Upgrading from FC4 to FC5t3 stomped on /etc/sysconfig/network and /etc/nsswitch.conf, which meant that I fell off the NIS domain and name resolution stopped working -- it seems that if your nsswitch.conf contains hosts: files nis nisplus dns then you get 'No such file or directory' when trying to look up any host name.
This on ppc64?
Nah. One of my few remaining i386 boxen. It ate /etc/hosts too.
Were rpmsave/rpmnew files generated at all? Can you attach the upgrade.log, etc.
Created attachment 125425 [details] upgrade.log Upgrade log -- it's hades.cambridge.redhat.com, so you ought to be able to poke further at it yourself if you need more.
still present in rawhide of 2006-03-12. /etc/hosts is overwritten, /etc/sysconfig/network is overwritten
Commited fix for this