different bup versions on client and server

[Marcus Schopen]

Hi,

on client side (Ubuntu 20.04 LTS) I have to us bup 0.32, on server side
an older version 0.29. Will those different versions work together?

Cheer
Marcus

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Marcus Schopen
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[Rob Browning]

Marcus Schopen <li...@localguru.de> writes:

> on client side (Ubuntu 20.04 LTS) I have to us bup 0.32, on server side
> an older version 0.29. Will those different versions work together?

I suspect they might, but we don't promise/test that right now, so I'd
recommend using the same version on both sides if you can.

If it helps, bup should run just fine from a built source tree, and
happy to assist in getting that working if it's useful.

--
Rob Browning
rlb @defaultvalue.org and @debian.org
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[Johannes Berg]

On Mon, 2021-11-15 at 20:17 -0600, Rob Browning wrote:
> Marcus Schopen <li...@localguru.de> writes:
>
> > on client side (Ubuntu 20.04 LTS) I have to us bup 0.32, on server side
> > an older version 0.29. Will those different versions work together?
>
> I suspect they might, but we don't promise/test that right now, so I'd
> recommend using the same version on both sides if you can.
>

FWIW, I often run different versions on client/server, and all the work
I've done (and seen) on the protocol recently should leave that working.

However, yes, it's not (otherwise) tested -- I'd think mostly because
it's hard to, as that requires actually using two versions, not just the
current checkout you have to test.

johannes

[Marcus Schopen]

Thanks a lot. I think, I'll use rsync to get the files from client to
server and then put the rsync'ed files to bup. It's some waste of space
on the backup server but this seems the best way to me if you can't
work with same versions on client and server.

Cheers
Marcus

[Johannes Berg]

Given the simplicity and stability of the client/server protocol (it's
just pushing objects across, and then a ref update when the save
(commit) is done), I tend to trust that it works alright with different
versions, but of course what you're suggesting is possible too :)

johannes

[Marcus Schopen]

Yes, I use bup for years in client server setup to save qcow2 images up
to 100 GB. I can test it with different versions first.

Cheers
Marcus