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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-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来进行安装：
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.
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 - Debuginfo baseurl=http://debuginfo.centos.org/6/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Debug-6 enabled=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-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，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。
gdb调试时的问题Missing separate debuginfos, use: debuginfo-install glibc-XXX
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原文地址：http://www.cnblogs.com/wuchanming/p/4492388.html
