VirtualBox not starting VMs anymore after apt-get dist-upgrade on Debian Squeeze (Segmentation Fault)

After a recent apt-get dist-upgrade from Debian Squeeze to Jessie, VirtualBox didn’t start my VMs anymore. I found this error in /var/log/syslog: Jan 22 14:39:11 macke kernel: [1477940.229596] vboxdrv: ffffffffa0cb2020 VMMR0.r0 Jan 22 14:39:12 macke kernel: [1477940.316166] VBoxNetFlt: attached to ‚vboxnet0‘ / 0a:00:27:00:00:00 Jan 22 14:39:12 macke kernel: [1477940.317887] device…

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SuSE Linux (SLES) 11: SSH authentication via Kerberos (GSSAPI) with PuTTY and Windows Server 2008

After many days of trial and error, today I finally managed to automatically log on to my SuSE Linux 11 (SLES11) server with PuTTY using Kerberos authentication by a Windows Server 2008. Here are the exact steps I followed to reproduce the working configuration: Follow the setup described in Michele’s…

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VBoxManage: error: VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED)

Today I wanted to add a new 64bit virtual machine to my VirtualBox installation but when I tried to power it on I got the following error message: root@debian /home/vms/Webserver # VBoxManage startvm Webserver –type headless Waiting for VM „Webserver“ to power on… VBoxManage: error: VT-x features locked or unavailable…

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