[GENERAL] Accessing an old database from a new OS installation.
Dear all, I am a novice user, so any help with the following problem would be greatly appreciated. I had Suse 9.1 installed on one hard disk in my machine (/dev/hda). On this machine Postgresql 7.4 was installed and I had one database which, I believe, was installed in the default location This hard disk no longer boots and so I have installed Suse 10.0 on another hard disk in the same machine (/dev/hdb). This OS has Postgresql 8.1 installed and I would like to be able to connect to the database on the old hard disk (/dev/hda) so that I can dump it to make a backup and eventually transfer it to the new hard disk. How should I go about doing this? Are there any problems I should be aware of in moving from version 7.4 to 8.1? thanks, Matthew Henderson ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [GENERAL] Accessing an old database from a new OS installation.
Am Freitag, 27. Januar 2006 11:30 schrieb Matthew Henderson: How should I go about doing this? Are there any problems I should be aware of in moving from version 7.4 to 8.1? For one thing you won't be able to read the 7.4 database using 8.1 binaries, so you need to get 7.4 installed first in order to make a dump. If there are no packages available you will have to compile it by hand. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [GENERAL] Accessing an old database from a new OS installation.
Okay, so if I have 7.4 installed and I have the old harddisk mount under /mnt/hda can I do something like pg_dump /mnt/hda/path_to_old_database dump.txt ??? On Fri, Jan 27, 2006 at 02:47:21PM +0100, Peter Eisentraut wrote: Am Freitag, 27. Januar 2006 11:30 schrieb Matthew Henderson: How should I go about doing this? Are there any problems I should be aware of in moving from version 7.4 to 8.1? For one thing you won't be able to read the 7.4 database using 8.1 binaries, so you need to get 7.4 installed first in order to make a dump. If there are no packages available you will have to compile it by hand. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [GENERAL] Accessing an old database from a new OS installation.
am 27.01.2006, um 14:21:31 + mailte Matthew Henderson folgendes: Okay, so if I have 7.4 installed and I have the old harddisk mount under /mnt/hda can I do something like pg_dump /mnt/hda/path_to_old_database dump.txt No, this is imposible IMHO. You need a PG-Server with this version (7.4), to read the data. pg_dump is only a client for the DB, it can't read the files. HTH, Andreas -- Andreas Kretschmer(Kontakt: siehe Header) Heynitz: 035242/47215, D1: 0160/7141639 GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net ===Schollglas Unternehmensgruppe=== ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [GENERAL] Accessing an old database from a new OS installation.
A. Kretschmer [EMAIL PROTECTED] writes: am 27.01.2006, um 14:21:31 + mailte Matthew Henderson folgendes: Okay, so if I have 7.4 installed and I have the old harddisk mount under /mnt/hda can I do something like pg_dump /mnt/hda/path_to_old_database dump.txt No, this is imposible IMHO. You need a PG-Server with this version (7.4), to read the data. pg_dump is only a client for the DB, it can't read the files. In addition, it's considered best practice to run (in this case) the 7.4 server against the old database, and use the 8.X pg_dump to dump it out for loading into the 8.X server. -Doug ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
