Am 06.01.2016 um 14:03 schrieb Karanbir Singh mail-lists@karan.org:
On 06/01/16 10:27, Bruno Martins wrote:
Hi everyone,
I hope this is the best place to post this question.
I was wondering how can one upgrade from CentOS 6.7 to CentOS 7.x using redhat-upgrade-tool-cli in a scenario where you're upgrading an Hyper-V based VM.
step1 would be to yum erase anything that didnt come from CentOS-6 itself, you clearly have external repos on there. And I mean not just remove the repos, but actually remove all the content that came from other places. Leave only content from base + updates for CentOS-6 itself.
secondly you need to use the centos tools from the centos repos
IMHO, I would put this effort (the above, and post activities like verify everything e.g. sanity-checks etc.) into a new setup + service migration. A more clean procedure and better reproducible ...
-- LF