Claude
06a163614d
Interactive script to mount network drives and persist them in /etc/fstab: - SMB/CIFS: prompts for share path, mount point, credentials (saved to /etc/samba/credentials.<name> at 600/root), SMB version - NFS: prompts for export path, mount point, NFS version - Tests the mount before writing fstab - Backs up /etc/fstab before any edit - Remove flow: unmounts, removes fstab entry, optionally removes creds file - Shows currently mounted network shares and fstab entries - Uses nofail + _netdev so a missing share doesn't block boot https://claude.ai/code/session_014CCYqVwW6d6f5dw1qRokYt
327 lines
12 KiB
Bash
327 lines
12 KiB
Bash
#!/usr/bin/env bash
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# mount-network-drive.sh — Mount a network share (SMB/CIFS or NFS) and add
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# it to /etc/fstab so it survives reboots.
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#
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# Usage:
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# sudo bash mount-network-drive.sh
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#
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# Supports:
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# - SMB/CIFS (Windows shares, Samba, NAS)
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# - NFS (Linux/NAS exports)
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set -euo pipefail
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# ── Helpers ───────────────────────────────────────────────────────────────────
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info() { printf '\033[0;34m[INFO]\033[0m %s\n' "$*"; }
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ok() { printf '\033[0;32m[OK]\033[0m %s\n' "$*"; }
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warn() { printf '\033[1;33m[WARN]\033[0m %s\n' "$*"; }
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err() { printf '\033[0;31m[ERROR]\033[0m %s\n' "$*" >&2; }
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[[ "$(id -u)" == "0" ]] || { err "Run with sudo: sudo bash $0"; exit 1; }
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# Actual user who invoked sudo
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ACTUAL_USER="${SUDO_USER:-$USER}"
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ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" | cut -d: -f6)"
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ACTUAL_UID="$(id -u "$ACTUAL_USER")"
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ACTUAL_GID="$(id -g "$ACTUAL_USER")"
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# ── Install packages ──────────────────────────────────────────────────────────
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ensure_packages() {
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local pkgs=()
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case "$1" in
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smb) command -v mount.cifs &>/dev/null || pkgs+=(cifs-utils) ;;
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nfs) command -v mount.nfs &>/dev/null || pkgs+=(nfs-common) ;;
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esac
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if [[ ${#pkgs[@]} -gt 0 ]]; then
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info "Installing: ${pkgs[*]}"
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apt-get install -y "${pkgs[@]}" -qq
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fi
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}
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# ── Already in fstab? ─────────────────────────────────────────────────────────
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fstab_has() {
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grep -qs "$1" /etc/fstab
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}
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# ── Show existing network mounts ──────────────────────────────────────────────
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show_existing() {
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local entries
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entries=$(grep -E 'cifs|nfs' /etc/fstab 2>/dev/null || true)
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if [[ -n "$entries" ]]; then
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info "Existing network mounts in /etc/fstab:"
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echo "$entries" | sed 's/^/ /'
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echo ""
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fi
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}
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# ── SMB/CIFS ──────────────────────────────────────────────────────────────────
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mount_smb() {
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ensure_packages smb
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echo ""
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echo " Enter the share details."
