Hmm, Jean-Baptiste, could you give a bit more details on how that system was initially installed?
My understanding is that upgrade works fine if it's a desktop install with Network Manager or if it was installed with debian-installer and had a static config.
If you installed the machine using DHCP in d-i, then manually altered the configuration in /etc/network/interfaces to be static but without adding the dns-nameservers and dns-search options that d-i would have added, it's indeed a bug but it's far from being Critical (as it's not something that'd break with a default install).
Hmm, Jean-Baptiste, could you give a bit more details on how that system was initially installed?
My understanding is that upgrade works fine if it's a desktop install with Network Manager or if it was installed with debian-installer and had a static config.
If you installed the machine using DHCP in d-i, then manually altered the configuration in /etc/network/ interfaces to be static but without adding the dns-nameservers and dns-search options that d-i would have added, it's indeed a bug but it's far from being Critical (as it's not something that'd break with a default install).