Upgrading the system from RHEL 7 to RHEL 8 using Leapp (Super Easy Working solution) 

Welcome

Welcome

Thank you very much for the support

Thanku

You are welcome

You're most welcome

Thank you

Welcome brother

Thank u very much

Glad you think so!

Well redhat has provided a complete procedure for hosts managed by Satellite. So there instead of providing an offline DVD you will have to enable foreman_plugin_leapp puppet module at satellite end.

So nice of you

Thanks and definitely we will bring next content

Well we started with taking initial downtime of 3 hrs, later with confidence we are able to close under 45-60 mins

Welcome

Well I never tested it for centos, still I believe if you migrate centos to redhat, this procedure should work over that as well.

Though I haven't tried it offline, still yes you will be requiring RH7 iso/repo for initial system update and leapp. And later RH8 repo for actual upgrade.

I believe yes, Download the ISO and provide updated binaries from there

The procedure might have changed, we will have a look and try making updated videos around that.

@@technotesofhemant8338 that would be very helpful, I was trying this on azure rhel vm ( without subscription) , was following the same which mentioned on Redhat site but unfortunately, anyways thanks for reply will on the notification so that won't miss your videos thanks for helping many

Thanks for your concern, appear that backend tar file on redhat end is not valid, I will check and update the links

@@technotesofhemant8338 thank you please update and let me know.

Thanks @LearnToEarn & @Wajid Arif, for pointing this out. We tested that and noticed that the tar files are no where available on redhat portal and their download steps are no more required as latest version of leapp already having those steps. So we have updated the knowledge doc learningtechnix.wordpress.com/2021/10/18/linux-upgrading-from-redhat-7-to-8/ with the required steps and will update the video tutorial to highlight that section soon.

Well I have not tested that, but i believe you can certainly do that

Hello Admiral, Noy yet as testing on it is still under construction

Hello dear, You can try your usual system credentials.

Well 8.x actually pertaining to which repository you configure

Yes you can exclude package using yum command

Satellite works on concept of capsule, so i assume you can make your test satellite node capsure server of main satellite server

@@technotesofhemant8338 thanks for the response.. how we can do that any doc you can refer me

By Aws hardware if I am understanding correctly your RHEL vm is running on aws infra, I do not see any issues other than network drivers compatibility maybe...

Can you share the complete logs

@@technotesofhemant8338 it is like 95% upgradation completed but after that it's going to " emergency mode with the above error ". I tried to come out from the emergency mode and reboot the VM and I observed one thing that kernel 4.18 available during reboot. I rebooted with kernel 4.18 and after booting done am unable to login the VM it's showing last login but not opening. And again I reboot with lowe kernel version am able to login. Here that DNF error didn't shown during pre-upgradation and upgradation.

Ok let me try once and get back to you on the same. Anything special with your rhel7 machine that i should keep in mind while doing testing?

@@technotesofhemant8338 this is one of the server used in my organisation, we are using proxy .

Thanks a lot

I you have cockpit enabled on redhat, you can login to webconsole provided by redhat

As per my understanding you only need internet connection to provide RHEL8 packages, if same could be done using a satellite or an ISO leapp supports providing path of repository as well.