From Gentoo Wiki
< User:Ng0Jump to:navigation Jump to:search
This article is a stub. Please help out by expanding it - how to get started.
zpaq is a incremental, journaling backup utility and archiver.
USE flags for app-arch/zpaq Journaling incremental deduplicating archiving compressor
||Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces|
||Enable just-in-time compilation for improved performance. May prevent use of some PaX memory protection features in Gentoo Hardened.|
Cannot load package information. Is the atom app-arch/libzpaq correct?
emerge --ask zpaq
Emerging app-arch/zpaq-extras provides a set of additional compression profiles for zpaq:
emerge --ask app-arch/zpaq-extras
- zpaq add backup.zpaq /mnt/external/*
will only add the files whose last-modified date or size has changed since the previous backup.
A zpaq archive can contain at most 4 billion files and at most 250 terabytes of data after deduplication and before compression.