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Rsnapshot is an open source utility that provides incremental back ups.


Install the rsnapshot package using pacman:

# pacman -S rsnapshot


In the install process, the config file is created. It is recommended you make a back up of this file in case you need to reconfigure the file again.

# cp /etc/rsnapshot.conf /etc/rsnapshot.conf.default

The rsnapshot.conf config file is well commented, and much of it should be fairly self-explanatory. For a full reference of all the various options, please consult the rsnapshot man page. Type:

# man rsnapshot

Choose the directory where you want to store the file system back ups, in this case I will store the back ups in /mnt/backups/

# All snapshots will be stored under this root directory.
snapshot_root   /mnt/backups/
Note: Fields are separated by tabs, not spaces. The reason for this is so it's easier to specify file paths with spaces in them.

Uncomment the lines refering to the unix commands cp, du, ssh (if you want to do remote back ups) and rsnapshot-diff, etc. This section of the file should look like this:

# LINUX USERS:   Be sure to uncomment "cmd_cp". This gives you extra features.
# EVERYONE ELSE: Leave "cmd_cp" commented out for compatibility.
# See the README file or the man page for more details.
cmd_cp          /usr/bin/cp

# uncomment this to use the rm program instead of the built-in perl routine.
cmd_rm          /usr/bin/rm

# rsync must be enabled for anything to work. This is the only command that
# must be enabled.
cmd_rsync       /usr/bin/rsync

# Uncomment this to enable remote ssh backups over rsync.
cmd_ssh /usr/bin/ssh

# Comment this out to disable syslog support.
cmd_logger      /usr/bin/logger

# Uncomment this to specify the path to "du" for disk usage checks.
# If you have an older version of "du", you may also want to check the
# "du_args" parameter below.
cmd_du          /usr/bin/du

# Uncomment this to specify the path to rsnapshot-diff.
cmd_rsnapshot_diff      /usr/local/bin/rsnapshot-diff

# Specify the path to a script (and any optional arguments) to run right
# before rsnapshot syncs files
#cmd_preexec    /path/to/preexec/script

# Specify the path to a script (and any optional arguments) to run right
# after rsnapshot syncs files
#cmd_postexec   /path/to/postexec/script
Note: cmd_preexec and cmd_postexec are custom scripts to be run before and after each run of rsnapshot