Upgrade from Mageia 4 to Mageia 5

Step 1

# Update your system packages to latest version #

# urpmi --auto-update

or 

# urpmi.update -a 

Step 2 

# Removing existing media from system #

# urpmi.removemedia -a 

 
Step 3

# Add media from Mageia 5 (In the future this links may not be aviable)
# Mageia 5 Mirror Server for 64-bit #
# urpmi.addmedia --distrib --mirrorlist 'http://mirrors.mageia.org/api/mageia.5.x86_64.list'

# Mageia 5 Mirror Server for 32-bit #
# urpmi.addmedia --distrib --mirrorlist 'http://mirrors.mageia.org/api/mageia.5.i586.list'

Step 4

# Start Upgrading Mageia 5 #
# urpmi --replacefiles --auto-update --auto