Upgrade

Upgrade debian

STEP 1 CHECK YOUR CURRENT DISTRIBUTION

cat /etc/debian_version

current version (sept 2015) 7.8

table of reference:: table with colors https://en.wikipedia.org/wiki/Debian_version_history%7Chttps://en.wikipedia.org/wiki/Debian_version_history

check :: wheezy old stable

current version (aug 2017) 8.8
check :: jessie old stable

STEP 2 UPDATE CURRENT DISTRIBUTION

old stable > to stable

apt-get update && apt-get dist-upgrade && dist-upgrade && apt-get autoremove

(first update than upgrade, than upgrade again if something didn't happen well and autoremove the packages which are not used)

the first command update doesn't work, it logs that we failed to connect to archive.debian.org, a person who is in a paralelle working session, encountered this problem before and know the actual state of the vps where our vps is hosted, he was informed about a case of ddos attacks because of websiteon abortion, so we need to resolve our dns and have another nameserver.. or at least figure out the right numbers

STEP 3 UPDATE THE SOURCE.LIST FOR THE NEW DEBIAN RELEASE

update the source.list

nano /etc/apt/sources.list

wikipedia / debian > table with colors
(change the name of the distribution)

https://wiki.debian.org/SourcesList%7Chttps://wiki.debian.org/SourcesList

deb http://www.debian.org/debian jessie main
deb-src http://www.debian.org/debian jessie main

STEP 4 UPGRADE

apt-get update && apt-get dist-upgrade && dist-upgrade && apt-get autoremove