boot1: /var/log/boot.0
boot2: /var/log/boot
dmesg1: /var/log/dmesg.0
dmesg2: /var/log/dmesg

The first boot (dmesg1/boot1) and the second boot (dmesg2/boot2) have
been done under the same conditions: no Ethernet cable plugged in, no
package upgrade between the two boots, no manual change of the config
files except a "dpkg-reconfigure exim4" to use a smarthost.

The automatical changes:

/etc/resolv.conf changed to:
domain home
search home
nameserver 192.168.1.1
nameserver 192.168.1.1

and possibly:

--- etc/dhcp3/dhclient.conf     2009-06-19 01:48:02.000000000 +0200
+++ /etc/dhcp3/dhclient.conf    2009-09-10 22:18:04.000000000 +0200
@@ -17,7 +17,7 @@
 #send dhcp-client-identifier 1:0:a0:24:ab:fb:9c;
 #send dhcp-lease-time 3600;
 #supersede domain-name "fugue.com home.vix.com";
-prepend domain-name-servers 127.0.0.1;
+#prepend domain-name-servers 127.0.0.1;
 request subnet-mask, broadcast-address, time-offset, routers,
        domain-name, domain-name-servers, domain-search, host-name,
        netbios-name-servers, netbios-scope, interface-mtu,

This domain-name-servers change of /etc/dhcp3/dhclient.conf is done
by various scripts as a workaround to a broken DNS configuration of
Orange's SMTP servers smtp.wanadoo.fr (Orange's DNS servers must be
used instead of BIND) and to a bug in a Netopia ADSL modem-router
(BIND must be used instead of the modem-router's DNS server).
