[SOLVED] Adding 1 cpu to a Linux VM seems not to work

[Perryg]

In all actuality there should be documentation, but with the massive amount of hosts/guests supported both 32 and 64 bit, it is all but impossible to have everything in the Docs. Contributions are always welcome ( it's open source ), not to mention the ever changing architecture. We here catch most of these issues and provide the necessary information and should have asked that you post the log file earlier. Keep that in mind if and when you need assistance in the future, post the guests log file.

[sixstringartist]

This bit me too. Im assuming a default headless machine setup does not set --ioapic on. The initial install was done w/ one cpu and I went back to add more later only to find my setting not picked up. The article I used while setting up the machine did not include any mention of setting multiple cpus or the need for IOAPIC. Im not sure if this setting is always needed when setting multiple guest cpus. If so, it would be helpful to indicate a configuration issue when attempting to set

Code: Select all

modifyvm 
 Name --cpus N

when

Code: Select all

--ioapic off