hwclock problems with dual boot

My English version of Windows 10 and Ubuntu 16.04 could not agree whether my hwclock is UTC or not. So booting either Window or Linux changed my hwclock and then the time in the other OS was wrong. So I changed my hwclock to UTC and told Windows and Linux that my clock is set to UTC:

Windows:

Linux:

Open the file (as superuser)

and add or change UTC=yes

Static IP-Configuration

In this example eth0 should get a static ip. This can be done by editing
/etc/network/interfaces:

This is the entry to configure gateway and dns-server.

Rotate Monitor under Linux

I have a pivot monitor and want to set it up correctly. First you get a list of your connected displays with the command

This says something like

HDMI-0 connected 1920×1200+1920+0 (normal left inverted right x axis y axis) 593mm x 371mm
1920×1200     59.95*+  59.88
1920×1080     60.00    59.94    50.00    60.05    60.00    50.04
1680×1050     59.95
1600×1200     60.00
1440×900      59.89
1400×1050     59.98
1280×1024     75.02    60.02
1280×960      60.00
1280×720      60.00    59.94    50.00
1152×864      75.00
1024×768      75.03    70.07    60.00
800×600       75.00    72.19    60.32    56.25
720×576       50.00    50.08
720×480       59.94    60.05
640×480       75.00    72.81    59.94    59.93
480×576       50.00
480×480       59.94

And if you have more than one displays this is repeated with e.g. HDMI-1 if bot are connected via HDMI. For display port it says DP-0 and so on.

To rotate this display there are the the following commands:

 

Enterprise Architect 11/12 under Wine

To install EA under Linux with wine there are a few steps to take before it works and you are able to run EA plugins:

  • Install winetricks
  • Prepare a 32bit wine runtime with WINEARCH=win32 WINEPREFIX=~/.wine winecfg (just click ok in the dialog)
  • winetricks allfonts (this exited with an exit code on my machine, but this was no problem)
  • winetricks msxml3 mscml4 mdac28
  • winetricks dotnet40 corefonts (needed for plugins – not sure if corefonts is necessary)
  • After that you can install your .exe files with wine xyz.exe and .msi files with wine msiexec /i abc.msi

Infos taken from Sparx Systems and Wine.

Update gem behind proxy

I tried to update gem behind a proxy and got the following error message:

Though the http_proxy and https_proxy (also in upper case) was set it didn’t work.  Trying to set the proxy directly in the command did the trick:

Ubuntu 15.10 “error: symbol ‘grub_efi_find_last_device_path”

Updating to the latest grub version (at the moment 2.02~beta2-29ubuntu0.3) leads to “error: symbol ‘grub_efi_find_last_device_path’ not found” when I try to start Windows on my dual boot system having Ubuntu 15.10 next to Windows 10.

This can be fixed by downgrading to the version before the latest one in the ubuntu repository till this bug is fixed.

Here is how I downgraded my grub installation:

Without the hold line apt would install the latest version on the next upgrade. As soon as the bug is fixed you can remove the hold mark with

Configure Redis-Cache in Magento 2

To use redis for caching in magento2 I added the following part in app/etc/env.php: