I am using VirtualBox 4.2.6 on Windows 8 as host. Installing any Linux flavour Fedora/Ubuntu causes VirtualBox to crash when I press tge "Reboot" button (on the Linux screen) after installation is complete.
VirtualBox COM Server 4.2.6 r82870 win.amd64 (Dec 19 2012 14:42:41) release log
00:00:00.000000 main Log opened 2013-01-06T12:09:42.598517400Z
00:00:00.000000 main OS Product: Windows 8
00:00:00.000000 main OS Release: 6.2.9200
00:00:00.000000 main OS Service Pack:
00:00:00.062000 main DMI Product Name: Inspiron N4010
00:00:00.062000 main DMI Product Version: A13
00:00:00.062000 main Host RAM: 3892MB total, 2518MB available
00:00:00.062000 main Executable: C:\Program Files\Oracle\VirtualBox\VBoxSVC.exe
00:00:00.062000 main Process ID: 6436
00:00:00.062000 main Package type: WINDOWS_64BITS_GENERIC
00:00:00.437000 usbLibDevCfgDrGet: DeviceIoControl 1 fail winEr (31)
00:00:00.812000 VDInit finished
00:00:02.734000 USBPROXY usbLibDevStrDrEntryGet: DeviceIoControl 1 fail winEr (31)
00:01:09.015000 ERROR [COM]: aRC=VBOX_E_INVALID_VM_STATE (0x80bb0002) aIID={22781af3-1c96-4126-9edf-67a020e0e858} aComponent={Machine} aText={Machine is not locked for session (session state: Unlocked)}, preserve=false
00:01:09.484000 ERROR [COM]: aRC=VBOX_E_IPRT_ERROR (0x80bb0005) aIID={22781af3-1c96-4126-9edf-67a020e0e858} aComponent={SessionMachine} aText={Saved screenshot data is not available (VERR_NOT_SUPPORTED)}, preserve=false
It's actually the VM log we need, rather than the VBoxSVC log. The VM log file is called "VBox.log", and can be found in the "Logs" subfolder of your VM folder. Also, please post it as a .zip attachment, as that saves server space and ensures that you're unlikely to hit the attachment size limit.
Thanks for the reply again.
I seem to have solved the problem. I force unmounted the virtual drive (I was using .iso file as a virtual drive for the installations) just before pressing the reboot button. VirtualBox did not crash this time. However, I had to send a manual "Power off" and restart the VM again. It worked!
I have had this issue of the VM crashing at first reboot. How did I solve it; I uninstalled (removed) the latest version of Oracle VM(VirtualBox-4.3.6-91406-Win) which I was using. Then I installed an older version (VirtualBox-4.1.26-84997-Win). It worked great and I never had this issue again. Please try it and post a feedback to let me if it worked for you. I hope this helps someone.