Package: dhcp-client-udeb Version: 2.0pl5-19.1 Severity: serious Tags: d-i Installations for 1386 using current daily builds (using 2.6.12) are failing with a screen saying "no default route could be set". The cause for this is that in /etc/dhclient the 'ip route add' command is failing. It returns "ip: RTNETLINK answers: Network is unreachable".
This problem has been seen both on real hardware (like my laptop) and both qemu and vmware. I'm able to reproduce it consistently. I've never seen the problem during installations using images based on 2.6.8 or 2.6.11. It happens both when using DHCP and for static net configuration. I've been trying to trace the problem using several different daily netinst images (using 2.6.12) and the official Sarge netinst (using 2.6.8) for comparison and using different network devices/modules. The error happens both when dhclient is run from netcfg and when it's run from VT2 in busybox. A log with set -x in /etc/dhclient-script is attached. I've also run an strace on the 'ip route add' command. Attached are an strace for the failed command and one for a successful command from a 2.6.8 install. Currently I'm unsure whether this is a kernel problem, a d-i problem, a busybox problem and/or related to other changes in unstable (like gcc transition). I've reached the end of my skills, somebody else needs to take over from here. I'm submitting this bug against dhcp-client-udeb because that's where it manifests itself, but feel free to add info and reassign.
Internet Software Consortium DHCP Client 2.0pl5 Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium. All rights reserved. Please contribute if you find this software useful. For info, please visit http://www.isc.org/dhcp-contrib.html + set -e + [ -n ] + [ -n ] + [ -n ] + [ -n ] + ip link set lo up + sleep 1 + exit 0 + set -e + [ -n ] + [ -n ] + [ -n ] + [ -n ] + ip link set eth0 up + sleep 1 + exit 0 Listening on LPF/lo/<null> Sending on LPF/lo/<null> Listening on LPF/eth0/00:0c:29:cb:57:af Sending on LPF/eth0/00:0c:29:cb:57:af Sending on Socket/fallback/fallback-net DHCPDISCOVER on lo to 255.255.255.255 port 67 interval 6 DHCPREQUEST on eth0 to 255.255.255.255 port 67 DHCPACK from 172.16.249.254 + set -e + [ -n 255.255.255.0 ] + ptom 255.255.255.0 + new_mask=/24 + [ -n ] + [ -n 172.16.249.255 ] + new_broadcast_arg=broadcast 172.16.249.255 + [ -n ] + set_hostname + cat /proc/sys/kernel/hostname + local current_hostname= + [ -z ] + echo + [ -n ] + [ -n ] + [ -z ] + ip link set eth0 up + ip addr flush dev eth0 + ip addr add 172.16.249.130/24 broadcast 172.16.249.255 dev eth0 + ip route add default via 172.16.249.2 ip: RTNETLINK answers: Network is unreachable bound to 172.16.249.130 -- renewal in 900 seconds.
dhclient_2.6.12.strace.gz
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dhclient_2.6.8.strace.gz
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