raspberry-timemachine.sh

#this won't work as a script as you'll get user prompts that you should read. Just run each line individually.
#this is a blend of what's found on google, but re-arranged into a faster deploy. 
#via: https://www.howtogeek.com/276468/how-to-use-a-raspberry-pi-as-a-networked-time-machine-drive-for-your-mac/
#and: http://www.techradar.com/how-to/computing/how-to-make-a-mac-time-capsule-with-the-raspberry-pi-1319989

# On your mac, make sure the USB hard drive is HFS+ (The better filesystems are more annoying to work with on Mac), with the appropriate permissions.
# In terminal write: "chmod 777 /Volumes/Time\ Machine && ls -l /Volumes" (Replace "Time\ Machine" with whatever your drive is called)
# You can connect the drive to your pi now.

#update system
sudo apt-get update && sudo apt-get upgrade 
#read hfs+ filesystem (the one OSX & Mac OS uses)
sudo apt-get install hfsprogs hfsplus

#install, make, and build netatalk and it's dependencies. This is so we can connect to the pi via bonjour.
sudo aptitude install build-essential libevent-dev libssl-dev libgcrypt11-dev libkrb5-dev libpam0g-dev libwrap0-dev libdb-dev libtdb-dev libmysqlclient-dev avahi-daemon libavahi-client-dev libacl1-dev libldap2-dev libcrack2-dev systemtap-sdt-dev libdbus-1-dev libdbus-glib-1-dev libglib2.0-dev libio-socket-inet6-perl tracker libtracker-sparql-1.0-dev libtracker-miner-1.0-dev
wget http://prdownloads.sourceforge.net/netatalk/netatalk-3.1.10.tar.gz
tar -xf netatalk-3.1.10.tar.gz
cd netatalk-3.1.10
./configure \
        --with-init-style=debian-systemd \
        --without-libevent \
        --without-tdb \
        --with-cracklib \
        --enable-krbV-uam \
        --with-pam-confdir=/etc/pam.d \
        --with-dbus-daemon=/usr/bin/dbus-daemon \
        --with-dbus-sysconf-dir=/etc/dbus-1/system.d \
        --with-tracker-pkgconfig-version=1.0
make
sudo make install


#make a Time Machine folder, you can guess what tm stands for.
sudo mkdir -p /media/tm

#auto-mounts drives, links drive directory to to the folder we've just created. 
#More: https://help.ubuntu.com/community/Fstab
#Your drive probably isn't "/dev/sda2" like mine, so use tools like "lsblk" to find out where it's connected to.
#TODO mount based on UUID 
sudo nano /etc/fstab
/dev/sda2 /media/tm hfsplus force,rw,user,auto 0 0

#may not be necessary to mount the drive -
sudo mount -a


# TODO - Auto config text files without copy and paste

#Here you need to add "mdns4" and "mdns" to the line that starts with “hosts:”, so that it looks like this:
#hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4 mdns
sudo nano /etc/nsswitch.conf

# Now add below to afpd.service, this will have the Raspberry Pi mimic the Apple Time Capsule.
# <?xml version="1.0" standalone='no'?><!--*-nxml-*-->
# <!DOCTYPE service-group SYSTEM "avahi-service.dtd">
# <service-group>
#     <name replace-wildcards="yes">%h</name>
#     <service>
#         <type>_afpovertcp._tcp</type>
#         <port>548</port>
#     </service>
#     <service>
#         <type>_device-info._tcp</type>
#         <port>0</port>
#         <txt-record>model=TimeCapsule</txt-record>
#     </service>
# </service-group>

sudo nano /etc/avahi/services/afpd.service

# Network share the external drive, by adding this below:
# [Global]
#   mimic model = TimeCapsule6,106
# 
# [Time Machine]
#   path = /media/tm
#   time machine = yes
sudo nano /usr/local/etc/afp.conf


# Launch time machine now.
sudo service avahi-daemon start
sudo service netatalk start

# Autolaunch on every startup
sudo systemctl enable avahi-daemon
sudo systemctl enable netatalk