Hello! As far as I understood, for differential btrfs send/receive – I didn´t use it yet – I need to keep a snapshot on the source device to then tell btrfs send to send the differences between the snapshot and the current state.
Now the BTRFS filesystems on my SSDs are often quite full, thus I do not keep any snapshots except for one during rsync or borgbackup script run-time. Is it possible to tell btrfs send to use generation number xyz to calculate the difference? This way, I wouldn´t have to keep a snapshot around, I believe. I bet not, at the time cause -c wants a snapshot. Ah and it wants a snapshot of the same state on the destination as well. Well on the destination I let the script make a snapshot after the backup so… what I would need is to remember the generation number of the source snapshot that the script creates to backup from and then tell btrfs send that generation number + the destination snapshots. Well, or get larger SSDs or get rid of some data on them. Thanks, -- Martin -- 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