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echo " Format: //server/share (e.g. //192.168.1.10/media or //nas/homes)"
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echo ""
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local share=""
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while [[ -z "$share" ]]; do
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read -r -p " Share path (//server/share): " share
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done
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local default_mount
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default_mount="/mnt/$(echo "$share" | sed 's|//[^/]*/||; s|/|-|g')"
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local mount_point=""
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read -r -p " Mount point [$default_mount]: " mount_point
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mount_point="${mount_point:-$default_mount}"
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# Credentials
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echo ""
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local use_creds=""
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read -r -p " Does this share require a username/password? [Y/n]: " use_creds
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local creds_file="" creds_opt=""
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if [[ "${use_creds,,}" != "n" ]]; then
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local smb_user="" smb_pass="" smb_domain=""
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read -r -p " Username: " smb_user
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read -r -s -p " Password: " smb_pass; echo ""
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read -r -p " Domain (leave blank if none): " smb_domain
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# Store credentials file — root-owned, root-readable only
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creds_file="/etc/samba/credentials.$(echo "$share" | sed 's|[^a-zA-Z0-9]|_|g')"
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mkdir -p /etc/samba
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cat > "$creds_file" << CREDS
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username=${smb_user}
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password=${smb_pass}
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${smb_domain:+domain=${smb_domain}}
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CREDS
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chmod 600 "$creds_file"
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chown root:root "$creds_file"
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ok "Credentials saved to $creds_file (root-only, 600)"
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creds_opt="credentials=${creds_file}"
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else
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creds_opt="guest"
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fi
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# SMB version
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echo ""
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echo " SMB version (leave blank to let the system negotiate):"
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echo " 3.0 — modern NAS, Windows 2012+, Samba 4+"
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echo " 2.1 — older NAS, Windows 7/2008 R2"
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echo " 1.0 — legacy only (insecure, not recommended)"
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local smb_ver=""
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read -r -p " SMB version [auto]: " smb_ver
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local ver_opt=""
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[[ -n "$smb_ver" ]] && ver_opt=",vers=${smb_ver}"
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local opts="uid=${ACTUAL_UID},gid=${ACTUAL_GID},${creds_opt}${ver_opt},iocharset=utf8,nofail,_netdev"
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_do_mount "cifs" "$share" "$mount_point" "$opts"
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}
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# ── NFS ───────────────────────────────────────────────────────────────────────
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mount_nfs() {
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ensure_packages nfs
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echo ""
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echo " Format: server:/export (e.g. 192.168.1.10:/mnt/data or nas:/homes)"
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echo ""
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local share=""
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while [[ -z "$share" ]]; do
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read -r -p " NFS export (server:/path): " share
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done
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local default_mount
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default_mount="/mnt/$(echo "$share" | sed 's|[:/]|-|g; s|^-||')"
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local mount_point=""
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read -r -p " Mount point [$default_mount]: " mount_point
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mount_point="${mount_point:-$default_mount}"
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echo ""
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echo " NFS version:"
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echo " 4 — recommended (NFSv4, supports Kerberos, ACLs)"
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echo " 3 — older servers/NAS"
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local nfs_ver=""
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read -r -p " NFS version [4]: " nfs_ver
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nfs_ver="${nfs_ver:-4}"
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local opts="nfsvers=${nfs_ver},rw,soft,intr,nofail,_netdev"
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_do_mount "nfs" "$share" "$mount_point" "$opts"
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}
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# ── Common mount + fstab logic ────────────────────────────────────────────────
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_do_mount() {
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local fstype="$1" share="$2" mount_point="$3" opts="$4"
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# Create mount point
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if [[ ! -d "$mount_point" ]]; then
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mkdir -p "$mount_point"
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ok "Created mount point: $mount_point"
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fi
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# Test mount
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echo ""
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info "Testing mount..."
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if mount -t "$fstype" -o "$opts" "$share" "$mount_point"; then
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ok "Mounted successfully at $mount_point"
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else
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err "Mount failed. Check the share path, credentials, and network connectivity."
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rmdir "$mount_point" 2>/dev/null || true
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return 1
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fi
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# Show what's there
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echo ""
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info "Contents of $mount_point:"
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ls "$mount_point" | head -20 | sed 's/^/ /' || true
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echo ""
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# fstab
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local add_fstab=""
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read -r -p " Add to /etc/fstab so it mounts on boot? [Y/n]: " add_fstab
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if [[ "${add_fstab,,}" != "n" ]]; then
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if fstab_has "$mount_point"; then
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warn "$mount_point already in /etc/fstab — skipping."
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else
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# Backup fstab
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local bk="/etc/fstab.backup.$(date +%Y%m%d-%H%M%S)"
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cp /etc/fstab "$bk"
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info "Backed up /etc/fstab → $bk"
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printf '\n# %s — added by mount-network-drive.sh %s\n' \
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"$share" "$(date +%Y-%m-%d)" >> /etc/fstab
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printf '%-40s %-25s %-6s %s 0 0\n' \
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"$share" "$mount_point" "$fstype" "$opts" >> /etc/fstab
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ok "Added to /etc/fstab"
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info "Verify with: sudo mount -a"
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fi
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fi
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# Ownership hint
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echo ""
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info "To make this drive writable by $ACTUAL_USER:"
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echo " sudo chown -R ${ACTUAL_USER}:${ACTUAL_USER} $mount_point"
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echo ""
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ok "Done. $share is mounted at $mount_point"
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}
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# ── Remove a mount ────────────────────────────────────────────────────────────
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remove_mount() {
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echo ""
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local entries=()
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while IFS= read -r line; do
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[[ -z "$line" || "$line" == \#* ]] && continue
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entries+=("$line")
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done < <(grep -E '\bcifs\b|\bnfs\b' /etc/fstab 2>/dev/null || true)
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if [[ ${#entries[@]} -eq 0 ]]; then
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warn "No network mounts found in /etc/fstab."
