samba - Oct 2016 - Mac OS Timemachine over SMB

Is it possible to backup Mac OS devices through a Samba share on Samba
4.4.6 on Fedora 24 with Time Machine? I am able to successfully advertise
the share through Avahi, connect to it in Finder, and read/write files. I
am also able to see the share as a destination in Time Machine, but
selecting it shows an error that "The selected network backup disk does not
support the required capabilities. Please choose another network backup
disk."
>From my understanding of the Apple documentation found here, I think that
the current version of Samba satisfies most of the requirements with
vfs_fruit but I would appreciate some confirmation:
https://developer.apple.com/library/content/releasenotes/NetworkingInternetWeb/Time_Machine_SMB_Spec/
.

- AAPL Create Context extension with F_FULLSYNC (I believe this is
supported by vfs_fruit)
- SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2
- SMB2_CREATE_REQUEST_LEASE_V2

Below is a copy of my SMB configuration (I stood up a VM for testing with
only one share due to a warning in the vfs_fruit documentation about mixing
shares with and without vfs_fruit):
[global]
        workgroup = SAMBA
        security = user
        log level = 8
        log file = /var/log/samba.%m

        passdb backend = tdbsam

        printing = cups
        printcap name = cups
        load printers = yes
        cups options = raw

[time]
        ea support = yes
        vfs objects = catia fruit streams_xattr
        fruit:resource = file
        fruit:metadata = netatalk
        fruit:locking = netatalk
        fruit:encoding = native
        fruit:aapl = true
        browseable = Yes
        read only = No
        inherit acls = Yes
        path = /srv

Thanks,
Kevin

Hello Kevin,

Mac OS by default looks for TimeMachine volumes over AFP not CIFS-SMB…  Like
you, I experimented with Samba a couple of years ago to try to get it to work
anyway.

With a few modifications on the client’s part and some configuration on the
Samba server I got it to work…  but recovery only worked for clients that I had
configured in advance…  Recovery with the Mac OS tools (Migration Assistant,
etc) did not work properly without first mounting the volume beforehand.

Again, Mac OS was looking for an AFP volume.

If you’re interested, I wrote up a little guide for configuring a ‘homemade’
TimeMachine server using Linux and Netatalk.  But it’s in french and might be
out of date.

Best regards, Luc.

> On Oct 9, 2016, at 7:09 PM, Kevin via samba <samba at
lists.samba.org> wrote:
> 
> Is it possible to backup Mac OS devices through a Samba share on Samba
> 4.4.6 on Fedora 24 with Time Machine? I am able to successfully advertise
> the share through Avahi, connect to it in Finder, and read/write files. I
> am also able to see the share as a destination in Time Machine, but
> selecting it shows an error that "The selected network backup disk
does not
> support the required capabilities. Please choose another network backup
> disk."
> 
> From my understanding of the Apple documentation found here, I think that
> the current version of Samba satisfies most of the requirements with
> vfs_fruit but I would appreciate some confirmation:
>
https://developer.apple.com/library/content/releasenotes/NetworkingInternetWeb/Time_Machine_SMB_Spec/
> .
> 
> - AAPL Create Context extension with F_FULLSYNC (I believe this is
> supported by vfs_fruit)
> - SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2
> - SMB2_CREATE_REQUEST_LEASE_V2
> 
> Below is a copy of my SMB configuration (I stood up a VM for testing with
> only one share due to a warning in the vfs_fruit documentation about mixing
> shares with and without vfs_fruit):
> [global]
>        workgroup = SAMBA
>        security = user
>        log level = 8
>        log file = /var/log/samba.%m
> 
>        passdb backend = tdbsam
> 
>        printing = cups
>        printcap name = cups
>        load printers = yes
>        cups options = raw
> 
> [time]
>        ea support = yes
>        vfs objects = catia fruit streams_xattr
>        fruit:resource = file
>        fruit:metadata = netatalk
>        fruit:locking = netatalk
>        fruit:encoding = native
>        fruit:aapl = true
>        browseable = Yes
>        read only = No
>        inherit acls = Yes
>        path = /srv
> 
> Thanks,
> Kevin
> -- 
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba

I'm interested in this - and happy to add my own experiences in the process
of setting up a Time Machine backup to a ZFS-based AFP network server that
also runs Samba.

Best,

Ben

On 10 October 2016 at 14:15, Luc Lalonde via samba <samba at
lists.samba.org>
wrote:
> Hello Kevin,
>
> Mac OS by default looks for TimeMachine volumes over AFP not CIFS-SMB…
> Like you, I experimented with Samba a couple of years ago to try to get it
> to work anyway.
>
> With a few modifications on the client’s part and some configuration on
> the Samba server I got it to work…  but recovery only worked for clients
> that I had configured in advance…  Recovery with the Mac OS tools
> (Migration Assistant, etc) did not work properly without first mounting the
> volume beforehand.
>
> Again, Mac OS was looking for an AFP volume.
>
> If you’re interested, I wrote up a little guide for configuring a
> ‘homemade’ TimeMachine server using Linux and Netatalk.  But it’s in french
> and might be out of date.
>
> Best regards, Luc.
>
>
> > On Oct 9, 2016, at 7:09 PM, Kevin via samba <samba at
lists.samba.org>
> wrote:
> >
> > Is it possible to backup Mac OS devices through a Samba share on Samba
> > 4.4.6 on Fedora 24 with Time Machine? I am able to successfully
advertise
> > the share through Avahi, connect to it in Finder, and read/write
files. I
> > am also able to see the share as a destination in Time Machine, but
> > selecting it shows an error that "The selected network backup
disk does
> not
> > support the required capabilities. Please choose another network
backup
> > disk."
> >
> > From my understanding of the Apple documentation found here, I think
that
> > the current version of Samba satisfies most of the requirements with
> > vfs_fruit but I would appreciate some confirmation:
> > https://developer.apple.com/library/content/releasenotes/
> NetworkingInternetWeb/Time_Machine_SMB_Spec/
> > .
> >
> > - AAPL Create Context extension with F_FULLSYNC (I believe this is
> > supported by vfs_fruit)
> > - SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2
> > - SMB2_CREATE_REQUEST_LEASE_V2
> >
> > Below is a copy of my SMB configuration (I stood up a VM for testing
with
> > only one share due to a warning in the vfs_fruit documentation about
> mixing
> > shares with and without vfs_fruit):
> > [global]
> >        workgroup = SAMBA
> >        security = user
> >        log level = 8
> >        log file = /var/log/samba.%m
> >
> >        passdb backend = tdbsam
> >
> >        printing = cups
> >        printcap name = cups
> >        load printers = yes
> >        cups options = raw
> >
> > [time]
> >        ea support = yes
> >        vfs objects = catia fruit streams_xattr
> >        fruit:resource = file
> >        fruit:metadata = netatalk
> >        fruit:locking = netatalk
> >        fruit:encoding = native
> >        fruit:aapl = true
> >        browseable = Yes
> >        read only = No
> >        inherit acls = Yes
> >        path = /srv
> >
> > Thanks,
> > Kevin
> > --
> > To unsubscribe from this list go to the following URL and read the
> > instructions:  https://lists.samba.org/mailman/options/samba
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>