Установка мерзавца для более новой версии перестала работать на./настраивать

Я бы посоветовал установить git-1.8.3. из Репозиторий сообщества IUS

# yum info git18
Available Packages
Name        : git18
Arch        : x86_64
Version     : 1.8.3.4
Release     : 1.ius.centos6
Size        : 6.7 M
Repo        : ius
Summary     : Fast Version Control System
URL         : http://git-scm.com/
License     : GPLv2
Description : Git is a fast, scalable, distributed revision control system with an
            : unusually rich command set that provides both high-level operations
            : and full access to internals.
            :
            : The git rpm installs the core tools with minimal dependencies.  To
            : install all git packages, including tools for integrating with other
            : SCMs, install the git-all meta-package.