Fix USB backup permission issues
**Problem:** - USB drives mounted as root were not writable by regular user - Caused "Permission denied" errors on backup - Required running application as root (not secure) **Solution:** - Better permission error messages with fix suggestions - Try to create backup directory first (more flexible) - Show helpful error: "run sudo chown -R \$USER /media/usb0" **USB Setup Script (setup_usb.sh):** - Interactive USB drive mounting - Automatically detects USB devices - Mounts with user ownership (uid/gid) - Tests write permissions - Shows free space - Offers to add to /etc/fstab - Color-coded output **Documentation Updates:** - Added 3 methods for mounting with permissions - Recommended method: mount with uid/gid options - Added fstab auto-mount example - Added quick setup script example - Clear instructions for each method **Usage:** ```bash # Easiest method sudo ./setup_usb.sh # Or manual mounting sudo mount -o uid=$(id -u),gid=$(id -g) /dev/sda1 /media/usb0 # Or fix existing mount sudo chown -R $USER /media/usb0 ``` **Security:** - No need to run wedding phone as root - User-owned USB mount points - Proper permission checking - Clear error messages **Web Interface:** - Shows helpful permission error messages - Includes fix command in error text - Better UX for permission issues 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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setup_usb.sh
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141
setup_usb.sh
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#!/bin/bash
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#
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# USB Drive Setup Script
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# Mounts USB drives with proper user permissions for wedding phone backups
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#
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set -e
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m' # No Color
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echo "=========================================="
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echo "USB Drive Setup for Wedding Phone"
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echo "=========================================="
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echo ""
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# Check if running as root
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if [ "$EUID" -ne 0 ]; then
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echo -e "${RED}This script needs sudo privileges${NC}"
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echo "Please run with: sudo ./setup_usb.sh"
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exit 1
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fi
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# Get the real user (not root when using sudo)
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REAL_USER=${SUDO_USER:-$USER}
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REAL_UID=$(id -u $REAL_USER)
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REAL_GID=$(id -g $REAL_USER)
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echo "Setting up USB mounts for user: $REAL_USER (UID:$REAL_UID, GID:$REAL_GID)"
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echo ""
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# Create mount points
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echo "Creating mount points..."
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mkdir -p /media/usb0 /media/usb1
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echo -e "${GREEN}✓ Mount points created${NC}"
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echo ""
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# Detect USB devices
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echo "Detecting USB devices..."
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lsblk -o NAME,SIZE,TYPE,MOUNTPOINT,FSTYPE | grep -E "disk|part"
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echo ""
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# Function to mount a USB drive
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mount_usb() {
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local device=$1
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local mount_point=$2
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if [ ! -b "$device" ]; then
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echo -e "${YELLOW}⚠ Device $device not found, skipping${NC}"
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return
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fi
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# Unmount if already mounted
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if mountpoint -q "$mount_point"; then
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echo "Unmounting existing mount at $mount_point..."
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umount "$mount_point" 2>/dev/null || true
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fi
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echo "Mounting $device to $mount_point..."
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mount -o uid=$REAL_UID,gid=$REAL_GID "$device" "$mount_point"
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if [ $? -eq 0 ]; then
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echo -e "${GREEN}✓ Mounted $device${NC}"
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# Test write permissions
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if sudo -u $REAL_USER touch "$mount_point/.test" 2>/dev/null; then
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sudo -u $REAL_USER rm "$mount_point/.test"
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echo -e "${GREEN}✓ Write test successful${NC}"
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else
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echo -e "${RED}✗ Write test failed${NC}"
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fi
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# Show available space
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df -h "$mount_point" | tail -n 1 | awk '{print " Free space: " $4}'
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else
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echo -e "${RED}✗ Failed to mount $device${NC}"
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fi
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echo ""
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}
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# Prompt for devices
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echo "Enter device paths or press Enter to skip"
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echo ""
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read -p "USB 0 device (e.g., /dev/sda1) [Enter to skip]: " USB0_DEVICE
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if [ ! -z "$USB0_DEVICE" ]; then
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mount_usb "$USB0_DEVICE" "/media/usb0"
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fi
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read -p "USB 1 device (e.g., /dev/sdb1) [Enter to skip]: " USB1_DEVICE
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if [ ! -z "$USB1_DEVICE" ]; then
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mount_usb "$USB1_DEVICE" "/media/usb1"
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fi
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# Summary
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echo "=========================================="
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echo "Mount Summary"
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echo "=========================================="
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ls -la /media/usb0 /media/usb1 2>/dev/null | grep -E "^d|^total" || echo "No mounts found"
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echo ""
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# Offer to add to fstab
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read -p "Add these mounts to /etc/fstab for automatic mounting? (y/n) " -n 1 -r
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echo ""
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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echo ""
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echo "Add the following lines to /etc/fstab:"
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echo ""
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if [ ! -z "$USB0_DEVICE" ]; then
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UUID0=$(blkid -s UUID -o value "$USB0_DEVICE")
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if [ ! -z "$UUID0" ]; then
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echo "UUID=$UUID0 /media/usb0 vfat defaults,nofail,uid=$REAL_UID,gid=$REAL_GID 0 0"
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fi
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fi
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if [ ! -z "$USB1_DEVICE" ]; then
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UUID1=$(blkid -s UUID -o value "$USB1_DEVICE")
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if [ ! -z "$UUID1" ]; then
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echo "UUID=$UUID1 /media/usb1 vfat defaults,nofail,uid=$REAL_UID,gid=$REAL_GID 0 0"
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fi
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fi
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echo ""
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echo "To add automatically, run:"
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echo " sudo nano /etc/fstab"
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fi
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echo ""
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echo "=========================================="
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echo "Setup Complete!"
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echo "=========================================="
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echo ""
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echo "USB drives are now accessible by user: $REAL_USER"
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echo "Wedding Phone can now backup to these drives"
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echo ""
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