this post was submitted on 22 Oct 2023
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Trouble upgrading from centos 7 to almalinux, where to get affordable help upgrading/migrating? (alien.top)
submitted 11 months ago by [email protected] to c/[email protected]
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I tried to use the elevation upgrade script from almalinux, however it fails. it ends with the screenshot i attached, emergency mode. and I was then required to roll back a snapshot. My current host was so kind to take a look as well, also try to upgrade it themselfs, but they couldn't achieve it either on a quick try (i saw them through vnc also doing a drive repair)

I want to upgrade to almalinux 9 (through 8 then as required), so where does one get affordable and truthworthy help for these things, for the not-so-techy people like myself?

https://preview.redd.it/s7otwnb8nsvb1.png?width=1059&format=png&auto=webp&s=254feec75f4b9634525a503521baeeb0c6ce6158

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[–] [email protected] 1 points 11 months ago (1 children)

Start with /r/LinuxQuestiond maybe? This here definitely is the wrong place.

[–] [email protected] 1 points 11 months ago (1 children)

Thanks, there is also /r/sysadmin and probably more where to ask, but i figured this place would also make sense. Its about where to get paid help for upgrades etc.

[–] [email protected] 1 points 11 months ago (1 children)

/r/sysadmin is also a terrible choice but go ahead, good luck.

[–] [email protected] 1 points 11 months ago

at least thanks for the good luck wishes then! :)

[–] [email protected] 1 points 11 months ago

You can also join the AlmaLinux chat and ask in the general channel, or in the migration channel.

[–] [email protected] 1 points 11 months ago (1 children)

I know this is probably not the answer you're looking for, but at my work we never even do in-place upgrades from one version of rhel to the next. Always a fresh install on a new server, then migration of each service.

If that sounds painful, it could be a good opportunity to dabble in some configuration management (like Ansible) or at least thorough build docs of how to get a bare server into the state you want.

The steps would basically be:

  1. Fresh OS install on new server
  2. Install each application and get it running.
  3. One by one, stop the application, copy data (files and/or databases) from old server, start application, troubleshoot until it's happy
  4. Switch DNS to new server
  5. Decommission old server

It's a bit harder if it's a physical machine and you can't spin up a new one simultaneously. With that, you just have to make a backup to an external drive and schedule some downtime.

[–] [email protected] 1 points 11 months ago

"Some" downtime. Probably multiple weeks 😅

[–] [email protected] 1 points 11 months ago

Are the mods even active anymore? So many non-self hosting related questions....

[–] [email protected] 1 points 11 months ago

Where does one get help? IT consultants. Where does one get affordable help? Dunno, I don't use IT consultants.

Is there a particular reason you need to upgrade rather than back up your files, do a clean install of Alma, and then rsync your files back to the new host?

That's what I'd do. I also run a lot of docker containers, so I am not worried about nuking a system — I can rebuild in minutes on a new VM.

[–] [email protected] 1 points 11 months ago

You should the share the contents of error file with whoever you're asking help from.