[Samba] Q: Upgrading samba from 4.9 to 4.13

[Marco Shmerykowsky]

On 1/20/2021 10:05 AM, L.P.H. van Belle via samba wrote:
> 
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Marco
>> Shmerykowsky via samba
>> Verzonden: woensdag 20 januari 2021 15:20
>> Aan: samba at lists.samba.org
>> Onderwerp: Re: [Samba] Q: Upgrading samba from 4.9 to 4.13
>>
>>
>> On 10/23/2020 3:57 AM, L.P.H. van Belle via samba wrote:
>>> Personaly, i would do this as followed.
>>>
>>> First i fully check my server, all logs, if i see any warning/error
>>> I check it, fix it if needed and clear log, reboot, check logs/fix again
>>>
>>> If AD-DC,
>>> Then i check the samba database: samba-tool dbcheck (--cross-nc)
>>> Fix if needed and :  samba-tool dbcheck --reindex
>>> Then upgrade and i would go from 4.9 to 4.10, check logs, reboot.
>>> Check logs, clear logs, reindex, next upgrade.
>>> If needed adjust smb.conf
>>> Repeat.
>>>
>>> If member, 4.9 to 4.12 or 4.13, fine, just upgrade.
>>>
>>> *note, if debian/ubuntu, use : apt(-get) dist-upgrade --autoremove --
>> purge
>>>
>>> This is an important one, in above steps, the older tdb/ldb files might
>> be
>>> left on the server, which will stop samba from working.
>>> Why --autoremove ; tdb 1.x will be replace by tdb 2.x and
>>> this will remove the old version from your server at install.
>>> --purge, it removes the leftovers/old configs.
>>>
>>> In both cases (ad-dc or member), you MUST make sure you config is valid
>> for the samba
>>> version your going to use.
>>> And i try to follow these rules.
>>>
>>> any xx.yy.0 version  should only be a test server in the production
>> network.
>>> any xx.yy.1 version  should only be an authentication only server in the
>> production network.
>>> any xx.yy.2 version  should only be the first fileserver server in the
>> production network.
>>> any xx.yy.3-4 version  should only be the first AD-DC server in the
>> production network.
>>> This above is a safe path to follow, i using that for years now.
>>>
>>>
>>> Greetz,
>>>
>>> Louis
>>
>> This may be a silly question, but going from 4.10
>> to 4.11 would also involve going from Stretch to
>> Buster.
>>
>> The upgrade guidance I read for Debian suggests
>> the following last two steps:
>>
>> apt-get full-upgrade
>> apt-get --purge autoremove
>>
>>   From what I read, this is effectively the same as
>> the command 'apt-get dist-upgrade --autoremove --purge'
>> which you listed below.
>>
>> So.... When upgrading Debian and jumping to 4.11,
>> I can use either set of commands?
>>
> 
> yes, only there is one difference..
> apt-get full-upgrade.. might not remove libldb somewhere, it happend,
> i cant recall exact on which version,but when that happens. Samba will fail and upgrade process stops..
> 
> apt-get install -f fixes that.
> 
> If you upgrading debian and samba in one go.
> First upgrade samba to the highest version you want in that distro version.
> then upgrade Debian itself. Repeat, upgrade samba upto where you want it, upgrade debian.
> 
> Thats how i upgrade.
> 
> Greetz,
> 
> Louis

On my test setup I'm on Samba 4.10.18 & Stretch.

Now... 4.11 needs Buster from what I understand.

Wouldn't I need to move to Buster first before going from
4.10-Stretch to 4.11-Buster?