Backup ZFS encrypted datasets

[Nord1ing]

Hello,
I figured out, how to make command work, but each time it does just perform full backup . i have correct snapshots created by script, what work fine with unencrypted datasets:
https://linustechtips.com/topic/1627479-zfs-datasets-backup-script-for-dataset-and-its-childrens/#comment-16847633

 

this command perform each time full backup:
 

zfs send -R 'Pool1/Dataset1/subdataset1@auto-backup-20260126-225523' | zfs receive -d 'pool2/dataset2/subdataset1'

 

this command perform first time full backup, then fails:

INFO: Running: zfs send -w -R 'Pool1/Dataset1/subdataset1@auto-backup-20260126-225523' | zfs receive -F -d 'pool2/dataset2/subdataset1'
cannot receive new filesystem stream: destination has snapshots
must destroy them to overwrite it

Maybe, there is any other ways to do make it work? With gui will be great 
OS: debian 13

[AbydosOne]

I'm not certain what your desired outcome is, so here's some observations/suggestions...

 

I suspect that the issue may lie with the -d flag. Is it your intention to invoke the "discard first token of source path and append to destination" function of ZFS receive? (I ask because your paths are otherwise the same in different pools and my experience/preference would be to have the dataset backed up at that same location on a different dataset.)

 

 

I also suspect (without testing this myself) that that flag may be inadvertently interacting with the -F flag.

 

Alternative option: are you looking for the -i incremental backup function?

[Nord1ing]

21 hours ago, AbydosOne said:

I'm not certain what your desired outcome is, so here's some observations/suggestions...

 

I suspect that the issue may lie with the -d flag. Is it your intention to invoke the "discard first token of source path and append to destination" function of ZFS receive? (I ask because your paths are otherwise the same in different pools and my experience/preference would be to have the dataset backed up at that same location on a different dataset.)

 

 

I also suspect (without testing this myself) that that flag may be inadvertently interacting with the -F flag.

 

Alternative option: are you looking for the -i incremental backup function?

As i understand, it should be zfs send -i a pool/fs@b (https://openzfs.github.io/openzfs-docs/man/master/8/zfs-send.8.html)
and for other (encrypted) side for zfs receive? i still fail to create a working command  

[AbydosOne]

6 minutes ago, Nord1ing said:

As i understand, it should be zfs send -i a pool/fs@b (https://openzfs.github.io/openzfs-docs/man/master/8/zfs-send.8.html)
and for other (encrypted) side for zfs receive? i still fail to create a working command  

Explain what you're trying to do. I can't really help because I don't know what you're expecting the command to do.

 

I will say that zfs send -i requires two snapshots to function (it will send only the differences between the two of them).

[Nord1ing]

6 minutes ago, AbydosOne said:

Explain what you're trying to do. I can't really help because I don't know what you're expecting the command to do.

 

I will say that zfs send -i requires two snapshots to function (it will send only the differences between the two of them).

I have three datasets to backup incrementally:

• one unencrypted source to encrypted destination (keep destination key)
• one encrypted source to encrypted destination (keep destination key)
• one encrypted source to encrypted destination (keep source key)