 host and having issues. I have the following two machines: 192.168.1.3 proxmox debian box (nfs-host) 192.168.1.31 ubuntu 16.04 (nfs-client) ...
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545 views

NFS mount on LXC container

I have been testing NFS mounts on LXC containers and they work mostly ok after you have modified App-Armour settings on the host. Problems arise when the LXC containers are moved or host-node restarts....
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1answer
342 views

How can I extend LVM volume online

I would like to extend /dev/sda2 with the free space on /dev/sda without using a CD. fdisk -l output [root@ip126 ~]# fdisk -l Disk /dev/sda: 26.8 GB, 26843545600 bytes 64 heads, 32 sectors/track, ...
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1answer
2k views

Internet access from LXC containers in proxmox 5.1 on VirtualBox

I've installed a Proxmox VE 5.1 on a VirtualBox in macOS (10.12). The guess OS, Debian Strech (Proxmox is built on debian), has 2 "physical" network interfaces (configured from VirtualBox), Host-Only ...
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2answers
483 views

Format a raw image to XFS in Proxmox VE

I have a system with Proxmox VE 5.1 and a LXC container with Fedora 27. The container has 2 disk (raw format), the rootfs and an additional mount point, both of them are in ext4, I want to format to ...
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260 views

Automatic startup network interface in LXC container

I have a fedora 27 LXC container inside a proxmox VE 5.1 The network config is working fine, I've added a Linux Bridge using the subnet 172.27.1.0/24 and the container is "connected" to the network. ...
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1answer
508 views

NFS permissions across multiple LXC VM's

I recently changed my home server setup from a basic Ubuntu Server installation running everything to a virtualised environment. I am currently running ProxMox type 1 hypervisor, with several VM's. ...
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1answer
449 views

Reading iostat utilization with ZFS zvols

First off, I asked this question 5 days ago over on Serverfault. I hope I'm not doing a bad by bringing it over here to the Unix&Linux Stack. I have also asked this question on 3 other sites not ...
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1answer
597 views

docker socket: permission denied

I have home server with proxmox 5 installed and some services in docker containers. All was fine till yestarday. I rebooted the server and all services in all containers cannot bind socket because of ...
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1answer
862 views

pgadmin4 service won't start

I am not a sysadmin but since I can't afford paying one, I need to do the job myself ;-) I have a lxc container running on a proxmox4 box. proxmox4$ uname -a Linux dbd 4.4.98-2-pve #1 SMP PVE 4.4.98-...
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0answers
221 views

Proxmox hyper-convergence and storage redundancy

What kind of storage redundancy (data blocks at least on two different physical machines) does Proxmox Hyper-Convergence provide? Nutanix does it with a controller VM (CVM), VxRail with VMware vSAN ...
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1answer
442 views

“VFS: Can't find ext4 filesystem” on ZFS disk

I am getting many of these messages on one of my systems: [ 348.515157] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.517587] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.519944] ...
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2answers
1k views

High IO on KVM/LXC host will hang server but not on guest (Proxmox/Debian)

I have problem for past several months which was progressively getting worse and now I'm in state that if I try to do almost any intensive IO operation on my visualization host (Proxmox ve 5.1-41) ...
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0answers
603 views

Proxmox VE doesn't want to login using WUI interface

I have access to the proxmox VE server with SSH. But the WUI refuses to login (usingLinux PAM standard authentication realm). It doesn't show any error but just the infinite loading state. What step ...
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1answer
642 views

Unable to start NFS server on Alpine Linux LXC

I'm trying to setup a NFS server on an Alpine Linux LXC running on Proxmox by following the instructions as outlined here, but rpc.statd refuses to start. Here's an excerpt from /var/log/messages ...
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3answers
3k views

'dd' raw drives to lvm is inefficient. Is there a better way?

I have a proxmox installation. I'd like to import a vmdk to a lvm and the procedure is: $ qemu-img convert -p -f vmdk "IE11 - Win7-disk1.vmdk" -O raw "IE11 - Win7-disk1.raw" and then: $ dd if="IE11 ...
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2answers
2k views

Iptables can't forward from/to internal LAN with proxmox

I have an host with proxmox with single public ip and some virtual machine installed whit webservers and multiple doimains, the first VM is a proxy with haproxy that forward the request to other VM ...
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0answers
447 views

CentOs VM on Proxmox hangs when rebooting

I installed a VM under Proxmox 5.0.5 running CentOS 7 (Kernel 3.10.0-514.26.1.el7.x86_64). The virtual machine boots fine, but when performing a reboot (just the command 'reboot' from SSH), it never ...
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1answer
303 views

Public IPv6s fail on KVM bridge with “No buffer space available”

I've already asked this question on the #networking and #freebsd IRC channels on Freenode but nobody was able to answer my question and forwarded me over here as it seems this issue is kicky to solve. ...
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0answers
239 views

Mounting mergerfs directory with bind mount under lxc shows nothing unless root or 555 permissions

