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Sat, 04 Oct 2008

/Admin/backups/backuppc: Prepping an Offsite Backup

Backuppc has a builtin method (called "archiving") for generating a set of files from the backup archive that are CD/DVD burn-ready. I do something different.

In the Backuppc GUI, to extract a directory from the backup archive in the form of a tar file, click on "Browse backups", select a directory, then click on "Restore selected files". On the next page select "Download tar archive". Do this for each directory you want to move offsite, naming the saved gtar files appropriately.

Rename one of the files to "backup.gtar", then merge each of the other archives into backup.gtar with the command:

tar -Af backup.gtar www.gtar

If you then do a

tar -tvf backup.gtar | less

you will see that all of your directories from the original tar files are now in the same compressed gtar file.

Now encrypt the file:

gpg -c backup.gtar (you will be prompted for a password)

To decrypt at a later date:

gpg backup.gtar.gpg

and then extract the contents of the resulting backup.gtar with

tar -xvf backup.gtar

posted at: 09:59 | path: /Admin/backups/backuppc | permanent link to this entry

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Sat, 04 Oct 2008