Upgrading Alpha9 install to master

[Andrew Bartlett]

On Sun, 2012-08-19 at 17:19 -0700, Brian Marshall wrote:
> Hello, long time samba4 user (going back to the TPs) here. I stopped 
> keeping up with master around Alpha9, since everything was stable for my 
> small domain.
> However, things have changed with my latest round of hardware upgrades, 
> and I can't successfully use new machines on the domain. I can join, but 
> then wbinfo doesn't work, and I can't log on with SSO (tons of IDMap 
> errors).
> I'd like to be able to upgrade to a newer version of Samba to see if 
> that fixes my problems, but no matter what version I try, 
> upgradeprovision just hoses my install. I've tried 
> Alpha10,11,13,14,15,16 and 17 as well as master. They all build properly 
> and segfault at different places. The Alphas segfault looking for ldb 
> files (and creating them just makes a segfault farther along, which 
> hoses the install), and master segfaults trying to parse the 
> Configuration CN. I've pasted the output below:


> Is there any way for me to dump out the users/computers from my current 
> domain and reload them into a freshly provisioned one?
> I'd rather not have to unjoin/rejoin all the computers and recreate all 
> the users manually and have to deal with profile problems or fudging 
> SIDs. I tried to dump out LDIFs with JXplorer and remerge into a freshly 
> provisioned server, but couldn't manage it for some reason.
> Any help would be greatly appreciated. Please let me know if there is 
> any other info I can provide.

Yikes, this is going to be tricky.  However, I will try and find a way
to get this going for you.  I have a very special respect for those who
have been running Samba4 for a long time, and I hope we can figure
something out that will work.  I do think we can salvage your
configuration.  One of the ways might actually be to (oddly) migrate via
Samba3 or at least it's passdb layer. 

Anyway, at the moment I can just ack your mail, and ask you to keep on
my case about fixing this and finding a way out for you.

To start on something that I can perhaps help with, can you try and run
'samba-tool dbcheck --cross-ncs' on a copy of the DB?  I would really
like to get a DB of that age to at least start to self-fix, if we can.
That may in turn allow us to get upgradeprovision to work, or give us a
DB that current Samba4 will accept.  Once we have that, exporting and
importing the user data becomes easier. 

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org