So I'm using proxmox and have a few hard drives mounted to /mnt/hdd1, /mnt/hdd2 etc I use mergerfs so that they all show up as one drive. I then use a bind mount so that I can access the dir when in ...
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1answer
400 views

LVM Volume Group MetaData Corruption - Please Help

I have a server that was set up using LVM. It ran for years just fine with out issue until about 10 days ago. When I tried to log into it, the server had crashed. When we look at the server using a ...
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1answer
324 views

OpenVZ acl support for Samba

Setting up Samba-4.3.5 as AD domain fileserver in OpenVZ container, running in ProxMox (pve-manager/3.4-6/102d4547 running kernel: 2.6.32-39-pve). Hardware node has enabled acl support for /var/lib/vz....
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1answer
785 views

Recover VM Images from dead ceph cluster

A few days ago our Ceph Cluster died - nobody knows why, but it seems that the monitors just got deleted. When trying to re-add them to the ceph.conf we get timeouts when starting ceph and these ...
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0answers
415 views

Dedicate one physcial port to one virtual port in proxmox without libvirt

I simply need to dedicate 1 host physical port to 1 virtual port of guest without help of libvirt. Host has: 2 physical interfaces: eth0 and eth1 1 virtual bridge(vmbr0), that include virtual ...
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0answers
277 views

Virtual Lab on a server. What hypervisor? Proxmox, OpenStack, ESXi?

I would like to run a virtual lab to show a piece of software - imagine 10 students, each using 3 VMs (somehow students shouldn't be able to touch each other's machines). It's going to be a small ...
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2answers
4k views

KVM package on CentOS 7 like ProXmoX

I've been using ProXmoX for a while as a KVM complete environment, which is based on Debian. Now I've got a server that I need to install KVM but it has to be on CentOS 7, is there any complete ...
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1answer
729 views

SELinux + MergerFS (fuse) not working well together

I have been trying now for several days to get my new server up and running. I am running CentOS with MergerFS to pool my drives and samba to host to my windows machines. All of this running in ...
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1answer
708 views

Proxmox hook for VMs

We have Proxmox installation. We want to execute a command after new VM was added. It is required for QEMU port redirection since setting redir option is not avaialble on GUI: qm set 102 -args "--...
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2answers
629 views

Configuring 2 NIC with 2 gateways

Lets say my router has a LAN (192.168.0.1/24) and a DMZ (192.168.1.1/24). My computer has 2 NICs, one for LAN and one for DMZ. How can I configure my routes so that it uses both gateways instead of a ...
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0answers
308 views

Replacement for auditd in OpenVZ

Are there any replacements for auditd to use in OpenVZ containers? ProxMox VE (pve-manager/3.4-6/102d4547 (running kernel: 2.6.32-39-pve)
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181 views

iptables Forward port range on dd-wrt for proxmox vnc

I am running proxmox on my LAN and DD-WRT for my router... I want to use cloudflare with proxmox, but cloud flare only allows these ports(https): 2087, 2096, 8443. But proxmox VNC ports are 5900-5999.....
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0answers
540 views

`yum install` on CentOS 7 states installed size of 578mb, then fails requiring 75+GB more space on /

I have ~10Gb available on /.After running yum install kolab on a new CentOS container yum states the following: Total size: 234 M Installed size: 578 M However, the install then fails with the error:...
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1answer
331 views

Proxmox OpenVZ /cluster/resources returning incomplete info

I have a few Proxmox nodes, yesterday, I upgraded them all to 3.4-11. Today I found one of the node is not showing OpenVZ node correctly in the Proxmox UI. Then I did a bit investigation and found ...
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0answers
1k views

Converting .vhd file to .raw - File is too small and does not boot

I have a Hyper-v .vhd file I am trying to convert to .raw for Proxmox. However every time I convert the size is less than half of the actual disk space used and when I import it doesn't boot. I ...
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1answer
4k views

Assigning static public IPs to Proxmox KVM guests

I'm currently using 5 public IPV4 addresses on a physical machine running Ubuntu Server, which I intend to replace with new hardware running Proxmox. I'll do a P2V of the current Ubuntu install into ...
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1answer
1k views

Can't login with the set password deployed by proxmox in CoreOS

I have tried to install CoreOS to my VM in proxmox, I have create a file cloud-config.yaml: #cloud-config hostname: coreos coreos: etcd: addr: $private_ipv4:4001 peer-addr: $...
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1answer
1k views

iptables ruleset causes server to stop answering

I'm trying to configure my proxmox server's firewal and redirections. The aim is to block everything, open the necessary ports for basic services to work and, finally, redirect some ports to virtual ...
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1answer
2k views

Proxmox shows “Login failed, please try again” when I apply my iptables rules

I've just got a powerful dedicated server, and I'd like to virtualize it. The idea is to install Proxmox VE on the host and then create a VM for each use: one for my website, one for mi Git repo, and ...
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451 views

Proxmox server VM growing than what i have assigned for VM disk space

I have only 2 VM's in one of the SSD hard disk server, Hard disk size was just 120 GB. I have assigned 32 GB for each VM's but now there is only 1 GB space left in /var/lib/vz. While listing the size ...