Hi, On Mon, 2021-02-08 at 21:02 -0700, Chris Murphy wrote: > Hi, > > This is in regards to this Fedora 34 change: > https://fedoraproject.org/wiki/Changes/BtrfsTransparentCompression#Scope > > The gist is to do 'mount -o compress=zstd:1' anytime Btrfs is used, > whether Destination Installation>Automatic or Custom or > Advanced-Custom. Apply it during the installation, and add it to > /etc/fstab. > > Somehow I got confused thinking that autopart supports --fsoptions, > and that would be the way to do this. But (a) --fsoptions isn't > supported with autopart, and (b) it wouldn't be a universal approach > anyway. And we want this to be consistent. Now I'm thinking it needs > to go somewhere in: > > https://github.com/storaged-project/blivet/blob/3.4-devel/blivet/devices/btrfs.py > > Am I on the right track, or does it need to go somewhere else, or in > addition to that? > (I'm one of the change owners, and trying to figure this out with Chris). Ideally we have a solution that is configurable - i.e. this is exposed via a kickstart command (and probably entailing changes in Anaconda and pykickstart), but if that is not possible, or require a lot of rework (which we can try to work on), if we are willing to carry a patch for blivet or some other component to override the behavior just for Fedora 34, what's the best way of achieving that? Btrfs is probably the only filesystem with built-in compression that we potentially care about, so designing an interface to expose this functionality might be an overkill -- but we're not sure. Thanks, -- Michel Alexandre Salim profile: https://keyoxide.org/michel@xxxxxxxxxxxxxxx
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