After installing the backuppc software (or at least copy of
BackupPC_tarExtract) you should be able to do
BackupPC_tarExtract -host <hostname> -num <backup_number> -path
/path/to/file > extracted_file
Extracting files from cpool is extremely painful - you have to find a full
backup from "backups" file for your host, then hash in pc/ directory, then
find the hash in cpool, then extracting the zlib compressed file (with
like pigz)... and maybe you can get something useful. For backuppc 4+ this
is even worse...
On Mon, 4 May 2026, [email protected] wrote:
The host running backuppc on my network had its root drive fail.
The actual backup storage was on an external drive which I had mounted on
/var/lib/backuppc
That external drive is still healthy. I remember spending a lot of time
getting backuppc to work just right and dread starting over. Since the
external drive includes the backup for localhost (the former box running
backuppc), it should include a backup for /etc/backuppc and the config.pl file
(I forget which directories I set for backup for localhost; hopefully I
included /etc).
It seems there should be a way I can extract my now-lost
/etc/backuppc/config.pl and other files in that directory. I am hoping I can
install backuppc fresh, then grab the /etc/backuppc files from the external
drive, and swap them in. Is this possible?
The names on the files on the external drive are all user-unfriendly.
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