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  1. mattlach

    Replace Mirrored ZFS Boot Pool (rpool) with Smaller Devices

    Yeah, I am debating back and forth between this, or just doing a clean Proxmox install to my new smaller drives and copying over the content of /etc and /var/lib/pve-cluster/config.db. This was surprisingly easy the last time I upgraded my server and did a clean install, so I wonder if I am...
  2. mattlach

    Replace Mirrored ZFS Boot Pool (rpool) with Smaller Devices

    I just came across this guide which seems pretty close to my initial hair brained scheme: https://aaronlauterer.com/blog/2021/proxmox-ve-migrate-to-smaller-root-disks/ I think I am going to give it a try, without altering the existing boot drives, so I can always go back and try another method...
  3. mattlach

    Replace Mirrored ZFS Boot Pool (rpool) with Smaller Devices

    Now I know what you are all thinking. IT CAN'T BE DONE. ZFS only allows growing pools, not shrinking them. But bear with me here. Background: I boot this server off of two mirrored NVMe drives. I got a fantastic deal on a set of 500GB Samsung 980 Pro drives when I was rebuilding this...
  4. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    Possibly, but I still fault the kernel driver team behind the i40e driver, not Proxmox.
  5. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    That is true, But I don't think the 6.8 kernel came in as a new major/minor update of Proxmox. Just as a regular package update. So the node that has the i40e NIC in it had an uptime of 180+ days, and got several kernel updates through regular updates in that time. Didn't realize there...
  6. mattlach

    [SOLVED] Switch from Default ZFS Swap to dedicated swap drive?

    Hi, I just saw this post, and it is way too late to start typing a detailed howto guide. As someone previously in this post posted, if you mirror everything else, it is probably a good idea to mirror swap as well, but swap is not a good fit for ZFS, because you can create a race condition of...
  7. mattlach

    networking.service not starting since kernel 6.8.12-1-pve

    Do you by any chance have a NIC that depends on the i40e kernel driver? I just had this problem, posted in the forums and solved it with the help of another member. I figured I'd drop this here in case anyone else is searching for a solution and comes across this thread, and not one that has...
  8. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    That turned out to be the case. Each of my two network interfaces on this server: enp133s0f0 and enp133s0f1 were renamed to enp133s0f0np0 and enp133s0f1np1 respectively. This makes me a little frustrated at the part of the kernel team that is responsible for this driver. I hope they at least...
  9. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    Thank you for that. I will take a look at that. Seems mind boggling that they would mess with network interface names at this point. Almost as if we learned nothing from the transition away from eth0, eth1, eth2, etc. to consistent network naming - what- a decade ago now? More? I can't...
  10. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    Hi Everyone, So the Proxmox server got itself a reboot today for the first time in a while, and when it came back up, there was no network connectivity. The PCI device appeared in lspci, and the network device appeared in "ip link show". ifconfig showed only the vmbr networks, and they were in...
  11. mattlach

    [TUTORIAL] Proxmox storage - Host to VM folder passthrough with 9p

    Interesting stuff. Is this the same as virtiofs as I see in many guides being used with KVM with virt-manager or is it something completely different? Could a Windows guest use this 9p storage, or is it limited to Linux?
  12. mattlach

    [TUTORIAL] Enabling SR-IOV for Intel NIC (X550-T2) on Proxmox 6

    So apologies for asking what likely is a pretty silly question, but what would I use SR-IOV for? I have NIC's that support it, and I use them on Proxmox boxes using the default vmbr0 to hardware network interface bridge. Would I be better served by enabling SR-IOV and forwarding these virtual...
  13. mattlach

    [SOLVED] Problem with GPU Passthrough

    I've been bashing my head against a wall, failing to get this to work, and I just had an epiphany. I've been trying to pass through an old Quadro 2000 card. It's Fermi based. As I understand Fermi boards did not have UEFI support. I'm rolling my eyes at myself right now. I'm going to...
  14. mattlach

    Hostname Change

    So, I've gone looking in the /etc/pve folder and located both my hostnames there, with a bunch of files under them... What if, at the same time as I edit /etc/hosts and /etc/hostname, I also wipe out the old /etc/pve/omniverse, and rename /etc/pve/proxmox to /etc/pve/omniverse.... And then...
  15. 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...
  16. mattlach

    Best Practices for Backup and Reinstall of Working Environment?

    Do you know if Proxmox cares about the ZFS ID of the pool, or does it just look at the mountpoint? If I were to completely replace one of the pools, zfs send/recv the data from the old pool to the new pool and then give it the same mount location, would it work or would it complain that it...
  17. mattlach

    Best Practices for Backup and Reinstall of Working Environment?

    Thank you, appreciate the info! Yeah, I've been managing ZFS pools manually from the command line for over a decade, so that part I have figured out. I think what I will do is this: 1.) Back up all config files from old server 2.) Install fresh copy of Proxmox on new server 3.) Shut down...
  18. mattlach

    Best Practices for Backup and Reinstall of Working Environment?

    Thank you. I guess once I import the configs, I just need to make sure the ZFS volumes mount in the same place again, and it should "just work"? Or will I need to reimport storage volumes into the PVE system? I'm guessing those are configured in the config.db file as well, so I won't have...
  19. 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...
  20. mattlach

    proxmox on arm64

    That's interesting. I didn't think that would work, considering LXC shares the kernel with the host, and MacOS does not use a Linux kernel.

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