Ensure necessary dependencies are installed:
sudo apt-get update
sudo apt-get install cifs-utils
Add post-up /etc/network/if-up.d/cifs-mount to your interface (here eth0) in /etc/network/interfaces file:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
post-up /etc/network/if-up.d/cifs-mount
Copy this post-up script in /etc/network/if-up.d/cifs-mount file:
#! /bin/sh
# Remount network dependant CIFS mounts when the eth0 interface comes up.
set -e
cat /etc/fstab | grep cifs | sed 's/\,\?noauto\,\?//' >/tmp/cifs-fstab
cat /tmp/cifs-fstab
mount -a --fstab /tmp/cifs-fstab
rm /tmp/cifs-fstab
exit 0
Open /etc/fstab file to ensure your CIFS mount has noauto option, so that it will not be mounted right upon startup, but later when network interface comes up, thanks to the post-up script written before:
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/sda1 / ext4 errors=remount-ro 0 1
/dev/sda5 none swap sw 0 0
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0
//192.168.0.1/share /mnt/share cifs noauto,credentials=/home/user/.smbcredentials,iocharset=utf8,sec=ntlm,file_mode=0777,dir_mode=0666,noperm 0 0
Fill the /home/user/.smbcredentials file if your CIFS mount requires authentication:
username=WindowsUser
password=########
Why not just use...
post-up mount /mnt/share