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return 0
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fi
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echo " Network mounts in /etc/fstab:"
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echo ""
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local i=1
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for e in "${entries[@]}"; do
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local mp; mp=$(echo "$e" | awk '{print $2}')
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local src; src=$(echo "$e" | awk '{print $1}')
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printf " %2d) %-30s %s\n" "$i" "$src" "$mp"
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i=$(( i + 1 ))
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done
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echo ""
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local choice=""
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read -r -p " Remove entry number [cancel]: " choice
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[[ -z "$choice" || ! "$choice" =~ ^[0-9]+$ ]] && { info "Cancelled."; return 0; }
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local idx=$(( choice - 1 ))
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[[ "$idx" -lt 0 || "$idx" -ge ${#entries[@]} ]] && { warn "Invalid selection."; return 0; }
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local target_entry="${entries[$idx]}"
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local target_mp; target_mp=$(echo "$target_entry" | awk '{print $2}')
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local target_src; target_src=$(echo "$target_entry" | awk '{print $1}')
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warn "Will unmount $target_mp and remove from /etc/fstab."
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local confirm=""
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read -r -p " Confirm? [y/N]: " confirm
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[[ "${confirm,,}" == "y" ]] || { info "Cancelled."; return 0; }
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# Unmount
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if mountpoint -q "$target_mp" 2>/dev/null; then
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umount "$target_mp" && ok "Unmounted $target_mp" || warn "umount failed — may still be in use"
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fi
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# Remove from fstab (match the mount point field)
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local bk="/etc/fstab.backup.$(date +%Y%m%d-%H%M%S)"
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cp /etc/fstab "$bk"
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info "Backed up /etc/fstab → $bk"
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# Remove the entry line and its preceding comment if added by this script
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sed -i "\|${target_src}|d" /etc/fstab
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sed -i "\|# ${target_src} — added by mount-network-drive.sh|d" /etc/fstab
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ok "Removed from /etc/fstab"
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# Remove credentials file if it exists
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local creds_file
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creds_file="/etc/samba/credentials.$(echo "$target_src" | sed 's|[^a-zA-Z0-9]|_|g')"
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if [[ -f "$creds_file" ]]; then
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local rm_creds=""
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read -r -p " Remove credentials file $creds_file? [Y/n]: " rm_creds
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[[ "${rm_creds,,}" != "n" ]] && rm -f "$creds_file" && ok "Removed $creds_file"
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fi
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}
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# ── Show current mounts ───────────────────────────────────────────────────────
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show_mounts() {
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echo ""
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echo " Currently mounted network shares:"
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echo ""
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mount | grep -E 'type (cifs|nfs)' | awk '{print " " $1 " → " $3}' || echo " (none)"
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echo ""
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echo " /etc/fstab network entries:"
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echo ""
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grep -E '\bcifs\b|\bnfs\b' /etc/fstab | sed 's/^/ /' || echo " (none)"
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echo ""
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}
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# ── Main ──────────────────────────────────────────────────────────────────────
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main() {
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echo ""
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echo "┌──────────────────────────────────────────────────────────┐"
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echo "│ Network Drive Mount Manager │"
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echo "│ SMB/CIFS (Windows/Samba) and NFS shares │"
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echo "└──────────────────────────────────────────────────────────┘"
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echo ""
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show_existing
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while true; do
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echo " What would you like to do?"
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echo " 1) Mount an SMB/CIFS share (Windows, Samba, NAS)"
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echo " 2) Mount an NFS share"
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echo " 3) Show current network mounts"
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echo " 4) Remove a mount"
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echo " 0) Quit"
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echo ""
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read -r -p " Choice [1]: " action
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action="${action:-1}"
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echo ""
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case "$action" in
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1) mount_smb ;;
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2) mount_nfs ;;
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3) show_mounts ;;
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4) remove_mount ;;
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0|q|Q) break ;;
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*) warn "Invalid choice." ;;
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esac
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echo ""
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done
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ok "Done."
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}
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main "$@"
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