Add Source for Upgrade tool Cnetos 6.5 upgrade 7.0

1. Add the source of the upgrade tool

[Email protected] ~]# More/etc/yum.repos.d/upgradetool.repo

[UPG]

name=centos-$releasever-upgrade Tool

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

Gpgcheck=1

Enabled=1

Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-centos-6

2. Install the Upgrade tool

Yum Install Redhat-upgrade-tool preupgrade-assistant-contents

3. Import Gpg-key

sudo rpm--import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7

4, the system upgrade assessment to see if there is a risk of upgrade

View available catalogs for upgrade

Preupg-l

If the result is centos6_7, continue execution:

Preupg-s centos6_7

5. Upgrade tool (Force mandatory upgrade)

sudo centos-upgrade-tool-cli--network 7--force--instrepo=http://mirror.centos.org/centos/7/os/x86_64/

If the following error occurs, then execute under sudo centos-upgrade-tool-cli--network 7--force--instrepo=http://mirror.centos.org/centos/7/os/x86_64/

Downloading failed:errors were encountered while downloading packages.

Prompt to restart when all is done

Testing upgrade Transaction

RPM Transaction 100% [=========================================================================================== ====]

RPM Install 100% [=============================================================================================== ====]

Setting up system for upgrade

Finished. Reboot to start upgrade.

6, after the package download is complete, follow the prompts to restart the machine, waiting for the upgrade to complete.

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Add Source for Upgrade tool Cnetos 6.5 upgrade 7.0