Linux Debian 7 Update

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Update Debian 7.0 Wheezy to 8.0 Jessie

Official link : https://www.debian.org/releases/jessie/amd64/release-notes/ch-upgrading.en.html

Before update

you should remove graphical interface to prevent useless trouble

to remove gnome environement:

apt-get remove gnome-core

Packets update

update wheezy to last version

apt-get update
apt-get upgrade

sources.list

First, prepare sources.list, You can use your favorite text editor, to open /etc/apt/sources.list file.

nano /etc/apt/sources.list

And change wheezy for jessie, it may look like this after the change:

deb http://mirrors.kernel.org/debian/ jessie main
deb-src http://mirrors.kernel.org/debian/ jessie main

deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main

if you have other lines, you have to remove them to prevent conflict

Upgrade the system

Update the sources

apt-get update

Minimal upgrade

apt-get upgrade

Final upgrade

Once all these steps have completed, I can now upgrade the distribution so:

apt-get dist-upgrade

clean useless packages

apt-get autoremove

restart linux !

reboot

Results

to verify boot logs check in /var/log/boot if nothing has been logged yet or if file is missing, install the package bootlogd:

apt-get install bootlogd

to display log with visibility:

sed 's/\^\[/\E/g;s/\[1G\[/\[27G\[/' /var/log/boot > /var/log/bootFormated

or

sed 's/\^\[/\E/g' /var/log/boot | less -R > /var/log/bootFormated

then edit /var/log/bootFormated and search for "error" string

• working stuff after the upgrade:
  • Linux users
  • Linux conf
  • ssh conf (and sftp)
  • Apache conf (with custom .so)
  • PHP conf
  • Mysql server
  • Personnals web site
  • Cgit
  • phpMyAdmpin
  • Wiki
  • and some more tools

• not working stuff:
  • Mounted folder (on oracleVM Virtual box)
    • requier install new VirtualBox Guest Additions (don't forget to update linux headers)

apt-get install linux-headers-$(uname -r)
apt-get install virtualbox-ose-guest-utils
modprobe vboxvfs
mount -t vboxsf {mountName} {targetFolder}