[SOLVED] Help configuring unixodbc and myodbc

Question

Hi,
I would like to setup the odbc driver for my mariadb database.
As the version of myodbc in the archive causes a segmentation fault error (there are other posts about it in the forum), and I couldn't use
Arch Rollback Machine, I downloaded the binary for an older version that works from mysql website, extracted the content in my home and created  symbolic links to libmyodbc5a.so and libmyodbc5w.so into /usr/lib.
I configured /etc/odcinst.ini to use /usr/lib/libmyodbc5w.so and created a connection (called mariadb) in ~/.odbc.ini.
Now whenever I try to test the connection using isql -v mariadb I get the following error:
[01000][unixODBC][Driver Manager]Can't open lib '/usr/lib/libmyodbc5.so' : file not found
Of course the file is there and accessible. How can I fix this?
Thanks a lot everybody for the help,
Cheers,
Luca
[note] a step by step list of instructions can be found later in the post: https://bbs.archlinux.org/viewtopic.php … 9#p1464079
Last edited by lucacerone (2014-10-08 22:02:01)

Answer 1

For completeness here is the procedure I followed
(I assumed you already have installed mariadb and started the mysqld service)
1. install unixodbc using pacman
2. use odbcinst -j to know the paths that need to be configured, on my laptop this means /etc/odbcinst.ini (this will contain the systemwide settings of the drivers)
and ~/.odbc.ini  (contains the settings of specific connections)
3. download the odbc connector version 5.2.7 binary from mysql website (the 64bit version is here: http://dev.mysql.com/downloads/file.php?id=452109
4. extract the archive in a location of your choice
5. (you need sudo for this) link the content of <myodbc5.2.7_connector_folder>/lib into /usr/lib, for my laptop this is:
sudo ln -s /home/luca/mysql-connector-odbc-5.2.7-linux-glibc2.5-x86-64bit/lib/*.so /usr/lib/
5b. create the link /usr/lib/libmyodbc.so to /usr/lib/libmyodbc5w.so
sudo ln -s /usr/lib/libmyodbc5w.so /usr/lib/libmyodbc.so
6. create the other links:
sudo ln -s /usr/lib/libodbcinst.so.2 /usr/lib/libodbcinst.so.1
sudo ln -s /usr/lib/libodbcinst.so.2 /usr/lib/libodbcinst.so
#eventually use ldd on the libodbc* and libmyodbc* libraries to check whether some library is missing. If you have the library installed, but the naming is wrong
#(e.g. libodbcinst.so.2.0 instead of libodbcinst.so.1)
#you have to create a symbolic link to the installed version with the name required by the library.
7. Check the path of mysql socket in /etc/mysql/my.cnf
the default value is socket  = /run/mysqld/mysqld.sock
8. Create the file /etc/odbcinst.ini and place the following content in it:
# this has to be copied / symlinked in /etc/
[MySQL]
Description = ODBC Driver for MySQL
Driver = /usr/lib/libmyodbc.so
#Setup=/usr/lib/libmyodbc5S.so # i have found this line in several tutorial, but this is actually not required.
FileUsage = 1
9. Create the file ~/.odbc.ini with the following content:
[mariadb] # mariadb is the name of the db connection
Description     = MySQL database test
Driver          = MySQL # this tells unixodb to use the driver set in
User = luca # your mariadb user here...
Password = <your_user_password>
Socket = /run/mysqld/mysqld.sock # this is the value set in /etc/mysql/my.cnf
Server          = localhost # or whatever ip
Port            = 3306 #or whatever port
10. test the connection using
isql -v mariadb
The ODBC driver and connection should now work seamlessly.
Let me know if you have better solutions!!!
Last edited by lucacerone (2014-10-08 22:04:04)