Re: [Tails-dev] An outside of the box proposal re persistenc…

Hi,

alienpup (2021-08-03):
>> alienpup (2021-08-02):
>> > The now rather lengthy (lengthy is good) discussion regarding Tails
>> > persistence backup has not considered the benefits of an alternative
>> > persistence file system, one designed with fast, easy backups in
>> > mind. Of the several such file systems that come to mind, btrfs is
>> > perhaps the easiest to implement. […]
>> >
>> > If the Tails persistence volume were a btrfs file system, any backup
>> > application could be employed to copy data there. The btrfs
>> > "snapshot" feature would then make what are in effect incremental
>> > backups simple and fast. These snapshots require very little
>> > additional storage space, and rather than being something special to
>> > the btrfs file system, snapshots are basically subvolumes which can
>> > be browsed and/or mounted. Importantly, any backup application
>> > running on any other Linux file system can move data into and out of
>> > a btrfs file system. No walls, no fences, and no special backup file
>> > formats required (though optional).
>>
>> The way I understand your suggestion:
>> [...]
>> Correct?
>
> Absolutely. […]

Thanks for clarifying. I've added a note to the blueprint so we don't
forget this option whenever it'll be time to work on the S4
user scenario. We won't invest resources into this before we actually
have backups (S1) but it's great that you're experimenting with btrfs
in the context of Tails!