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Serious trouble with my postgresql

From: Mário Gamito <gamito(at)netual(dot)pt>
To: pgsql-admin(at)postgresql(dot)org
Subject: Serious trouble with my postgresql
Date: 2004-09-14 10:06:42
Message-ID: 4146C2B2.5080106@netual.pt (view raw or flat)
Thread:
Lists: pgsql-admin
Hi,

After i've imported a text file into postgresql, apparently with 
success, because it responded "COPY", postgresql died after i left its 
prompt and never restarted again.

Meanwhile, i guess i've screwed up :( and erased two files with 0 bytes, 
something like 0000000000000001, i can't remember quite well.


Now, if i run as user postgres the command:

# [postgres(at)nau pg_xlog]$ /usr/bin/postmaster -D /usr/bin/postmaster -D 
/var/lib/pgsql/data

i get this error:

"LOG:  could not create IPv6 socket: Address family not supported by 
protocol
LOG:  database system was shut down at 2004-09-08 16:09:16 WEST
LOG:  could not read from log file 0, segment 1 at offset 4153344: Success
LOG:  invalid primary checkpoint record
LOG:  could not read from log file 0, segment 1 at offset 4112384: Success
LOG:  invalid secondary checkpoint record
PANIC:  could not locate a valid checkpoint record
LOG:  startup process (PID 15082) was terminated by signal 6
LOG:  aborting startup due to startup process failure
[postgres(at)nau pg_xlog]$"

Is this recoverable ?
At least, can i recever the contents of the databases (remember i cannot 
start postgresql) in some way, so i can reinstall postgresql from 
scratch and insert the databases again ?

How ?

Any help would be appreciated.

Warm Regards,
Mário Gamito

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