在CentOS6.4下使用gdb进行调试的时候，

使用bt(breaktrace)命令时，会弹出如下的提示：

头一天提示：

Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.107.el6.i686

问题没解决，第二天提示：

Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.132.el6.i686

但是直接按提示使用 debuginfo-install glibc-2.12-1.132.el6.i686 去安装的时候会报如下的信息：

Loaded plugins: fastestmirror, refresh-packagekitLoading mirror speeds from cached hostfile * base: mirrors.yun-idc.com * extras: mirrors.yun-idc.com * updates: mirrors.yun-idc.comChecking for new repos for mirrorsNo debuginfo packages available to install

使用yum来进行安装：

 sudo yum --nogpgcheck --enablerepo=debug install glibc-debuginfo

却提示：Error Downloading Packages:  glibc-debuginfo-common-2.12-1.132.el6.i686: failure: glibc-debuginfo-common-2.12-1.132.el6.i686.rpm from debug: [Errno 256] No more mirrors to try.

使用yum install glibc安装，发现只是安装了一些基本库，不包含 glibc-debuginfo

后来搜索发现需要先修改“/etc/yum.repos.d/CentOS-Debuginfo.repo”文件的enable=1

文件内容如下：

# CentOS-Debug.repo## The mirror system uses the connecting IP address of the client and the# update status of each mirror to pick mirrors that are updated to and# geographically close to the client.  You should use this for CentOS updates# unless you are manually picking other mirrors.## All debug packages from all the various CentOS-5 releases# are merged into a single repo, split by BaseArch## Note: packages in the debuginfo repo are currently not signed#[debug]name=CentOS-6 - Debuginfobaseurl=http://debuginfo.centos.org/6/$basearch/gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Debug-6enabled=1

保存之后，使用 debuginfo-install glibc-2.12-1.132.el6.i686 安装，输出如下：

Loaded plugins: fastestmirror, refresh-packagekitLoading mirror speeds from cached hostfile * base: mirrors.yun-idc.com * extras: mirrors.yun-idc.com * updates: mirrors.yun-idc.comdebug                                                                                                                                 | 2.5 kB     00:00     Checking for new repos for mirrors--> Running transaction check---> Package glibc-debuginfo.i686 0:2.12-1.132.el6 will be installed--> Processing Dependency: glibc-debuginfo-common = 2.12-1.132.el6 for package: glibc-debuginfo-2.12-1.132.el6.i686---> Package nss-softokn-debuginfo.i686 0:3.12.9-11.el6 will be installed---> Package yum-plugin-auto-update-debug-info.noarch 0:1.1.30-17.el6_5 will be installed--> Running transaction check---> Package glibc-debuginfo-common.i686 0:2.12-1.132.el6 will be installed--> Finished Dependency ResolutionDependencies Resolved============================================================================================================================================================= Package                                                Arch                        Version                               Repository                    Size=============================================================================================================================================================Installing: glibc-debuginfo                                        i686                        2.12-1.132.el6                        debug                         10 M nss-softokn-debuginfo                                  i686                        3.12.9-11.el6                         debug                        1.0 M yum-plugin-auto-update-debug-info                      noarch                      1.1.30-17.el6_5                       updates                       22 kInstalling for dependencies: glibc-debuginfo-common                                 i686                        2.12-1.132.el6                        debug                        7.5 MTransaction Summary=============================================================================================================================================================Install       4 Package(s)Total size: 19 MTotal download size: 8.6 MInstalled size: 93 MIs this ok [y/N]: yDownloading Packages:(1/3): glibc-debuginfo-common-2.12-1.132.el6.i686.rpm                                                                                 | 7.5 MB     12:03     (2/3): nss-softokn-debuginfo-3.12.9-11.el6.i686.rpm                                                                                   | 1.0 MB     01:56     (3/3): yum-plugin-auto-update-debug-info-1.1.30-17.el6_5.noarch.rpm                                                                   |  22 kB     00:00     -------------------------------------------------------------------------------------------------------------------------------------------------------------Total                                                                                                                         10 kB/s | 8.6 MB     14:10     Running rpm_check_debugRunning Transaction TestTransaction Test SucceededRunning Transaction  Installing : glibc-debuginfo-common-2.12-1.132.el6.i686                                                                                                1/4   Installing : glibc-debuginfo-2.12-1.132.el6.i686                                                                                                       2/4   Installing : yum-plugin-auto-update-debug-info-1.1.30-17.el6_5.noarch                                                                                  3/4   Installing : nss-softokn-debuginfo-3.12.9-11.el6.i686                                                                                                  4/4   Verifying  : glibc-debuginfo-common-2.12-1.132.el6.i686                                                                                                1/4   Verifying  : nss-softokn-debuginfo-3.12.9-11.el6.i686                                                                                                  2/4   Verifying  : glibc-debuginfo-2.12-1.132.el6.i686                                                                                                       3/4   Verifying  : yum-plugin-auto-update-debug-info-1.1.30-17.el6_5.noarch                                                                                  4/4 Installed:  glibc-debuginfo.i686 0:2.12-1.132.el6      nss-softokn-debuginfo.i686 0:3.12.9-11.el6      yum-plugin-auto-update-debug-info.noarch 0:1.1.30-17.el6_5     Dependency Installed:  glibc-debuginfo-common.i686 0:2.12-1.132.el6                                                                                                               Complete!

OK，问题解决。

第二次安装总结：

1、需要先修改“/etc/yum.repos.d/CentOS-Debuginfo.repo”文件的enable=1；

2、使用 sudo yum install glibc 安装；

3、使用 debuginfo-install glibc-2.12-1.132.el6.i686 安装。

测试，安装成功。