[olug] Fedora upgrade time again

[Lou Duchez]

Special thanks, by the way, to whoever instructed me in the use of 
"screen" the other year.  If you need to run a utility via SSH where 
there is a chance of losing the network connection, first run "screen" 
to invoke a session that, if you get knocked off, you can reconnect to 
by running "screen -r".  If you're going to upgrade your Linux remotely, 
do it in "screen".  You won't regret it.

More info on "screen" and the many things it can do:

https://www.linode.com/docs/networking/ssh/using-gnu-screen-to-manage-persistent-terminal-sessions


> Version 22 came out the other week, so it was upgrade time.
>
> Ever since they came out with the "fedora-upgrade" script, it's been 
> super easy.  Here's what you do:
>
> yum update
> yum install fedora-upgrade
> fedora-upgrade
> reboot
>
> And that's it.  Five out of five servers rebooted happily to Fedora 
> 22.  The only headache was that I had to run "chkconfig dhcpd on" and 
> "systemctl start dhcpd.service" on those servers that were running 
> DHCP, but that's the sort of thing that happens sometimes.
>
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