SpeedStep on NetBSD/xen
When you boot NetBSD/xen, you don’t get SpeedStep anymore. At least, on NetBSD 5.1, as of 2011-07-14. Some job have been done in 2009 but wasn’t kept in the sources. Check Add Intel SpeedStep and AMD PowerNow! support in Xen dom0 for more informations.
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Convert a Xen disk image to VMware
I run my production virtual machines on NetBSD/xen. But I’m doing all the testings on VMware Fusion.
Last week, I wanted to grab my production machine and tweak it from my testing environment.
Here’s how to convert and use a xen disk image on VMware software:
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NetBSD/xen on Dell Inspiron 10
It’s now been two days I’m running TuM’Fatig on my Dell Inspiron Mini 10. The AIRIS N1110 has died so I just took the RAM and disk out of it and plug both in the Mini. Just modify the ifconfig files and here we go.
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Debian Lenny on NetBSD/xen
Debian Lenny is one of my favorite Linux Distribution (when I have to run Linux… 
Here’s how to install and run a Lenny domU under a NetBSD/xen dom0 installation.
My dom0 is running NetBSD 5.1_STABLE/amd64 and Xen version 3.3.2.
The domU will be running Debian GNU/Linux 5.0 (i386).
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Running Windows on Xen
The NetBSD/xen port is able to run M$ Windows domU, since you have a CPU that features the Intel® VMX instruction.
First, ensure that your (Intel®) CPU has the correct feature ; I’m looking for the Intel® Virtualization Technology feature:
# cpuctl identify 0 cpu0: Intel Core 2 (Merom) (686-class), id 0x6f6 (...) cpu0: features2 0xe3bd<SSE3,DTES64,MONITOR,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM> (...) cpu0: "Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz" (...)
The VMX feature means that I should be able to run any Xen-unaware OS.
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