[pkg-dhcp-devel] Bug#792854: isc-dhcp-client: Dhclient fails to set hostname

[Niki Kovacs]

Package: isc-dhcp-client
Version: 4.3.1-6
Severity: normal

Hi,

I installed two minimal Debian Jessie 8.0 systems on two spare sandbox PCs in my office. I installed
Debian 8.0 32-bit on one PC, and Debian 8.0 64-bit on the other one. 

Since I have a local Dnsmasq server, I didn't want to provide any "hardcoded" hostname information.

/etc/hostname contains only 'localhost', and similarly, /etc/hosts only has information about 
'localhost' and 'localhost.localdomain'.

On the 64-bit client, the hostname gets set correctly by the server. After booting, I login to the 
machine, and 'hostname' returns 'raymonde' as expected. 'hostname --fqdn' returns
'raymonde.microlinux.lan'. 

On the 32-bit client (which has the exact same setup), 'hostname --fqdn' should return 
'bernadette.microlinux.lan'. Unfortunately, all I get here is 'localhost.localdomain'. 

Just to be on the safe side, I performed a fresh installation of a clean Debian system on each of
these client machines, one with 32-bit, one with 64-bit. The same problem arises again. 

So it looks like this is a bug in dhclient which only affects 32-bit systems.

Cheers from the sunny South of France,

Niki Kovacs

-- System Information:
Debian Release: 8.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 3.16.0-4-686-pae (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages isc-dhcp-client depends on:
ii  debianutils       4.4+b1
ii  iproute2          3.16.0-2
ii  isc-dhcp-common   4.3.1-6
ii  libc6             2.19-18
ii  libdns-export100  1:9.9.5.dfsg-9+deb8u1
ii  libirs-export91   1:9.9.5.dfsg-9+deb8u1
ii  libisc-export95   1:9.9.5.dfsg-9+deb8u1

isc-dhcp-client recommends no packages.

Versions of packages isc-dhcp-client suggests:
pn  avahi-autoipd  <none>
pn  resolvconf     <none>

-- no debconf information