Well the time has come to bite the bullet: I got CentOS 8.3 installed, updated the machine and rolled it over to 8.4, installed KDE and got that working, and finally added various packages to CentOS 8.4 that we need. With the exception of backing up the machine, ( CentOS 8.4) which will be the final…

You can mark this [SOLVED ???] Using the information that jlehtone provided Boot Loader Specification I went into /boot/loader/entries and edited all the .conf files and changed all the entries that said CentOS 8 and to read Rocky Linux 8.4 and also changed the one line in each file that said cent…

OK using the old stagecraft motto of “Measure twice and cut once”. Are you saying all I need to do is run the script, "./migrate2rocky.sh?!? do I need to append either or the -r or -V to the command? Do I have to first unmount the drive before I run the script or can I actually run the script while …

Try to follow this manual: https://docs.rockylinux.org/guides/migrate2rocky/

Just have the machine booted as normal, the script goes away changes the repos, removes CentOS specifics and installs the rocky equivalents. The only thing to be wary of is the Rocky Linux doesn’t support Secure Boot yet, so you will need to turn that off in your BIOS/VM configuration before the scr…

Thanks Mark, Given that I don’t run Windows, I don’t run Secure Boot. No problem there. When you say, “Just have the machine booted as normal” I assume that to mean at the CLI I simply type ./migrate2rocky.sh. Should I append the “-r” option or not? If all I need to do is type that simple command…

Secure boot isn’t something that comes with Windows. It is a UEFI feature that only permits the loading of signed boot loaders / UEFI drivers. You may need to disable this feature in your UEFI settings (press F2 or ESC or whatever during boot to get to these). Yes, migrate2rocky needs the -r flag. …

Thank you Brian for the heads up. I probably still don’t have to worry about it – or at least that is my HOPE – as my setup is running in straight LEGACY mode, and UEFI – as I understand it – is needed only if you are running Windows. Now IF UEFI – even though I am not using it – still needs to be…

@desercat No, UEFI is not just for Windows. Fedora uses UEFI and this is definitely not Windows. It also installs on a system with secure boot enabled. Legacy boot, is when a system would use the MBR, so you would not have a /boot/efi directory on that kind of system. When UEFI is enabled, inste…

Don’t panic about the SecureBoot stuff, the migration script checks for it being turned on and will stop running the migration before anything is changed and tell you if you have it enabled (that’s how I caught it the first time!), so you won’t hose anything. Mark.

Hi Mark, Ah!!! [Sigh of relief]. Nice to know that where I’m heading someone else has gone before. CentOS 8.4 is now fully backed up. So sometime either tomorrow or Saturday I jump!! I now also have an idea where to look if it stops in its tracks. I am just hoping I will have no issues and all goe…

HELP! Need Instructions for Converting CentOS 8.4 to Rocky Linux 8.4

Rocky Linux Help & Support

GZU August 11, 2021, 4:57am 2

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https://forums.rockylinux.org/t/transition-from-centos-to-rocky/389/31

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HELP! Need Instructions for Converting CentOS 8.4 to Rocky Linux 8.4

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