I noticed that I got some error when my Debian Wheezy was starting today, but then I couldn't find anywhere to look into it in more detail. There was nothing interesting in
syslog. Where can I find these messages?
bootlogd package, the output will then be logged in
/var/log/boot. You can format the output correctly with (in
sed $'s/\^\[/\E/g;s/\[1G\[/\[27G\[/' /var/log/boot
Also related - How to read the messages during power off