Troubleshooting: openSUSE Linux and VirtualBox VM

TRBL 1: I cannot install OpenSUSE linux using Oracle Virtualbox

TRBL 1: I cannot access the internet in the web browser even with the right proxy settings

  • Make sure that you have really configured proxy settings in all programs, see Troubleshooting - Proxies for more details.
  • Restart the networking service

    • Open in the application Konsole in your linux VM.
    • Type the command sudo rcnetwork restart.
    • Type the command sudo ifconfig and check if you see the IP address displayed.

TRBL 2: I cannot access localhost (e.g. SAP Cloud Connector) in a web browser neither from the host OS nor from the Linux guest OS

  • Make sure that you have really configured proxy settings in all programs, see Troubleshooting - Proxies for more details.
  • Restart the networking service

    • Open in the application Konsole in your linux VM.
    • Type the command sudo rcnetwork restart.
    • Type the command sudo ifconfig and check if you see the IP address displayed.

TRBL 3: Can’t install UUIDD in Linux

  1. You are trying to search uuidd and install the UUIDD service as described in Week 1 - Unit 6 - Install UUIDD service .
  2. If you cannot search the UUIDD service, check if you have set the proxy in the YAST as described in Week 1 - Unit 6 - 3.1 Configure Internet Proxy.
  3. Once you set the proxy, you need to restart YAST for the proxies to get effective.
  4. Try searching and installing UUIDD now.
  5. Also do not forget to start the UUIDD service as described in Week 1 - Unit 6 - Install UUIDD service .

TRBL 4: VM is not running / crashing

  1. The default power setting of the Linux VM is that the server will suspend your session after 10 minutes of inactivity when your laptop is on battery.
  2. This stops any access to the SAP AS ABAP system. You need to stop and restart the whole virtual machine. Then start your ABAP processes.
  3. Also check if your network connection is down
  4. Open in the application Konsole in your linux VM.
  5. Type the command sudo rcnetwork restart.
  6. Type the command sudo ifconfig and check if you see the IP address displayed.
  7. To disable energy saving settings and to keep the VM running always, follow the step 7 in Week 1 - Unit 6 - Step 2.4.

TRBL 5: The VM / openSUSE displays the lock screen too often

  1. The Linux VM locks the screen every 5 minutes by default.
  2. To change this default setting, switch to your Linux Virtual Machine. Type lock in the search.

  3. Change the setting so that the VM does not lock after every 5 minutes.

TRBL 6: Why is VirtualBox only showing 32 bit guest versions on my 64 bit host OS?

If VirtualBox is only showing 32 bit versions in the version list make sure:

  • Your host OS is 64-bit
  • Intel Virtualization Technology and VT-d are both enabled in the BIOS
  • The Hyper-V platform is disabled in your Windows Feature list.

For more details read this blog.

TRBL 7: My VM is very slow

If your host laptop is with 8GB RAM and if the Virtual Machine is very slow, you can save some resources by disabling all the graphical user interface. This saves some resources in the Virtual Machine. Once you have installed the SAP Netweaver AS ABAP Developer, you will not need the User Interface and can work with command line (Konsole).

  1. Open your Virtual Machine instance which you created in Week 1 - Unit 6.
  2. Open the command line application Konsole.
  3. Type the command sudo init 3. Now all graphical user interfaces will close.
  4. You will only see a konsole / terminal and you are asked for a user/password. Enter your Linux OS user and password which you normally use for logging into OpenSUSE.
  5. If you want to return to using graphical user interfaces (for YAST, firefox,..), in the command line application, Konsole, type the command sudo init 5.
  6. OpenSUSE reopens with the User Interface, in our case with KDE Desktop.