Difficiles Nugae Labs

If You need to know the UUID of an ext3 filesystem (say the one on /dev/hdd1 partition), just issue the command

vol_id -u /dev/hdd1

If creating a postgres database on just upgraded Ubuntu box to the 8.10 release

postgres@somehost$ createdb -E latin1 dbname

You get the error

ERROR:  encoding LATIN1 does not match server’s locale es_ES.UTF-8
DETAIL:  The server’s LC_CTYPE setting requires encoding UTF8.

You have to follow some steps to create the database You need:

# /etc  init.d/postgresql stop
# mv /var/lib/postgresql/8.3/main /var/lib/postgresql/8.3/main.old
# mkdir /var/lib/postgresql/8.3/main
# chown postgres:postgres /var/lib/postgresql/8.3/main
# chmod 700 /var/lib/postgresql/8.3/main

Then as postgres user:

postgres@somehost $ /usr/lib/postgresql/8.3/bin/initdb -D /var/lib/postgresql/8.3/main –locale=es_ES.ISO88591 –encoding=Latin1 –lc-collate=Latin1

And finally as root:
# ln -s /etc/postgresql-common/root.crt root.crt
# ln -s /etc/ssl/certs/ssl-cert-snakeoil.pem server.crt
# ln -s /etc/ssl/private/ssl-cert-snakeoil.key server.key
# /etc  init.d/postgresql start

thanks to Julio Cesar.