We are having some problems when trying to upgrade PostgreSQL 9.4. to 9.6

[tabdoelhafiezkhan]

Hello tianon,

Thank you for the image. We hope you can help us with this question: We are trying to upgrade from postgres 9.4 to 9.6, but the docker hub default images do not have the postgres version in there path $PGDATA. So it's /var/lib/postgresql/data and not /var/lib/postgresql/9.4/data.

We are getting these errors when trying the upgrade:

TEST1:

[tiabd@dockerbuild tmp]$ docker run --rm
-v /tmp/9.4:/var/lib/postgresql/data
-v /tmp/9.6:/var/lib/postgresql/data
tianon/postgres-upgrade:9.4-to-9.6
docker: Error response from daemon: Duplicate mount point '/var/lib/postgresql/data'.
See 'docker run --help'.
[tiabd@dockerbuild tmp]$

TEST2:

[tiabd@dockerbuild tmp]$ docker run --rm \

-v /tmp/9.4/data:/var/lib/postgresql/9.4/data \
-v /tmp/9.6/data:/var/lib/postgresql/9.6/data \
tianon/postgres-upgrade:9.4-to-9.6

...
...
initdb: directory "/var/lib/postgresql/9.6/data" exists but is not empty
If you want to create a new database system, either remove or empty
the directory "/var/lib/postgresql/9.6/data" or run initdb
with an argument other than "/var/lib/postgresql/9.6/data".
Failure, exiting

TEST3:

[tiabd@dockerbuild tmp]$ docker run --rm -v /tmp/9.4:/var/lib/postgresql/9.4/data -v /tmp/9.6:/var/lib/postgresql/9.6/data tianon/postgres-upgrade:9.4-to-9.6
...
check for "/var/lib/postgresql/9.4/data/base" failed: No such file or directory

Failure, exiting

Hope you can help us further.

Kind regards,
Tim

[tianon]

Where is the 9.4 data currently stored on the host (precise path), and where do you want the 9.6 data to be stored after the upgrade?

[tabdoelhafiezkhan]

hello tianon, Thanks for the quick reply. We managed to do the upgrade. These where some of the issues: 1. Our environment did not seem to be able to handle the quotes in ex: OLD='9.4' 2. We forgot to run a container on the mountpount / volume 3. We where a bit confused with this in your documentation: $ docker run --rm \ -v /mnt/bigdrive/postgresql-9.4:/var/lib/postgresql/9.4/data \ -v /mnt/bigdrive/postgresql-9.5:/var/lib/postgresql/9.5/data \ tianon/postgres-upgrade:9.4-to-9.5 ... (which assumes that your previous postgres:9.4 instance was running with -v /mnt/bigdrive/postgresql-9.4:/var/lib/postgresql/data, and your new postgres:9.5 instance will run with -v /mnt/bigdrive/postgresql-9.5:/var/lib/postgresql/data) Kind regards, Tim 2017-05-30 8:10 GMT+02:00 Tianon Gravi <notifications@github.com>:

…

Where is the 9.4 data currently stored on the host (precise path), and where do you want the 9.6 data to be stored after the upgrade? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ARcBOh50oT4zIJpuDh0Im_HmVGgfscC2ks5r-7LDgaJpZM4NpKnf> .