华为SDH传输设备故障分析及排除

Step #1: Make a Backup

Step #2: Apply all etch updates

#apt-get update

#aptitude safe-upgrade

#reboot

Step #3: Update /etc/apt/sources.list

Step #4: Upgrade Debian to from 4.0 to 5.0

#aptitude update

#apt-get install apt aptitude

#

#aptitude safe-upgrade

#aptitude install 

#aptitude full-upgrade

Step #5: Verify your system

#uname -a

#cat /etc/debian_version

#egrep -i 'err|warn' /var/log/dmesg

#egrep -i 'err|warn' /var/log/messages

#tail -f /var/log/dmesg

#tail -f /path/to/other/apps/log

#netstat
-tulpn

#rcconf

#iptables -L -n

#ip6tables -L -n