From MEPIS Documentation Wiki
A quick check of kernel messages is given by the command
dmesg | tail
for a shorter version that lists the most recent log entries.
Various systems logs can be found in
You must examine these text files as root. Some important ones are
- auth.log See how, when, and who has been logging onto your system
- kern.log Log of kernel messages.
- messages Repeat of auth.log, cron, mail
Other files containing *.0 or *.1.gz, *.2.gz, ... are rolling archives of the log.
By default, MEPIS does not store the boot messages that can be seen during the boot process. To turn it on, edit as root the file /etc/default/bootlogd and change No to Yes. Re-boot and the messages will be stored in /var/log/boot.