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Thread: Question about PG_CONTROL_VERSION 1

Question about PG_CONTROL_VERSION 1

From
Condor
Date:
Hello,

I try restore from old hard drive an database. The system is not 
working, so I install new server, install postgres 9.0.3 and try to copy 
postgresql dir to new location but I receive error:

2021-04-14 11:47:04.205 UTC [10285] FATAL:  database files are 
incompatible with server
2021-04-14 11:47:04.205 UTC [10285] DETAIL:  The database cluster was 
initialized with PG_CONTROL_VERSION 1, but the server was compiled with 
PG_CONTROL_VERSION 903.
2021-04-14 11:47:04.205 UTC [10285] HINT:  It looks like you need to 
initdb.

How I can start the database or a way to check which files are used for 
database that I need it and copy only them ? Did I have a broken files 
(probably) ? Is there a way to copy only needed files or some way to 
export the data ?

Thanks,
HS

Re: Question about PG_CONTROL_VERSION 1

From
Tom Lane
Date:
Condor <condor@stz-bg.com> writes:
> I try restore from old hard drive an database. The system is not 
> working, so I install new server, install postgres 9.0.3 and try to copy 
> postgresql dir to new location but I receive error:

> 2021-04-14 11:47:04.205 UTC [10285] FATAL:  database files are 
> incompatible with server
> 2021-04-14 11:47:04.205 UTC [10285] DETAIL:  The database cluster was 
> initialized with PG_CONTROL_VERSION 1, but the server was compiled with 
> PG_CONTROL_VERSION 903.
> 2021-04-14 11:47:04.205 UTC [10285] HINT:  It looks like you need to 
> initdb.

Yeah, that's corrupt :-(.  Probably if you try pg_controldata you'll
find that pg_control is a complete mess.

            regards, tom lane

Re: Question about PG_CONTROL_VERSION 1

From
Condor
Date:
On 14-04-2021 17:41, Tom Lane wrote:
> Condor <condor@stz-bg.com> writes:
>> I try restore from old hard drive an database. The system is not
>> working, so I install new server, install postgres 9.0.3 and try to 
>> copy
>> postgresql dir to new location but I receive error:
> 
>> 2021-04-14 11:47:04.205 UTC [10285] FATAL:  database files are
>> incompatible with server
>> 2021-04-14 11:47:04.205 UTC [10285] DETAIL:  The database cluster was
>> initialized with PG_CONTROL_VERSION 1, but the server was compiled 
>> with
>> PG_CONTROL_VERSION 903.
>> 2021-04-14 11:47:04.205 UTC [10285] HINT:  It looks like you need to
>> initdb.
> 
> Yeah, that's corrupt :-(.  Probably if you try pg_controldata you'll
> find that pg_control is a complete mess.
> 
>             regards, tom lane

Hello,

thank you. I resolve the issue and get my data back successful. I create 
a new database and check the number that new database is created and I 
replace only datafiles from old directory to new one. In few years back 
I was trying to start similar topic without success, when you have the 
data but indexes and/or transaction log is corrupt / broken, how to get 
the data back without indexes and transactions log. I export my old 
data. Thanks again.

Regards,
HS