Re:Debian 13 arrives with major updates for Linux users – wh...
by lupusreal on Thursday August 14, 2025 @04:58AM
(#44898299)
OpenSUSE has this sort of thing configured by default using BTRFS and snapper. Automatically creates copy-on-write snapshots before and after every time you use the package manager. I think this should be the default on most end-user oriented distros.
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Re:Debian 13 arrives with major updates for Linux users – wh...
by jauntywundrkind on Thursday August 14, 2025 @12:27PM
(#44902409)
Fwiw there's a really nice write-up on how Steam Deck does A/B updates, using rayc and casync/desync. https://github.com/randombk/steamos-teardown/blob/master/doc...
Also Collabora had a nice update on tuning work they did. https://www.collabora.com/news-and-blog/news-and-events/stea...
I'm a little surprised they use casync and multiple partitions, given that root is on btrfs. As they have it is more reliable if anything does go bad, so makes sense, but: given that steam decks are on a given snapshot of the btrfs system, it seems like they could just send an incremental update to the next release and try to boot that. Oh ah, that breaks down if, like me, you disable the readonly root.