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    Tips for diagnosing the cause of a host reboot?

    I have a 3-node cluster, and had a random reboot today. I went back in syslog, and the reboot was logged, but I wasn't sure if this was a logged event BEFORE the reboot, or AFTER. I want to figure out why this is happening so I can stop it. I think this is the second random reboot this week...
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    Live migration for guests on hosts of different CPU classes?

    All 3 nodes are "Linux 6.8.12-2-pve (2024-09-05T10:03Z)" Can you expand a bit, are you suggesting it could be a kernel issue with an up-to-date kernel and I need to potentially downgrade the kernel? I don't have a target kernel version that is known good since I installed node3 with the new...
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    Live migration for guests on hosts of different CPU classes?

    I'm modernizing my environment and replacing some pretty old R710's with Intel(R) Xeon(R) X5687 CPU's with R6525's AMD EPYC 7252 CPU's. My VM's have all been set with the CPU type x86-64-v2-AES (v2 being the highest level my old Westmere CPUs support). When I live migrate between the old and...
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    Extending an iSCSI disk on an Ubuntu VM causes the disk to go read-only?

    Unfortunately, there are no logs. The host sees the disk extend as successful, and the VM stops recording all syslog at the time the extend initiates until after reboot.
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    Extending an iSCSI disk on an Ubuntu VM causes the disk to go read-only?

    I am wondering if I'm doing something wrong here. I have 2 Proxmox 8.2.2 hosts, and they are connected to a TrueNAS Scale which is presenting ZFS over iSCSI LUNS over fiber, everything works well. I have Ubuntu 22.04.04 VM's, with qemu-guest-agent installed, everything seems happy, until I...
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    Request for Consideration: New Support Tier

    Yea, this was meant with good intentions, I'm asking if there is a way to create a price tier which does let me help the project without getting any additional benefit or removing any existing tiers. Ultimately the nag will go away, but if there's a way for me to do that and also find a new...
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    Request for Consideration: New Support Tier

    I'm a homelab Proxmox user. I have 2 physical servers with Proxmox on them, each with 2 physical sockets. I'm not using a subscription, but that's fine, I don't need the enterprise repository, I don't need the support.... ...Except for the nag. The nag is super effective, I feel bad. I want...
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    Removing erroneously created disks?

    That did it, from truenas' web UI I just deleted the datasets for the VM and nothing bad happened. When it was clear I migrated the storage over which is how I wanted it, and it all went fine.
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    Removing erroneously created disks?

    Curious, when doing that i get this: root@sr66-prox-02:~# qm disk rescan rescan volumes... Could not find lu_name for zvol vm-117-disk-0 at /usr/share/perl5/PVE/Storage/ZFSPlugin.pm line 118. I still can't remove it from the LUN's GUI, and the extra disks don't show in the hardware UI for the VM.
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    Removing erroneously created disks?

    I recently set up ZFS over Iscsi on my truenas using a new 10G fiber network. While setting it up I had a few failures (binding the iscsi to the right nics on the TrueNAS, etc). The result was I tried to move a disk, but the move failed with an error. it's all since been resolved. In doing...
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    Locked myself out of networking following upgrade from 7->8, do I have options other than reimaging?

    I had an install of proxmox 7 that heavily utilized open-vswitch. Upon upgrade to proxmox 8, I lost networking in the middle of the install as I believe openvswitch was being upgraded. I was able to get in via the idrac console, and the system is up and survives a reboot, but my networking is...
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    Open-vswitch troubleshooting, having trouble getting cluster-communication vlan traffic working.

    I am setting up a 2-node proxmox cluster. These are connected to my switch via a 4-port LACP bond carrying multiple vlans each of which have a /16 subnet. Vlan 2 (subnet 10.2.0.0/16) is routable and is my management network, I can get to the web interfaces on this vlan and all is well. I have...
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    Help understanding best practice of monitoring Linux guest memory on proxmox

    Yea I'm monitoring both, but the question really is should I just disable the trigger prototype in the template. I think that's the move. Thanks!
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    Help understanding best practice of monitoring Linux guest memory on proxmox

    I'm using a completely up to date proxmox install and monitoring my Ubuntu VM's using an up to date zabbix. I have noticed a large discrepancy in the memory usage reported in proxmox vs. the memory usage reported by the vm. This makes sense; from the hypervisor side, this is a ballooning...
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    Proxmox VE and ZFS over iSCSI on TrueNAS Scale: My steps to make it work.

    Does this help? Make sure the API in truenas is bound to the correct interface: https://github.com/TheGrandWazoo/freenas-proxmox/issues/44
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    Proxmox VE and ZFS over iSCSI on TrueNAS Scale: My steps to make it work.

    Dunno, I'm not using LXC. All I know is my vm is happily running backed by the zfs datastore on truenas over iscsi:
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    Proxmox VE and ZFS over iSCSI on TrueNAS Scale: My steps to make it work.

    I found a lot of searching and testing with people struggling on this, but I was able to make this work. I wanted to document my exact steps in the hope it helps someone else. I have a VM povisioned, working, with snapshots and migrations. First, on TrueNAS Scale, I have a ZFS dataset with a...
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    Install help, PVE 7.2-1 from USB, "FATAL ERROR:writer: failed to read/uncompress file /target/usr/sbin/cgdisk"

    Maybe, I checksummed it and it looked good. My initial theory was that based on the error it was trying to pull something off a hard-coded CD-ROM path, so by making that available it could complete that step and continue as expected. That's why I tried it but I have no idea if that was an...
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    Install help, PVE 7.2-1 from USB, "FATAL ERROR:writer: failed to read/uncompress file /target/usr/sbin/cgdisk"

    This is kind of insane but I found a workaround. I burned a copy of the DVD, put it in the drive, booted off the USB, and it installed fine first try.
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    Install help, PVE 7.2-1 from USB, "FATAL ERROR:writer: failed to read/uncompress file /target/usr/sbin/cgdisk"

    I'm installing PVE 7.2-1 on a Dell Poweredge R710 from a USB key. I'm attempting to set up a BTRFS RAID1 on 2 drives as the OS, and I have 6 other drives which will be a RAIDZ-2. When attempting to install, I get the following error: "FATAL ERROR:writer: failed to read/uncompress file...