Read how to use BackupPC from my experience with it backing up Windows XP and Windows 7 machines.
BackupPC is an application that runs on a Linux platform and is accessible from any computer on the network using any web browser. It will back up any PC and folders that are required. Space is saved by compression and reusing files already backed up from other machines.
Ideally the backup files should be kept on an external Linux formatted partition.
Please make a note of the web frontend password for the user backuppc. If you don't like the password, you can change it by running
If the pool disk requirements grow you might need to copy the entire data directory to a new (bigger) file system. Hopefully you are lucky enough to avoid this by having the data directory on a RAID file system or LVM that allows the capacity to be grown in place by adding disks.
The backup data directories contain large numbers of hardlinks. If you try to copy the pool the target directory will occupy a lot more space if the hardlinks aren't re-established.
The best way to copy a pool file system, if possible, is by copying the raw device at the block level (eg: using dd). Application level programs that understand hardlinks include the GNU cp program with the -a option and rsync -H. However, the large number of hardlinks in the pool will make the memory usage large and the copy very slow. Don't forget to stop BackupPC while the copy runs.
This copies the existing pool (backuppc) to a new disk which has been linked to backuppc1. The "&" causes the job to run in the background.
For my system the pool is located on a USB external drive. I needed to upgrade from Fedora to Ubuntu with BackupPC keeping the same pool.
For example, I have an external HDD mounted at /media/WDextHDD-L1/.
To use this create a symbolic link from /var/lib/backuppc to /media/WDextHDD-L1/backupPCdata using the command: