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Added further clarifications for offline/noupdate
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@ -63,16 +63,30 @@ sed -i -r \
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#### Migration in offline mode
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#### Migration in offline mode
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Offline mode has received minimal testing and only in the CentOS 8.5 -> Rocky 8.5
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Offline mode has received minimal testing and only for the CentOS 8.5 -> Rocky 8.5/8.6
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migration from a pristine system using a mounted CentOS 8.5 DVD ISO and a Rocky 8.5
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migration from a minimal (straight from installation or fully updated) system using a mounted
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ISO as offline repositories, mounted respectively under /mnt/centos and /mnt/rocky
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CentOS 8.5 DVD ISO and a Rocky 8.5/8.6 ISO as offline repositories, mounted respectively
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(these pathnames are hardcoded into the script).
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under /mnt/centos and /mnt/rocky - these local pathnames are hardcoded into (and forced by) the
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script for the CentOS case, while for other distros you will need to manually define local
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repo paths under /etc/yum.repos.d/ before launching the script.
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Please make sure that you do not inadvertently swap the former-distro/Rocky local repositories
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when mounting ISOs.
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Package downgrades may happen, depending on the update status of the running distro and
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on the content of the local repositories (e.g. using a Rocky 8.5 mounted ISO for offline
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updating a CentOS 8.5 with all latest updates applied before EOL).
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Note that if you are disabling pre-migration updates then you will need only the base repositories'
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metadata (repodata subdir) for the currently running distro (can be copied from original
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installation ISO).
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If you installed packages from further repos of the running distro (devel, extras, ha, powertools)
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then you will need the same repos enabled and the corresponding local repos from Rocky
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available (under /mnt/rocky/{Extras,HA,PowerTools,Devel}) before starting the migration,
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otherwise make sure that those additional repos are disabled.
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#### Migration with updating disabled
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#### Migration with pre-updating disabled
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Disabling running system update before migration has been introduced as a
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Disabling system updates before migration has been introduced as a convenience option
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convenience option for the offline conversion mode but it should be carefully
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mainly for the offline migration mode but it should be carefully tested on a non-production
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tested on a non-production system before attempting it even in offline mode.
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system before attempting it even in offline mode.
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#### Custom replacements of default repositories
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#### Custom replacements of default repositories
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