1、挂载yum仓库、并保存到本地

1.1 新建目录

[root@localhost ~]# mkdir /iso

1.2 临时挂载仓库到/mnt

[root@localhost ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 写保护，将以只读方式挂载

1.3 保存到本地

[root@localhost ~]# cp -r /mnt/* /iso/
[root@localhost ~]# ls -lh /iso/
总用量 320K
-rw-r--r--. 1 root root   14 8月  25 19:25 CentOS_BuildTag
drwxr-xr-x. 3 root root   35 8月  25 19:25 EFI
-rw-r--r--. 1 root root  227 8月  25 19:25 EULA
-rw-r--r--. 1 root root  18K 8月  25 19:25 GPL
drwxr-xr-x. 3 root root   57 8月  25 19:25 images
drwxr-xr-x. 2 root root  198 8月  25 19:25 isolinux
drwxr-xr-x. 2 root root   43 8月  25 19:26 LiveOS
drwxr-xr-x. 2 root root 216K 8月  25 19:27 Packages
drwxr-xr-x. 2 root root 4.0K 8月  25 19:27 repodata
-rw-r--r--. 1 root root 1.7K 8月  25 19:27 RPM-GPG-KEY-CentOS-7
-rw-r--r--. 1 root root 1.7K 8月  25 19:27 RPM-GPG-KEY-CentOS-Testing-7
-r--r--r--. 1 root root 2.9K 8月  25 19:27 TRANS.TBL

2、配置文件

配置文件目录在：/etc/yum.repos.d/下
在目录下新建以.repo结尾的文档
vim /etc/yum.repos.d/yum.repo

2.1 写入配置文件

[root@localhost ~]# vim /etc/yum.repos.d/yum.repo[iso]                      #yum源的名字
name=CentOS7.iso           #描述信息
baseurl=file:///iso            #yum源的本地镜像目录
enabled=1                  #yum源是否启用 1-启用 0-不启用
gpgcheck=0                 #安全检查是否启用 1-启用 0-不启用

3、清理yum仓库缓存

[root@localhost ~]# yum clean all
已加载插件：fastestmirror, langpacks
正在清理软件源： base extras iso updates
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors

4、列出yum的信息

[root@localhost ~]# yum repolist
已加载插件：fastestmirror, langpacks
Determining fastest mirrors
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"
Loading mirror speeds from cached hostfile
Loading mirror speeds from cached hostfile
Loading mirror speeds from cached hostfile
Loading mirror speeds from cached hostfile
源标识                                  源名称                                     状态
base/7/x86_64                           CentOS-7 - Base                            0
extras/7/x86_64                         CentOS-7 - Extras                          0
iso                                     CentOS7.iso                                0
updates/7/x86_64                        CentOS-7 - Updates                         0
repolist: 0

[root@localhost ~]# yum list
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"One of the configured repositories failed (未知),and yum doesn't have enough cached data to continue. At this point the onlysafe 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 workingupstream. This is most often useful if you are using a newerdistribution release than is supported by the repository (and thepackages for the previous distribution release still work).3. Run the command with the repository temporarily disabledyum --disablerepo=<repoid> ...4. Disable the repository permanently, so yum won't use it by default. Yumwill then just ignore the repository until you permanently enable itagain or use --enablerepo for temporary usage:yum-config-manager --disable <repoid>orsubscription-manager repos --disable=<repoid>5. 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 muchslower). If it is a very temporary problem though, this is often a nicecompromise:yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=trueCannot find a valid baseurl for repo: base/7/x86_64

理论上是已经搭建完成了
但是在列表上看不到仓库源内容

5、常见错误解决

5.1 关于第4步无法列出yum

原因是没有打开网络

[root@localhost ~]# ifconfig | head -3
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500ether 00:0c:29:8a:**:**  txqueuelen 1000  (Ethernet)RX packets 917  bytes 60053 (58.6 KiB)

解决方法

[root@localhost ~]# nmtui选中网卡---回车---启动网络

[root@localhost ~]# ifconfig | head -3
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500inet 192.168.***.***  netmask 255.255.255.0  broadcast 192.168.***.***inet6 fe80::d404:cd4:6938:****  prefixlen 64  scopeid 0x20<link>

6、正常列出yum信息

[root@localhost ~]# yum repolist
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile* base: mirrors.163.com* extras: mirrors.aliyun.com* updates: mirrors.163.com
base                                                            | 3.6 kB  00:00:00
extras                                                          | 2.9 kB  00:00:00
iso                                                             | 3.6 kB  00:00:00
updates                                                         | 2.9 kB  00:00:00
(1/6): base/7/x86_64/group_gz                                   | 153 kB  00:00:00
(2/6): iso/group_gz                                             | 166 kB  00:00:00
(3/6): iso/primary_db                                           | 3.1 MB  00:00:00
(4/6): extras/7/x86_64/primary_db                               | 242 kB  00:00:01
(5/6): updates/7/x86_64/primary_db                              | 9.6 MB  00:00:02
(6/6): base/7/x86_64/primary_db                                 | 6.1 MB  00:00:09
源标识                                 源名称                                    状态
base/7/x86_64                          CentOS-7 - Base                           10,072
extras/7/x86_64                        CentOS-7 - Extras                            498
iso                                    CentOS7.iso                                3,971
updates/7/x86_64                       CentOS-7 - Updates                         2,579
repolist: 17,120

[root@localhost ~]# yum list
sysvinit-tools.x86_64                        2.88-14.dsf.el7                  @anaconda
taglib.x86_64                                1.8-7.20130218git.el7            @anaconda
tagsoup.noarch                               1.2.1-8.el7                      @anaconda
tar.x86_64                                   2:1.26-34.el7                    @anaconda
tcp_wrappers.x86_64                          7.6-77.el7                       @anaconda
tcp_wrappers-libs.x86_64                     7.6-77.el7                       @anaconda
......

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Linux搭建本地yum仓库

1、挂载yum仓库、并保存到本地

1.1 新建目录

1.2 临时挂载仓库到/mnt

1.3 保存到本地

2、配置文件

2.1 写入配置文件

3、清理yum仓库缓存

4、列出yum的信息

5、常见错误解决

5.1 关于第4步无法列出yum

6、正常列出yum信息

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