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fsarchiver is very nice. Not fast on pulling out files, but, I mean, it’s infinitely faster than tar.
Only quit using it so much because zfs-send is the real big hammer.
Best part is it can regenerate partitions, or whatever, or you can restore a larger partition to a smaller one, all the cool permutations assuming the files actually fit. Can re-write users and permissions if you like, all the bells.
Support for basic file attributes (permissions, ownership, …)
Support for basic file-system attributes (label, uuid, block-size) for all linux file-systems
Support for multiple file-systems per archive
Support for extended file attributes (they are used by SELinux)
Support for all major Linux filesystems (extfs, xfs, btrfs, reiserfs, etc)
Support for FAT filesystems (in order to backup/restore EFI System Partitions)
Experimental support for cloning ntfs filesystems
Checksumming of everything which is written in the archive (headers, data blocks, whole files)
Ability to restore an archive which is corrupt (it will just skip the current file)
Multi-threaded lzo, gzip, bzip2, lzma/xz compression: if you have a dual-core / quad-core it will use all the power of your cpu
Lzma/xz compression (slow but very efficient algorithm) to make your archive smaller.
Support for splitting large archives into several files with a fixed maximum size
Encryption of the archive using a password. Based on blowfish from libgcrypt.
Oh, also you can always copy it over to an iso image and mount it, or a qcow or raw image of some kind for loop mount.
Hey, didn’t know about this: https://www.linux.com/news/mounting-archives-fuse-and-archivemount/
Ah, ok, understood then, it didn’t fit my use-case or workflow, it works for others, my bad, appreciate the correction!