On 10/02/2016 08:59 AM, Hans Kraus wrote:
> I upgraded my Debian server about a week ago from Wheezy to Jessie.
> After that the GUI stopped, I see only the grey screen with the sad
> computer telling me " Oh no, Something is Wrong" and the only option is
> to log out.
>
> I'm using Gnome as my desktop. I installed the package again with:
> apt-get install task-gnome-desktop
> I did not get any error message, but that didn't cure my problem.
>
> Afterwards I tried: "dpkg --configure -a". Again, I didn't get any
> error message but that didn't cure my problem.
>
> I rebooted the system several times but with no avail.
>
> Which info should I provide and/or where should I check my system for
> errors? The text based login via ssh (I use Putty from Win 8.1)
> functions without problems.
Some people have computers upon which they have successfully performed
operating system in-place major version upgrades; some boast of several
such upgrades over many years. I didn't have much success with this
early on, so I pursued the KISS approach instead. I have invested in
learning and resources that allow me to do image, backup, archive, wipe,
install, configure, restore, migrate, test, commissioning, and cut-over
processes.
I find it helpful to:
1. Have a dedicated hardware firewall/ router appliance.
2. Have more than one computer, each dedicate to one purpose:
a. File server.
b. Backup, archive, and imaging.
c. Workstation or laptop (one user each).
d. Other, as needed.
3. Use HDD/SSD mobile racks.
4. Maintain a supply of spare parts, including a spare computer that
can substitute for any of #2.
It sounds like you have put yourself into a disaster recovery situation.
I'd advise restoring the Wheezy server, building a fresh Jessie server,
migrating the services and data, testing thoroughly, and making a decision.
David
