[Linux] 解決 CentOS 上 yum 遇到 HTTP 404 Not Found 的問題
今天想用 yum 來查一下哪個套件包含了 stress 這支程式，
結果一直遇到 HTTP 404 錯誤：
testuser@localhost ~ $ yum provides */stress ...... http://debuginfo.centos.org/7/x86_64/repodata/3ff260768b1bb60b5bec1c543f4abb904b96c9f4-filelists.sqlite.bz2: [Errno 14] HTTP Error 404 - Not Found Trying other mirror. To address this issue please refer to the below knowledge base article https://access.redhat.com/articles/1320623 If above article doesn't help to resolve this issue please create a bug on https://bugs.centos.org/ One of the configured repositories failed (CentOS-7 - Debuginfo), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Disable the repository, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable base-debuginfo 4. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=base-debuginfo.skip_if_unavailable=true failure: repodata/3ff260768b1bb60b5bec1c543f4abb904b96c9f4-filelists.sqlite.bz2 from base-debuginfo: [Errno 256] No more mirrors to try. http://debuginfo.centos.org/7/x86_64/repodata/3ff260768b1bb60b5bec1c543f4abb904b96c9f4-filelists.sqlite.bz2: [Errno 14] HTTP Error 404 - Not Found
如果直接去下載那個 http://debuginfo.centos.org/…filelists.sqlite.bz2 的檔案，
的確是 HTTP 404 不存在，應該是那個檔案已經不存在 repo 之中了…
問題是我也沒特別想要去抓這個 debug symbol 檔…
查了一下，有人說可以下 yum clean metadata 或是 yum clean all，
不過測試的結果，下 yum clean all 之後，還是會失敗，得再加上 yum update 才行：
yum clean all sudo yum update
執行完上述兩個指令後，yum 指令就沒問題囉：
testuser@localhost ~ $ yum provides */stress ...... 1:mariadb-test-5.5.44-2.el7.centos.x86_64 : The test suite distributed with MariaD Repo : base Matched from: Filename : /usr/share/mysql-test/suite/stress 1:mariadb-test-5.5.47-1.el7_2.x86_64 : The test suite distributed with MariaD Repo : updates Matched from: Filename : /usr/share/mysql-test/suite/stress ras-utils-7.0-6.el7.x86_64 : RAS Utilities Repo : base Matched from: Filename : /opt/mce-test/mce-test-a4c080bd/groups/stress Filename : /opt/mce-test/mce-test-a4c080bd/cases/stress
參考資料：
[Errno 14] HTTP Error 404 – Not Found
How to fix yum errors on CentOS, RHEL or Fedora
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