Public bug reported:
Binary package hint: dhcp-client
I have a set of machines running Ubuntu 9.10. These computers should
receive their hostnames via DHCP from a DHCP server. For each host, the
"option host-name" is set on the DHCP server and the lease file in
"/var/lib/dhcp3" shows me, that the hostname was received.
However, the host name won't be set, even if /etc/hostname is deleted.
It works this way with Debian.
I've figured out, that it can't work, since in /sbin/dhclient-script the
following code is used to set the hostname:
set_hostname() {
local current_hostname=$(hostname)
if [ -z "$current_hostname" -o "$current_hostname" = "(none)" ]; then
hostname "$new_host_name"
fi
}
If I delete /etc/hostname or keep it empty, Ubuntu sets the hostname
automatically to "localhost" - therefore the upper script will fail. It
now works, after changing it to:
if [ -z "$current_hostname" -o "$current_hostname" = "localhost" ]; then
Probably the way, how Ubuntu deals with a missing /etc/hostname differs
from the way how Debian does...
** Affects: dhcp3 (Ubuntu)
Importance: Undecided
Status: New
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dhclient-script ignores "option host-name" from DHCP-server
https://bugs.launchpad.net/bugs/482313
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