CentOS6.4升級(jí)到7.0的步驟-創(chuàng)新互聯(lián)

下面云服務(wù)器網(wǎng)絡(luò)為大家演示一下CentOS6.4升級(jí)到7.0的詳細(xì)操作步驟：

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第一步：

1]配置軟件源

# 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]安裝軟件工具

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

[3]升級(jí)前檢查潛在問(wèn)題

# 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

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]開(kāi)始升級(jí)

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

正常的運(yùn)行以上命令可以升級(jí)完成；

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

這強(qiáng)制的就顯得有點(diǎn)不友好了，生產(chǎn)環(huán)境慎用；

更新到這一步：

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]升級(jí)完成:

# cat /etc/redhat-release

CentOS Linux release 7.0.1406 (Core)

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