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  • 您所在的位置 : 首页 > 新闻公告 > CentOS6.4 升级到7.0的步骤

    CentOS6.4 升级到7.0的步骤

    CentOS6.4 升级到7.0的步骤【艾娜小编】
    下面为大家演示一下CentOS6.4升级到7.0的详细操作步骤: 

    第一步:

    1]配置软件源

      

    # vim /etc/yum.repos.d/upgrade.repo

    [upgrade]

    name=upgrade

    baseurl=http://dev.centos.org/centos/6/upg/x86_64/

    enable=1

    gpgcheck=0

    [2]安装软件工具

      

    yum -y install preupgrade-assistant-contents redhat-upgrade-tool preupgrade-assistant

    [3]升级前检查潜在问题

      

    # preupg

    Preupg tool doesn't do the actual upgrade.

    Please ensure you have backed up your system and/or data in the event of a failed upgrade

    that would require a full re-install of the system from installation media.Do you want to continue? y/n

    y

    Gathering logs used by preupgrade assistant:

    All installed packages : 01/10 ...finished (time 00:00s)

    All changed files      : 02/10 ...finished (time 00:40s)

    Changed config files   : 03/10 ...finished (time 00:00s)

    All users              : 04/10 ...finished (time 00:00s)

    All groups             : 05/10 ...finished (time 00:00s)

    Service statuses       : 06/10 ...finished (time 00:00s)

    All installed files    : 07/10 ...finished (time 00:01s)

    All local files        : 08/10 ...finished (time 00:03s)

    All executable files   : 09/10 ...finished (time 00:00s)

    RedHat signed packages : 10/10 ...finished (time 00:00s)

    Assessment of the system, running checks / SCE scripts:

    001/100 ...done    (Configuration Files to Review)

    002/100 ...done    (File Lists for Manual Migration)

    003/100 ...done    (Bacula Backup Software)

    004/100 ...done    (MySQL configuration)

    005/100 ...done    (Migration of the MySQL data stack)

    006/100 ...done    (General changes in default MySQL implementation)

    007/100 ...done    (PostgreSQL upgrade content)

    Assessment finished (time 00:00s)

    Result table with checks and their results for main contents:

    ------------------------------------------------------------------------------------------

    |System kickstart                                                        |notapplicable  |

    |YUM                                                                     |notapplicable  |

    |Check for usage of dangerous range of UID/GIDs                          |notapplicable  |

    |Incorrect usage of reserved UID/GIDs                                    |notapplicable  |

    |NIS ypbind config files back-up                                         |notapplicable  |

    |NIS Makefile back-up                                                    |notapplicable  |

    |NIS server maps check                                                   |notapplicable  |

    |NIS server MAXUID and MAXGID limits check                               |notapplicable  |

    |NIS server config file back-up                                          |notapplicable  |

    ------------------------------------------------------------------------------------------

    Tarball with results is stored here /root/preupgrade-results/preupg_results-140716022514.tar.gz .

    The latest assessment is stored in directory /root/preupgrade .

    Upload results to UI by command:

    e.g. preupg -u http://127.0.0.1:8099/submit/ -r /root/preupgrade-results/preupg_results-*.tar.gz .

    [4]开始升级

      

    # rpm --import http://centos.excellmedia.net/7.0.1406/os/x86_64/RPM-GPG-KEY-CentOS-7

    正常的运行以上命令可以升级完成;

      

    # redhat-upgrade-tool --network 7.0 --instrepo http://centos.excellmedia.net/7.0.1406/os/x86_64/

    这强制的就显得有点不友好了,生产环境慎用;

    更新到这一步:

      

    setting up repos...

    .treeinfo                                                                                                | 1.1 kB     00:00

    getting boot images...

    vmlinuz-redhat-upgrade-tool                                                                              | 4.7 MB     01:38

    initramfs-redhat-upgrade-tool.img                                                                        |  32 MB     14:45

    setting up update...

    finding updates 100% [=====================================================================================================]

    (1/272): acl-2.2.51-12.el7.x86_64.rpm                                                                    |  81 kB     00:00

    (2/272): attr-2.4.46-12.el7.x86_64.rpm                                                                   |  66 kB     00:00

    (3/272): audit-2.3.3-4.el7.x86_64.rpm                                                                    | 223 kB     00:01

    (4/272): audit-libs-2.3.3-4.el7.x86_64.rpm                                                               |  77 kB     00:00

    (5/272): authconfig-6.2.8-8.el7.x86_64.rpm                                                               | 399 kB     00:08

    (6/272): basesystem-10.0-7.el7.centos.noarch.rpm                                                         | 5.0 kB     00:00

    (7/272): bash-4.2.45-5.el7.x86_64.rpm                                                                    | 1.0 MB     00:17

    (270/272): yum-plugin-fastestmirror-1.1.31-24.el7.noarch.rpm                                             |  28 kB     00:03

    (271/272): zlib-1.2.7-13.el7.x86_64.rpm                                                                  |  89 kB     00:06

    (272/272): zlib-devel-1.2.7-13.el7.x86_64.rpm                                                            |  49 kB     00:01

     

    setting up system for upgrade

    Finished. Reboot to start upgrade.

      

    # reboot

    [5]升级完成:

      

    # cat /etc/redhat-release 

    CentOS Linux release 7.0.1406 (Core)


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