MySQL之新建索引原則
阿新 • • 發佈:2020-11-18
一、掛載、解除安裝光碟
Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart ——W.S.Landor
來自為知筆記(Wiz)
方案一: // 1、將ISO檔案上傳到/home/目錄下 [root@localhost home]# ls CentOS-7-x86_64-DVD-1611.iso soft.bak // 2、建立掛載點 [root@localhost mnt]# mkdir centos7.3 // 3、將ISO檔案掛載到/mnt/centos7.3目錄下 [root@localhost mnt]# mount -t iso9660 -o loop /home/CentOS-7-x86_64-DVD-1611.iso /mnt/centos7.3/ // 4、檢視是否掛載成功 [root@localhost mnt]# df -h /dev/loop0 4.1G 4.1G 0 100% /mnt/centos7.3 [root@localhost centos7.3]# pwd /mnt/centos7.3 [root@localhost centos7.3]# ls CentOS_BuildTag EULA images LiveOS repodata RPM-GPG-KEY-CentOS-Testing-7 EFI GPL isolinux Packages RPM-GPG-KEY-CentOS-7 TRANS.TBL // 5、設定開機自動掛載 [root@localhost ~]# vim /etc/fstab /home/CentOS-7-x86_64-DVD-1611.iso /mnt/centos7.3 iso9660 defaults 0 0 方案二: [root@localhost ~]# echo “/dev/sr0 /mnt/cdrom iso9660 defaults 0 0” >>/etc/fstab // 注:fstab 輸入錯誤會使主機無法正常啟動而進入emergency mode緊急狀態 // 6、解除安裝 [root@localhost ~]# umount /mnt/centos7.3
二、製作YUM本地源:方案二: // 1、建立掛載點 [root@localhost ~]# mkdir /mnt/centos7.3 // 2、掛載磁碟檔案 [root@localhost ~]# mount /dev/cdrom /mnt/centos7.3/ // 3、檢視掛載是否成功 [root@localhost ~]# df -h /dev/sr0 4.1G 4.1G 0 100% /mnt/centos7.3 // 4、拷貝檔案到/home目錄下,製作本地YUM源時用 [root@localhost ~]# cd -r /mnt/centos7.3/ /home/ // 5、設定開機自啟動 [root@localhost ~]# vim /etc/fstab /dev/cdrom /mnt/centos7.3 iso9660 defaults 0 0 [root@localhost ~]# echo “/dev/cdrom /mnt/centos7.3 iso9660 defaults 0 0” >>/etc/fstab
// 1、備份原有的YUM檔案 [root@localhost ~]# cp -r /etc/yum.repos.d/ /home/soft.bak // 2、建立YUM配置檔案my.repo [root@localhost ~]# vim /etc/yum.repos.d/my.repo [CentOS7.3] // 倉庫ID 唯一標識別,不能重複 name=centos7.3 // 完整的倉庫名稱 baseurl=file:///home/centos7.3 // YUM倉庫指明的訪問路徑 gpgcheck=0 // 是否檢查完整性和來源合法性(1啟用,0禁用) enabled=1 // 是否啟用此YUM倉庫,預設啟用(1啟用,0禁用) [root@localhost ~]# yum clean all // 清除原有的YUM源 [root@localhost ~]# yum makecache // 更新YUM源 [root@localhost ~]# yum repolist all // 檢視所建立的YUM倉庫 repo id repo name status EentOS7.3 centos7.3 enabled: 3,831 [root@localhost ~]# rpm -qa |grep softwarename // 檢視sever下有無安裝該軟體 [root@localhost ~]# yum list | grep softwarenane // 檢視yum倉庫下有無該軟體 [root@localhost ~]# yum install -y software // 安裝軟體包 [root@localhost ~]# yum reinstall -y software // 重新安裝 [root@localhost ~]# yum remove -y software // 解除安裝已安裝的軟體包
Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart ——W.S.Landor
來自為知筆記(Wiz)