rinto r john <rintotkml@gmail.com> writes:
> while starting postgressql 8.3 it shows an FAITAL error,can u please help
> to solve the error
> error shown as below.
> FATAL: incorrect checksum in control file.
This isn't a bug (or at least you've not provided any evidence that it
is), so pgsql-general or pgsql-admin would be a more appropriate forum.
Before anyone can offer really useful advice, we'd need to know:
* how'd you get into this situation? Something bad must have happened,
perhaps a power failure or O/S crash ... do you know what?
* What platform is this on? And which 8.3.x PG release exactly?
(I'll refrain from lecturing you about running out-of-support releases,
but you are ...)
* Is pg_controldata able to print anything useful from the control file?
What does it show exactly?
Your basic alternatives for getting out of this situation are going to
be (1) re-initdb and restore from your last backup, or (2) apply
pg_resetxlog and then try to pick up the pieces. Neither one of these
is particularly appealing, especially if you haven't got a recent
backup. Without answers to the questions above, it's hard to say
what your prospects of success with (2) are. In any case I'd
recommend making a physical copy (e.g. tar or zip backup) of your
whole $PGDATA directory tree before you start, so you can at least
get back to where you are if things go wrong.
regards, tom lane
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