Archive for the 'Virtualization' Category

 

 

Dec 13 2014

Hyper-v vhd Virtual Disk Does Not Reduce

Published by under Virtualization

You’ve freed up a lot of space on your hyper-v virtual machine and tried to compact the vhd file but no luck, it doesn’t shrink as much as it should.   Here are a few things I tested: Defrag, shrink volume from the VM disk manager, Defrag adding the vhd on another VM as a […]

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Dec 04 2012

Hyper-v “error loading operating system” after running disk2vhd

Published by under Virtualization,Windows

Converting a Windows 2003 Server to a Hyper-v virtual machine with disk2vhd tool may throw a generic error on a black screen on boot: Error loading operating system   Needless to say Windows is not even starting. I tried to repair Windows with a 2003 server image, fixmbr, fixboot, nothing works. The MBR needs to […]

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Apr 19 2008

Xen Tips

Published by under Linux,Virtualization

Disabling Image Files Xen usually stores running domains in /var/lib/xen/save, causing a /var full on many systems when dom0 is shut down. Edit /etc/sysconfig/xendomains or /etc/default/xendomains and replace "XENDOMAINS_SAVE=/var/lib/xen/save" with "XENDOMAINS_SAVE=" This sends a shutdown signal to all virtual machines before dom0 reboots. A 300 second timeout is defined before killing an OS that hangs […]

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