I'm using SmartOS on my servers and I'm really enthusiastic about it, especially since they launched their "LX-branded zones". These enable us to run Linux applications in a SmartOS "zone" at bare metal performance without a hypervisor.
When I create an LX-branded zone, I have to write a manifest file, which includes a kernel_version property. In the example that Joyent provides on their website, kernel_version is set to 3.13.0, see https://wiki.smartos.org/display/DOC/LX+Branded+Zones.
The "real" Ubuntu comes with a 3.16 kernel, though.
My questions:
- When providing different values for
kernel_version, will that actually change the Linux kernel features that SmartOS emulates? Or is it just an "informative" value that will be returned to user land apps running in the LX zone when they inquire the kernel version? - What values for
kernel_versionare supported in current SmartOS? "Current" at the time of writing is joyent_20150612T210440Z.
I thoroughly checked loads of documentation from Joyent and did extensive web research, but I haven't found any answers to my questions above.
Any help is greatly appreciated.