Bug#1072526: netcfg removes DHCP ipv6 addresses after configuration finishes
Package: netcfg
Version: 1.187
When netcfg is finished configuring the interface, it will call
kill_dhcp_client() (from netcfg_activate_dhcp()), which will send
SIGTERM and then SIGKILL to dhcp6c. When dhcp6c gets a SIGTERM, it will
send a DHCP6 Release message and remove the IP from the interface, which
means that the installer will have no (public) IP anymore, and
installation from network will fail.
This happens both in an IPv6-only and in a dual-stack configuration
(though in a dual-stack configuration there still will be an IPv4
address, which means the installation will probably succeed).
A possible workaround is to switch to another console with Alt+F3 after
the DHCP6 configuration was done but before netcfg finishes and kill the
dhcp6c process with -9 (to prevent it from releasing the IP).
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