> Is there a way to set options like compression on a btrfs permanently to > activate them even when mounted automatically by the desktop or manually > by a third person?
Actually there is. Btrfs supports per file compression flag, and if this flag is set to a directory, all files in that directory will inherit the flag. So you can mount the filesystem for the first time and set the flag for the root dir, and that's it. There's a flaw that the compression method is zlib, which should be changed to lzo (or lz4, or snappy..) in the future. chattr is used to set file flags, and there was a patchset to enable compression flag for chattr, but was never merged: http://www.spinics.net/lists/linux-btrfs/msg09604.html http://www.spinics.net/lists/linux-btrfs/msg09605.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
