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  1. mattlach

    Hostname Change

    Hey Everyone, I set up my first Proxmox server a decade ago, and when I did so, I somewhat naively named the hostname "proxmox". For obvious reasons this is not ideal. I upgraded it in place for several years until my recent server rebuild when I decided it was time for a fresh install. I...
  2. mattlach

    Best Practices for Backup and Reinstall of Working Environment?

    Hi Everyone, I have a 7.4-3 Proxmox standalone server I have been putting off updating, as I am about to get a new server, and when I do I intend to do a clean install anyway. I use a mix of KVM and LXC, and all of my datastores use ZFS. Are there any guides and/or best practices on how to...
  3. mattlach

    Additional Questions Re: "ZFS: Switch Legacy-Boot to Proxmox Boot Tool"

    Hi Everyone, I have a few questions regarding the need to switch to Proxmox Boot Tool for booting from ZFS. I found the need to do this in reading the release notes for PVE 7.x in preparing for my upgrade from 6.4.9. Question 1.) It says the boot will break if I run zpool upgrade on the...
  4. mattlach

    Migrate Host ZFS Boot "rpool" from MBR to UEFI booting?

    Hey all, I run a standalone Proxmox server which I have been upgrading in place for years. I am currently on 6.x, not having upgraded to 7 yet. It was a clean install on Proxmox 4.2 I believe. When i initially installed it, I set it up to boot from a ZFS mirror of two SATA SSD's using...
  5. mattlach

    DMESG Inundated with Apparmor errors

    Hey all, I'm not very good with how Apparmor works, so I was hoping someone might help me solve this one. Two of my many LXC containers, ID 110 and ID 170 are resulting in an absolute spamming of DMESG as follows: Please see this pastebin. It was too much to post in a message here. Two...
  6. mattlach

    [SOLVED] NIC Upgrade and /etc/udev/rules.d/70-persistent-net.rules

    Hey all, I have been running a somewhat complex network setup on my server for some time: 2x Copper Gigabit Ethernet on Server Board 4x Copper Gigabit Ethernet (Intel 4x PRO/1000 NIC) 1x 10GBaseT Intel 82598EB I'm not going to go into the details of what they are used for, as it is not...
  7. mattlach

    Create a Fresh Container On Top of Existing One

    Hey all, Quick question. I have an existing very complicated container, with lots of interfaces and mounts. It's running on Ubuntu 14.04 LTS which is about to go EOL. I have tried ZFS snapshotting the existing containers rpool/subvol-110-disk-1 location and doing an in place upgrade but it...
  8. mattlach

    Network Configuration for LXC Containers

    Hey all, So, I know you configure the network interfaces for new containers in the web interface (or by editing the corresponding config file in /etc/pve/lxc) but how does it work when you actually power up the container? The reason I ask is, I have a bunch of Ubuntu 14.04 based containers...
  9. mattlach

    In Place Upgrade of Ubuntu 14.04 LXC Container to 18.04?

    Hi all, Is this advisable? The reason I ask is, I'm not sure I fully understand how the PVE frontend configures the containers network and other settings. 14.04 and 16.04 use ifup/down and are thus configured in /etc/network/interfaces, but 18.04 replaces ifup/down with netplan, which is...
  10. mattlach

    Replace Contents of Container?

    Hey all, I have a quick question. I have a container with a rather complex configuration with many mounted folders, and several Ethernet devices. I'd like the keep the container as is, but replace the template it is running off of with a different distribution. Is this possible? I was...
  11. mattlach

    smartctl not executed in cron @reboot

    Hey all, I have a ZFS pool in my proxmox box consisting of Seagate Enterprise drives. They accept the smartctl -l scterc command to set the error recovery timeout, but unfortunately for some reason it is not persistent after reboot. While reboots are infrequent, I don't want to forget to...
  12. mattlach

    Help! I'm Being Spammed with SMART Email Notifications!

    Hey all, First let me explain my setup. My Proxmox box boots off of a ZFS mirror of two 500GB SSD's. I also have a secondary ZFS pool consisting of 12 spinning disks, 2 SSD SLOG ZIL devices and 2 SSD L2ARC devices, which I use for data storage. I am in the middle of a slow project to one...
  13. mattlach

    Root on ZFS using /dev/sdX device names?

    Hey all, I installed Proxmox to a mirrored pair of SSD's quite a while ago. I noticed almost immediately that the resultant rpool used old fashioned linux device names: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 mirror-0 ONLINE 0 0...
  14. mattlach

    [SOLVED] NFS File System Mount Problem. Apparmor?

    Hi everyone, So I've had the following setup working for quite some time. 1.) ZFS pool on host shared via NFS to QEMU VM. 2.) QEMU VM mounts NFS share, reverse encrypts the file system using encfs and exports it via NFS to a Ubuntu Server LXC container. 3.) LXC container runs cloud backup...
  15. mattlach

    [SOLVED] Turnkey Linux OpenVPN template issues?

    Hey all, Can anyone help me troubleshoot this? I downloaded the turnkey linux openvpn template from the PVE web interface and installed it into a new LXC container. I believe I set it up as a host correctly using the first time configuration in the console, and my port forward rule for port...
  16. mattlach

    Sharing symlinks between LXC containers?

    Hey all, I'm having a little bit of difficulty getting something to work the way I need it to. I have two containers. Let's call them LXC1 and LXC2. LXC1 runs a software that creates files I need to access in LXC2. LXC1 writes these files to a folder on the host. The problem is, that the...
  17. mattlach

    NFS4 Multipathing and LACP How To?

    Hey all, I often use my workstation to transfer large amounts of data to and from my Proxmox server, and anything I can do to speed it up would greatly help me. My workstation runs Linux Mint 18, with two intel NIC's bonded in 802.3ad mode with my Procurve switch. My Proxmox server has the...
  18. mattlach

    Put LXC Conatiner interface in promiscuous mode?

    Hey all, I am trying to run ntopng in an LXC container, but no matter how I try My setup router -> Switch -> everything else. Using the switch I have mirrored the port connected to the router to another port. I ahve connected an Ethernet cable to this port, and connected ti to a dedicated...
  19. mattlach

    Promiscuous bridge for LXC Container?

    Hey all, I am trying to run ntopng in an Ubuntu 14.04LTS container on my Proxmosx host. I set up my switch (Procurve 1810G-24) to mirror both RX and TX of the port connected to my router, to a separate port on the switch. Then I connected a designated NIC (eth3) on my Proxmox box to that...
  20. mattlach

    [SOLVED] "Error: No space left on device"

    Hey all, I am having an odd problem I'm hopng someone might help me solve. I keep randomly getting "Error: No space left on device" error messages in console. Examples: # ifup vmbr3 Waiting for vmbr3 to get ready (MAXWAIT is 2 seconds). Error: No space left on device Error: No space left on...

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