–> https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=149221

1. stopped the ntpd with :

sudo systemctl stop ntp

2. rather than running ntpdate, ran ntpdate-debian:

sudo ntpdate-debian

3. started ntpd

sudo systemctl start ntp

4. check

sudo ntpq -p

Now I´m happy!!

Of course I did. I tried the automatic and manual install with a formated SD card several times.
That´s the setup I´m using:
Raspberry Pi: https://www.amazon.de/gp/product/B01CEFWQFA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

SD- Card: https://www.amazon.de/gp/product/B013UDL5V6/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=

Keyboard: https://www.amazon.de/Logitech-Keyboard-QWERTZ-deutsches-Tastaturlayout/dp/B003PAMIA2/ref=sr_1_1?s=ce-de&ie=UTF8&qid=1474639200&sr=1-1 keywords=logitech+K120

Power Source: https://www.amazon.de/gp/product/B01DBYGV04/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

OS: 2016-05-27 raspbian jessie

Right now MM runs fine with the above mentioned commands. The only problem that remains is that the system clock of the Raspberry still doesn´t synchronize with the Internet. After using “sudo date -s “20 SEP 2016 20:37:00”” the system clock remains on the 20th of September, 22:26h. Hope I can fix that this weekend. Any suggestions are highly appreciated. Thanks.

I tried that several times and it didn´t work! My Raspberry is probably some sort of unique…

sudo apt-get update
sudo apt-get upgrade

then go to installing the mirror via the install script.

Note from admin: Please use Markdown on code snippets for easier reading!

Oh I know, check that your system date and time is correct.

If there is internet connection available follow the steps to set the date:

1. sudo raspi-config
2. Internationalization options
3. Change Time Zone
4. Select geographical area
5. Select city or region.
6. Reboot your pi.

Maybe:
sudo date -s “19 SEP 2016 20:37:00”

Excellent! For some reason I wasn´t able to set the correct time and date via raspi-config. Using sudo date -s “19 SEP 2016 20:37:00” solved the problem. After that I was able to run curl -L https://npmjs.org/install.sh | sudo sh. The install script curl -sL https://raw.githubusercontent.com/MichMich/MagicMirror/master/installers/raspberry.sh | bash went through just like a charm!
Although I still do not understand the connection between the wrong set time and date and the installation I´m very happy to run MM now. Now I have to configure the modules.
–> A WORLD OF THANKS TO YOU!!

If there is internet connection available follow the steps to set the date:

1. sudo raspi-config
2. Internationalization options
3. Change Time Zone
4. Select geographical area
5. Select city or region.
6. Reboot your pi.

Maybe:
sudo date -s “19 SEP 2016 20:37:00”

I had same problem so I ran this:

curl -L https://npmjs.org/install.sh | sudo sh

Thanks a lot. But when I run this I get the message that the certificate is not yet valid and if I´d like to turn off the curl´s verification of the certificate I have to use the -k option. Any hints about that?

curl -L https://npmjs.org/install.sh | sudo sh

Reading package lists ... Done
Dependency tree.
Status information can be read ... Done
NodeJS is already the newest version.
NodeJS was defined as installed manually.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Node.js installation Done!

So somewhere, somehow, your node installation is marked as non-upgradable through apt-get. I just tried with a fresh rpi, grabbed the most recent version of Rasbian listed on the Raspberry website and everything ran just fine. I’m not sure what to tell you here …

I´m using the 2016-05-27 Raspbian version of jessie. Did anybody make similar experiences with this version? If so, how did you solve this issue? Any help is highly appreciated!
Frank