On Wed, Jun 11, 2025 at 11:59:24AM -0700, Jim Cunning wrote: > I configured the PGDG repository and tried to install postgresql-10 on my > kubuntu 24.04 LTS desktop system, but apt refused to install it because of > unsatisfied dependencies. I then installed kubuntu 22.04 LTS on a backup > system and was able to install postgresql-10 there. I was able to use pg_dump > to recover all the data and move it to the replacement server running ubuntu > 24.04 LTS with postgresql-16. All should be good. Thanks for the help.
Uh, newer vesions of pg_dump should be able to dump from a PG 10 cluster. --------------------------------------------------------------------------- > > On 6/10/25 13:17, Adrian Klaver wrote: > > On 6/10/25 13:14, Adrian Klaver wrote: > > On 6/10/25 13:01, Jim Cunning wrote: > > I had a Ubuntu 20.04 LTS system with a postgresql version 10 > database, and the system became unbootable. The database was > stored in /var/lib/postgresql/10/main and I was able to recover > the > entire contents of the data in that directory and below. I now > have a system running ubuntu 24.04 LTS with postgresql version 16. > > I obviously no longer have a running version 10 server, so I > cannot > use pg_dump to retrieve the data. I have placed the recovered > version files in /var/lib/postgresql/10/main on my new system, > alongside the /var/lib/postgresql/16/main that was created when I > installed postgresql. I have tried several iterations of the > pg_upgradecluster command, a Python script provided by Ubuntu, but > it says it cannot find the database files. > > I also see from the postgresql wiki pages that there is a > pg_upgrade utility program, but cannot find in any of the > Ubuntu-provided installation files. Can anyone provide some > guidance on how I might proceed? > > > 1) Do: > > man pg_upgradecluster > > 2) Assuming you used the PGDG repos to install Postgres you can do: > > sudo apt install postgresql-10 > > to get a Postgres 10 install. I would move the /var/lib/postgresql/10/ > main you created out of the way and then move the contents back in to > the installed version. > > > Forgot to say, be sure and retain a copy of the original 10 $DATADIR > somewhere where you can fetch it should the above not work as planned. > > > > > > Thanks in advance. > > > > > > > -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com Do not let urgent matters crowd out time for investment in the future.
