gdb調試時的問題：Missing separate debuginfos, use...

在CentOS6.4下使用gdb進行調試的時候，

使用bt(breaktrace)命令時，會彈出如下的提示：

頭一天提示：

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

問題沒解決，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 去安裝的時候會報如下的資訊：

Loaded plugins: fastestmirror, refresh-packagekit

Loading mirror speeds from cached hostfile

* base: mirrors.yun-idc.com

* extras: mirrors.yun-idc.com

* updates: mirrors.yun-idc.com

Checking for new repos for mirrors

No debuginfo packages available to install

使用yum來進行安裝：

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

卻提示：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.

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使用yum install glibc安裝，發現只是安裝了一些基本庫，不包含 glibc-debuginfo

後來搜尋發現需要先修改“/etc/yum.repos.d/CentOS-Debuginfo.repo”檔案的enable=1

檔案內容如下：

# 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 - Debuginfo  baseurl=http://debuginfo.centos.org/6/$basearch/  gpgcheck=1  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Debug-6  enabled=1

儲存之後，使用 debuginfo-install glibc-2.12-1.132.el6.i686 安裝，輸出如下：

Loaded plugins: fastestmirror, refresh-packagekit  Loading mirror speeds from cached hostfile   * base: mirrors.yun-idc.com   * extras: mirrors.yun-idc.com   * updates: mirrors.yun-idc.com  debug                                                                                                                                 | 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 Resolution        Dependencies 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 k  Installing for dependencies:   glibc-debuginfo-common                                 i686                        2.12-1.132.el6                        debug                        7.5 M        Transaction Summary  =============================================================================================================================================================  Install       4 Package(s)        Total size: 19 M  Total download size: 8.6 M  Installed size: 93 M  Is this ok [y/N]: y  Downloading 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_debug  Running Transaction Test  Transaction Test Succeeded  Running 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，問題解決。

第二次安裝總結：

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

2、使用 sudo yum install glibc 安裝；

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

測試，安裝成功。