Not to worry - here's how you can backup your Mac over the network to your existing Linux server without mucking about with HFS+ or any other filesystem.
First, install netatalk and avahi on the Linux box.
Once you have those installed, configure netatalk using the following as a guide.
Turn off atalkd and papd in netatalk.conf:
# Set which daemons to run (papd is dependent upon atalkd): ATALKD_RUN=no PAPD_RUN=no CNID_METAD_RUN=yes AFPD_RUN=yes TIMELORD_RUN=no A2BOOT_RUN=no
- -noddp -advertise_ssh
AppleVolumes.defaultand add the path to where you'd like to store the Time Machine backup(s):
/path/to/backup/dir "NAME OF VOLUME"
# /etc/init.d/atalk restart
Configure avahi so that the Mac will automatically pickup the atalk share.
You only need to add an XML config file, netatalk.xml, in the avahi/services directory:
<?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-group>
# /etc/init.d/avahi-daemon restart
Now your server is ready to go, we just need the Mac to connect up.
On your Mac, using Finder, click Go -> Connect to Server and put in the IP address of your server.
This should prompt you for a username and password.
Once authenticated the Mac should now have this share mounted. ... and, finally, to allow Time Machine to recognise the network share: (thanks, Mike!)
$ defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1