I just upgraded my VPS at Linode from Squeeze to Wheezy, everything looked find (only some issues with Dovecot), but after the reboot the system hangs at:
[....] Starting the hotplug events dispatcher: udevdudevd[1452]: starting version 175
. ok
[ ok ] Synthesizing the initial hotplug events...done.
[ ok ] Waiting for /dev to be fully populated...done.
[....] Activating swap...Adding 262140k swap on /dev/xvdb. Priority:-1 extents:1 across:262140k SSFS
done.
[....] Checking root file system...fsck from util-linux 2.20.1
/dev/xvda: clean, 143730/4641408 files, 2003750/5177344 blocks
done.
EXT3-fs (xvda): using internal journal
[ ok ] Cleaning up temporary files... /tmp /lib/init/rw.
random: nonblocking pool is initialized
[info] Loading kernel module loop.
libkmod: ERROR ../libkmod/libkmod.c:554 kmod_search_moddep: could not open moddep file '/lib/modules/3
.16.5-x86_64-linode46/modules.dep.bin'
[ ok ] Activating lvm and md swap...done.
[....] Checking file systems...fsck from util-linux 2.20.1
done.
[ ok ] Mounting local filesystems...done.
[ ok ] Activating swapfile swap...done.
[ ok ] Cleaning up temporary files....
[ ok ] Setting kernel variables ...done.
[....] Configuring network interfaces...dhcpcd.sh: interface eth0 has been configured with new IP=178.
79.166.18
done.
[ ok ] Cleaning up temporary files....
[ ok ] Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix.
INIT: Entering runlevel: 2
[info] Using makefile-style concurrent boot in runlevel 2.
[ ok ] Starting enhanced syslogd: rsyslogd.
[ ok ] Starting SASL Authentication Daemon: saslauthd.
Reading configuration from file: /etc/caldavd/caldavd.plist
So, or it is something related to saslauthd (the last message printed), or to the error seen before with libkmod. Any clue?