It says:

Warning: With the default settings, using ssh-keygen will overwrite an existing SSH key! As an alternative, with the parameter -f, you can specify a different file path.

But that just isn't enough detail for me.

It isn't at all clear about how to create/ add an additional pair of ssh-keys whilst keeping the existing ones intact.

OK, I had a play around and I've managed to do it:

On my local machine I did this:

ssh-keygen -f /home/josef/.ssh-storage/id_rsa
Generating public/private rsa key pair.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/josef/.ssh-storage/id_rsa
Your public key has been saved in /home/josef/.ssh-storage/id_rsa.pub

Then I copied the public key i.e. ~/.ssh-storage/id_rsa.pub up to my Hetzner Storage Box by doing this:

cat ~/.ssh-storage/id_rsa.pub | ssh -p23 uxxxxxx@uxxxxxx.your-storagebox.de install-ssh-key
uxxxxxx@uxxxxxx.your-storagebox.de's password: 
Key No. 1 (ssh-rsa josef@josef-ThinkPad-T510) was installed in RFC4716 format
Key No. 1 (ssh-rsa josef@josef-ThinkPad-T510) was installed in OpenSSH format

Then I copied the contents of the private key i.e. ~/.ssh-storage/id_rsa into the private key box in the Cloudron backup configuration:

And then it worked - hooray!

From there you can upload the public portion of the key as mentioned in the hetzner docs and use the private key for your Cloudron configs.

It says:

Warning: With the default settings, using ssh-keygen will overwrite an existing SSH key! As an alternative, with the parameter -f, you can specify a different file path.

But that just isn't enough detail for me.

It isn't at all clear about how to create/ add an additional pair of ssh-keys whilst keeping the existing ones intact.

@SansGuidon how would automatic mounting on boot work if the ssh key had a passphrase?

It wouldn't. But I've got the same problem.

I've already got a pair of SSH keys (with a passphrase) that I can successfully use to login to both my Storage Box and my VPS.

But of course this doesn't work for the Backup set-up because it requires a passphrase.

So, how can I create an additional set of non-passphrase keys just for use with the Storage Box?

Thanks!

Thanks !

@chetbaker said in Cannot mount Hetzner storage box for backups using SSHFS:

Oh I'm sorry, just to clarify, I'm trying to use Storage Boxes as Cloudron Volume.

Ah, OK. I've got that set-up but I've only ever used CIFS and not SSHFS so not sure what you have to do myself sorry.

Ah, but Girish gave instructions above in this very thread!

As @robi said if you don't have ssh-keygen installed, install it.

Please note that this is only a restricted shell

It says as much that it is a restricted shell. Not sure how to generate keys though, maybe a question for hetzner support.

Oh I'm sorry, just to clarify, I'm trying to use Storage Boxes as Cloudron Volume.

Ah, OK. I've got that set-up but I've only ever used CIFS and not SSHFS so not sure what you have to do myself sorry.

@chetbaker said in Cannot mount Hetzner storage box for backups using SSHFS:

Hetzner Volumes

Hetzner Cloud Volumes are a very different product to their Storage Boxes.

I don't think you can access them in the same way.

You can definitely use them as a Cloudron Volume though. I think you just have to mount them on your VPS server using fstab first.

Oh I'm sorry, just to clarify, I'm trying to use Storage Boxes as Cloudron Volume.

Hetzner Volumes

Hetzner Cloud Volumes are a very different product to their Storage Boxes.

I don't think you can access them in the same way.

You can definitely use them as a Cloudron Volume though. I think you just have to mount them on your VPS server using fstab first.

I'm sure they have a guide for this somewhere.

It doesn't appear that package exists on your server. Install it first.

What I'm showing is the prompt logged on Hetzner Volumes, not a server

XXXXXXXX /home > ssh-keygen
Command not found. Use 'help' to get a list of available commands.
XXXXXXXX /home > help
+-----------------------------------------------------------------------------+
| The following commands are available:                                       |
|   ls                                  list directory content                |
|   tree                                list directory content                |
|   cd                                  change current working directory      |
|   pwd                                 show current working directory        |
|   mkdir                               create new directory                  |
|   rmdir                               delete directory                      |
|   du                                  disk usage of files/directories       |
|   df                                  show disk usage                       |
|   dd                                  read and write files                  |
|   cat                                 output file content                   |
|   touch                               create new file                       |
|   cp                                  copy files/directories                |
|   rm                                  delete files/directories              |
|   unlink                              delete file/directory                 |
|   mv                                  move files/directories                |
|   chmod                               change file/directory permissions     |
|   md5|sha1|sha256|sha512              create hash sum of file               |
|   md5sum|sha1sum|sha256sum|sha512sum  create hash sum of file               |
|   head                                show first lines of file              |
|   tail                                show last lines of file               |
|   grep                                search for specific string in files   |
|   stat                                stat files/directory                  |
|                                                                             |
| Available as server side backend:                                           |
|   borg                                                                      |
|   rsync                                                                     |
|   scp                                                                       |
|   sftp                                                                      |
|   rclone serve restic --stdio                                               |
|                                                                             |
| Please note that this is only a restricted shell which do not               |
| support shell features like redirects or pipes.                             |
|                                                                             |
| You can find more information in our Docs:                                  |
|   https://docs.hetzner.com/robot/storage-box/                               |
+-----------------------------------------------------------------------------+
XXXXXXXX /home >

When I now try to save the backup settings using SSHFS it keeps working and never finishes. The log says

Jan 14 11:40:33 box:shell addMount spawn: /usr/bin/sudo -S /home/yellowtent/box/src/scripts/addmount.sh [Unit]\nDescription=backup\n\nRequires=unbound.service\nAfter=unbound.service\nBefore=docker.service\n\n\n[Mount]\nWhat=uxxxxx@uxxxxx.your-storagebox.de:/\nWhere=/mnt/cloudronbackup\nOptions=allow_other,port=23,IdentityFile=/home/yellowtent/platformdata/sshfs/id_rsa_uxxxxx.your-storagebox.de,StrictHostKeyChecking=no,reconnect\nType=fuse.sshfs\n\n[Install]\nWantedBy=multi-user.target\n\n 10
Jan 14 11:40:44 box:shell addMount (stdout): Failed to mount
Jan 14 11:40:44 box:shell addMount code: 3, signal: null
Jan 14 11:42:04 box:shell removeMount spawn: /usr/bin/sudo -S /home/yellowtent/box/src/scripts/rmmount.sh /mnt/cloudronbackup

Not sure what else I can try.

Edit: magically and waiting one night it works now.