# Migrating from mybb

**URL:** https://meta.discourse.org/t/migrating-from-mybb/25563
**Category:** Support
**Created:** [February 23, 2015, 11:12am UTC](https://meta.discourse.org/t/migrating-from-mybb/25563 "2015-02-23T11:12:46Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![elberet](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/elberet/32/122404_2.png) [@elberet](https://meta.discourse.org/u/elberet)
#### Post date: [March 12, 2015, 9:44am UTC](https://meta.discourse.org/t/migrating-from-mybb/25563/4 "2015-03-12T09:44:48Z")

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> [@dandv](#):
>
> syntax error, unexpected ‘:’

No, if `bundle` wasn’t the right program, it wouldn’t have a known to look at the Gemfile; however, I’m guessing that there are several versions of Ruby installed on the machine and bundler was using an outdated Ruby. The shorthand hash assignment notation `symbol: "value"` (instead of `:symbol => "value"`) was introduced with Ruby 1.9.

> [@dandv](#):
>
> checking for pg\_config… no

The `pg` gem requires the native PostgreSQL client library and its C header files. On Ubuntu, `sudo apt-get install libpq-dev` should install these files.

> [@dandv](#):
>
> but couldn’t install the mysql2 gem

Either install the gem with `sudo` or install it in your user’s home directory with `gem install --user-install mysql2`. Newer versions of rubygems should actually do this automatically when run by a non-root user…

> [@dandv](#):
>
> checking for mysql\_query() in -lmysqlclient… no

This time around, you were running inside Discourse’s production container. The container hosts an Ubuntu userland separate from your host machine, so packages you installed on the host - e.g. the `mysql` client library - aren’t available inside. Running `apt-get install libmysqlclient-dev` in the container should fix this.

> [@dandv](#):
>
> and Ruby is part of that problem

I tend to disagree. The problem is that Ubuntu, even in the “server” flavour, is targeting ex-point&click users. Like many other binary distributions, compiling C code against libraries installed by the system package manager is impossible unless an additional `-dev` package is installed as well. Ruby, on the other hand, assumes that it runs on a full-featured POSIX platform where it is and always has been the custom to keep required C header files alongside installed library binaries.

> [@dandv](#):
>
> Running any migration script needs to get all these dependencies installed, and I’ve been running into errors after errors.

Yes, that I fully agree with, but I have no ideas for an easy solution. Perhaps an alternative docker image that includes mysql dependencies?

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