How to upgrade CentOS 6.8 x64 to Cent OS 7.6 x64
I am using CentOS 6.8 x64 and vesta CP. Now I need to update my OS to Cent OS 7.6 x64 as I need to update my PHP version.
Now, Is there any way to upgrade *CentOS 6.8 x64 to Cent OS 7.6 x64 * without losing any files or settings?
Or I have to do it manually?
Please be noted that I have around 5+ sites hosted in my Current system.
Please suggest to me a possible solution so that I can upgrade CentOS 6.8 x64 to Cent OS 7.6 x64
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