I followed this https://fedoraproject.org/wiki/Upgrading_Fedora_using_yum#Fedora_17_-.3E_Fedora_18 guide to upgrade my Fedora 17 to 18.All was fine until I issued su -c 'yum --releasever=18 --disableplugin=presto distro-sync -y'. My PuTTY disconnected. Obviously it is because Cleanup: openssh-server-5.9p1-22.fc17.x86_64 306/574How can I skip OpenSSH during the distro-sync so my upgrade works fine?
How to Upgrade Fedora 17 to 18 Remotely via SSH
fedora
Install a separate ssh daemon - either another copy of OpenSSH or e.g. Dropbear - into the system, possibly into /opt or $HOME, run it on a different port. Also run the update in a virtual terminal multiplexer (tmux, screen..) to prevent troubles resulting from losing/dropping the connection halfway through the upgrade.Using statically linked binaries for both the extra ssh daemon and the virtual terminal multiplexer would make sense as well in this case.