Thread: Upgrading from V11 to V12 on Debian install

I have several machines that have version 11 instances on them. These are
all Debian or Ubuntu machines. All of them are pointed to the Postgres
repositories fro the Postgres binaries

deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main

dpkg -l shows:

ii  postgresql-11                         11.6-1.pgdg100+1
ii  postgresql-12                         12.1-1.pgdg100+1
ii  postgresql-client-11                  11.6-1.pgdg100+1
ii  postgresql-client-12                  12.1-1.pgdg100+1   
ii  postgresql-client-common              210.pgdg100+1  
ii  postgresql-common                       210.pgdg100+1 
ii  postgresql-contrib                       12+210.pgdg100+1    
ii  postgresql-server-dev-11               11.6-1.pgdg100+1      


Googling around, I found this link:

https://scottlinux.com/2015/11/14/upgrade-postgresql-on-debian-jessie-with-pg_upgradecluster/

I plan on upgrading one of the test instances right away. Is the
information in this link the best way to do this in a Debian environment? I
did look at the  pg_upgrade documentation, and it looks like I could really
make a mess if I misunderstand even one step.



 
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                        -- Benjamin Franklin

On 12/2/19 11:28 AM, stan wrote:
> I have several machines that have version 11 instances on them. These are
> all Debian or Ubuntu machines. All of them are pointed to the Postgres
> repositories fro the Postgres binaries
> 
> deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main
> 
> dpkg -l shows:
> 
> ii  postgresql-11                         11.6-1.pgdg100+1
> ii  postgresql-12                         12.1-1.pgdg100+1
> ii  postgresql-client-11                  11.6-1.pgdg100+1
> ii  postgresql-client-12                  12.1-1.pgdg100+1
> ii  postgresql-client-common              210.pgdg100+1
> ii  postgresql-common                       210.pgdg100+1
> ii  postgresql-contrib                       12+210.pgdg100+1
> ii  postgresql-server-dev-11               11.6-1.pgdg100+1
> 
> 
> Googling around, I found this link:
> 
> https://scottlinux.com/2015/11/14/upgrade-postgresql-on-debian-jessie-with-pg_upgradecluster/
> 
> I plan on upgrading one of the test instances right away. Is the
> information in this link the best way to do this in a Debian environment? I
> did look at the  pg_upgrade documentation, and it looks like I could really
> make a mess if I misunderstand even one step.

Yes as pointed out previously:

https://www.postgresql.org/message-id/20191107161401.GA24371@hjp.at

For more info:

man pg_upgradecluster

> 
> 
> 
>   
> "They that would give up essential liberty for temporary safety deserve
> neither liberty nor safety."
>                         -- Benjamin Franklin
> 
> 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com