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Possible to upgrade CentOS 6.5 to 7 without total rebuild?

Discussion in 'General Discussion' started by electric, Jan 25, 2017.

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  1. electric

    electric Well-Known Member

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    Hello,

    Is it possible to upgrade a cpanel server from CentOS 6.5 to CentOS 7 without rebuilding the entire server from scratch?

    If not, what is the recommended migration strategy for handling this migration?

    Thanks.
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Directly upgrading an OS to a new major version is highly discouraged, and likely to result in several issues on the system. Ideally, you should provision a new server with the new version of the OS. Then, install cPanel, configure the server, and migrate the accounts from the existing system over to it via "WHM >> Transfer Tool". Otherwise, you'd need to backup your accounts to a remote destination, reinstall the OS and cPanel, and then restore the accounts from the backup archives.

    Thank you.
     
    linux4me2 likes this.
  3. SactoBob

    SactoBob Member

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    Hard to do an full re-install and xfer as mentioned when you have 100+ sites on their own IP. How do you migrate and keep them the same IP? Temporarily put all those IPs on an interface in the down state on the new server and move like that?
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    You can setup a new IP address on the destination server, transfer the accounts, and then use the IP Migration Wizard feature after you have removed the IP address from the source server and added it to the destination server.

    Thank you.
     
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