On 11/18/2010 12:58 AM, Kenni Lund wrote:
Hi I'm about to move a couple of virtual machines from a Fedora 11 system to a new server with a more recent operating system and newer version of KVM, etc. One of the guests is a Windows Server 2003 Standard SP2, which is currently running with the "ACPI Multiprocessor PC" HAL. Considering moving to RHEL, I've been reading the virtualization documentation for RHEL 6.0, which says that I need to set HAL to "Standard PC" when installing a new Win2003 guest. Since my current guest has been running perfectly fine for a long time with its current HAL, I was wondering if the system will become unstable, unbootable or what the disadvantage will be, if I move the guest to for example RHEL 6.0, without reinstalling or upgrading the guest to select another HAL mode? On the other hand, it seems like I can "upgrade" from the current "ACPI Multiprocessor PC" into "Standard PC", but I'm not sure if I'll gain anything by trying this.
I suggest using the default HAL, whatever it is. That's what everyone else is using so you get the best tested configuration.
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