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When the documentation says that Proxmox VE "X" supports Debian "Y", what it exactly refers to? I suppose it means that Proxmox is based on that Debian version, and also that containers can run that Debian version. But what about VMs? Can an old release of Proxmox run a VM on which a recent...

I have some proxmox containers running Debian 10, on a machine with PVE 6.4. Now I need to upgrade those to Debian 11 and then 12 (because I need certain recent packages). Can I do it with PVE 6.4? I ask because I know containers use the host's kernel, so I am not sure how this works. Or...

I am using PBS to backup to tape. I have enabled encryption. Two questions: 1. I am not 100% sure that I have written down my password exactly. My backup server is still in good health, so I suppose I have the keys in /etc/proxmox-backup. Is there a way to retrieve the password, or at least to...

Before PBS, I managed my tape backups manually using a ladder schedule, for example: Do a daily backup Keep the last 7 days. Every 7 days, move the backup to the "weekly" category Keep the last 4 weeklies. Every 4 weeks, move the backup to the "monthly" category Keep the monthlies indefinitely...

I run tape backups without a fixed schedule; my datasets are rather small, so a single tape can contain several. (I have a simple drive, no library or tape changer). Since I have no fixed schedule, I set continue as my media set allocation policy. The idea is to trigger manually a new set...

Today, I started my Proxmox Backup server, and grub fails to boot. The server is a repurposed old machine with two 4TB HDD with ZFS RAID 1. This kind of failure happened to me in the past with PVE, when I was trying to have ZFS disks connected to a Dell PERC controller (an unhealthy idea that...

I have a single machine with proxmox on ZFS with a single pool containing a three-disk mirror. Backups aside, I would like to implement a simple disaster recovery strategy. The idea is to save the partition scheme of the disks on removeble media, and then dump the pool to LTO tape, so to be able...

I have a proxmox installation with two bootable disks in a ZFS mirror (set up from the Proxmox installer): sda, sdb. I have removed a faulted disk ("zfs detach rpool sdb2") and now I want to replace with a new one. I understand that I have to use the "zfs attach" command. However, with which...

Ok, maybe this is a stupid question, but I was wondering... pve-zsync syncs a snapshot of the zvol containing the VM virtual disk. But since this is done while the VM is running (unlike what vzdump does), isn't it possible that the guest filesystem is "frozen" while it is in some inconsistent...

In a system with a single guest running (Ubuntu 16), I have the whole host system (proxmox) suddenly rebooting when the guest performs a local backup with rsync. The host is Proxmox with kernel 4.15.18-14-pve; it has two disks with ZFS RAID 1. Apparently nothing unusual is in the host logs, so...

Hello, is it possible to use pve-zsync on two different hosts to backup the same (third) machine? i.e. like this: - pve-zsync on host B fetches a backup of VM101 from host A - pve-zsync on host C also fetches a backup of VM101 from host A ? Thanks

I have received the following mysterious error message in a mail sent by the pve-zsync cron. What does it mean? COMMAND: ssh root@10.0.0.4 -- qm config 501 GET ERROR: 400 Result verification failed lock: value 'snapshot-delete' does not have a value in the enumeration 'migrate, backup...

After having experienced several horrendous filesystem corruptions at boot with Proxmox & ZFS on Dell Poweredge R220, despite having set the PERC RAID controller to passthrough, I have now moved the hard disks to the motherboard SATA ports, abandoning the PERC controller completely (believing it...

I have "server1" (10.0.0.1) backing up VM 502 on "server2" (10.0.0.2) with pve-zsync. I set up the process with: server1# pve-zsync create --source 10.0.0.2:502 --dest rpool/pve-zsync/daily --verbose --maxsnap 7 --name server2-backup-daily eventually, server1 blows up and I have to completely...

I have just upgraded (apt-get upgrade) two machines to kernel 4.15.18-1-pve, then rebooted them. One, a Dell Poweredge R210 II, went flawlessly. The other, a Dell Poweredge R220, does not boot anymore, it ends in the grub rescue shell. Both are configured with the disk controller set to...