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Old 09-25-2012, 05:11 AM
Nicolas Michel
Default Specialized kernel/base system for VM's/VE's


I don't think you'll see a that lightweight kernel in
distributions like Ubuntu. But saying that, you probably don't know how
the Linux kernel work: most of the functions of the kernel (except core
functions) can be compiled directly into the kernel or compiled as a
module. Distributions like Ubuntu are mostly using module when
available. With modules, when your computer need a function that is not
in the kernel core it loads the related module into the memory.

Conclusion: the only thing modules takes is disk space (try a du
-sch /lib/modules to know how much) but not memory or other ressources
until they are loaded.

So, compiling a very lightweight kernel
(much more that the Ubuntu one) is possible. You can do it following
tuto on the net. But it doesn't make sense on a VM. It only makes sense
on embeded hardware where each megabytes is good to save.

2012/9/24 Enrico Weigelt <enrico.weigelt@vnc.biz>

Hi folks,

is anyone currently working on optimized/minimized kernel

and base packages for VM's ?

My goal is having a really minimized base system for VMs

and VEs, which don't have anything that's really needed

there (eg. VEs dont need all the kernel related stuff,

VMs just only those parts which are really required for

running in an virtio-based environment, etc, etc).



Mit freundlichen Grüßen / Kind regards

Enrico Weigelt

VNC - Virtual Network Consult GmbH

Head Of Development

Pariser Platz 4a, D-10117 Berlin

Tel.: +49 (30) 3464615-20

Fax: +49 (30) 3464615-59

enrico.weigelt@vnc.biz; www.vnc.de


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