This is a generic to be edited as may be desired.
My initial backup of the entire system, including virtual machines and the proxmox system itself all fitted easily onto a 64 GB USB stick: to my surprise.
Proxmox VM Backup Script
This Bash script creates backups of selected VMs on your Proxmox VE host using vzdump.
Features
- Selective VM backup
- Gzip compression
- Daily timestamped folders
- Logs actions to file
Script
```bash
!/bin/bash
Configuration
BACKUP_DIR=“/mnt/backup/proxmox”
LOG_FILE=“/var/log/proxmox_backup.log”
DATE=$(date +%F)
VM_IDS=(“100” “110” “120”) # Add your VM IDs here
mkdir -p “[latex]BACKUP_DIR/[/latex]DATE”
echo “=== Starting Proxmox Backup: [latex]DATE ===” >> “[/latex]LOG_FILE”
for VMID in “${VM_IDS[@]}”; do
echo “Backing up VM [latex]VMID…” | tee -a “[/latex]LOG_FILE”
vzdump $VMID \
--mode snapshot \
--compress gzip \
--dumpdir "$BACKUP_DIR/$DATE" \
--mailnotification always \
--mailto root@localhost \
>> "$LOG_FILE" 2>&1done
echo “=== Backup Completed: [latex]DATE ===” >> “[/latex]LOG_FILE”
Usage
• Save the script as /usr/local/bin/proxmox_backup.sh
• Make it executable:chmod +x /usr/local/bin/proxmox_backup.sh
• Schedule with cron (crontab -e):0 2 * * * /usr/local/bin/proxmox_backup.sh
Notes
• Make sure the target BACKUP_DIR has sufficient space.
• You can change the backup mode from snapshot to stop or suspend if needed.