Raspberry Pi Backup Server

Last week I presented on How Do I Make a backup server with a raspberrypi. I covered going from a fresh pi to working network drive in probably about 30 minutes of actual work along with 30 minutes of talking about options for other things to do. There were 6 or so people that came and for those people, and others that could not make it, here are my notes on how to do this. It is not a recipe file with step by step with commands that can be cut and pasted. This is because there are lots of options and the values I use are going to be different that what you will need on your network. These instructions will guide you through this and tell you where to get things.

Buy raspi 2 or 3, hard drive(s), case(s), sd card
Download Raspian - https://www.raspberrypi.org/downloads/raspbian/
Write image to sd card -
https://www.raspberrypi.org/documentation/installation/installing-images/README.md
connect keyboard and network to raspi

Boot raspi

edit /etc/default/keyboard, change gb to us, save and reboot

apt-get update

apt-get upgrade

useradd to create the network backup owner
ssh-keygen to make .ssh and some keys
edit ~netback/.ssh/authorized_keys to add your keys

apt-get install samba samba-common-bin nfs-common nfs-server rsync

parted to check partitions on USB disks
mkfs to create the file systems
edit /etc/fstab to mount the USB drives

http://theurbanpenguin.com/wp/index.php/setting-up-a-samba-server-on-raspberry-pi/

edit /etc/samba/smb.conf
start nmbd and smbd
smbpasswd -a netback
edit /etc/exports
exportfs
update the nfs-kernel-server files
start service
Use rsync from linux or mac to backup to the raspi
#!/bin/bash

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

if [ "X$1" == "X" ]; then
echo "Missing argument"
echo "Usage: $0 {1|2}"
exit 1
fi

DAY=`date +%d`
DESTDIR=/back$1
BACKDIR=/back$1/backup/day.$DAY
SRCDIR=/home
LOGFILE=/var/log/sync$1/log.$DAY

if [ -d $BACKDIR ]; then
rm -rf $BACKDIR
fi

mkdir $BACKDIR

cd $DESTDIR

time rsync -avHb --backup-dir=$BACKDIR --delete 172.16.100.10:$SRCDIR . > $LOGFILE 2>&1

tail -30 $LOGFILE | Mail -s "rasp01 nightly sync $1 of colossus" cws@faultline.com

exit 0