-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 2016-09-21 13:14, Otto Kratik wrote: > On Friday, September 16, 2016 at 4:44:10 PM UTC-4, Andrew David Wong wrote: >> I think you (or someone else) would have to put in the coding work in >> order to make this work in the desired way. However, a lot of work >> has already been done on the Archlinux Template (which, I assume, >> can be run as an HVM if desired, though I haven't tried it myself): >> https://www.qubes-os.org/doc/templates/archlinux/ >> Some work has also been done on an Ubuntu template: >> https://www.qubes-os.org/doc/templates/ubuntu/ > > Generally speaking, is it the case that running apps directly from a > TemplateVM (whether it's Debian, Fedora, Arch, Ubuntu) is functionally > equivalent and identical to operating that template/distro as a > self-contained standalone HVM? Meaning if I wanted a Debian HVM, it's just as > easy to clone my Debian TemplateVM and treat it as an HVM, instead of > creating an actual new HVM the classic way and then installing a Debian ISO? > > Is there any fundamental intrinsic difference between how a Template behaves > if used in this fashion, and how a normal HVM would behave? >
The term "TemplateVM" describes any VM that supplies its root filesystem to another VM. TemplateVMs are distinct from TemplateBasedVMs, which depend on other VMs for their rootfilesystems, and StandaloneVMs, which do neither. By contrast, the term "HVM" (Hardware Virtual Machine) refers to any "fully virtualized," or hardware-assisted, VM that utilizes the virtualization extensions of the host CPU (e.g., VT-x). HVMs are distinct from PV (paravirtualized) VMs, which do not require virtualization extensions from the host CPU, and other variants such as PVHVM (PV-on-HVM). So, TemplateVMs and HVMs are categorically different. The former refers to the VM's degree of (in)dependence relative to other VMs in the system, whereas the latter refers to the manner in which a VM is virtualized. An HVM itself can be a TemplateVM (in which case it's called a "TemplateHVM"), a TemplateBasedVM (in which case it's typically just called an "HVM"), or a StandaloneVM (in which case it's called a "StandaloneHVM"). For more on Qubes terminology, see the glossary: https://www.qubes-os.org/doc/glossary/ Since your question is about the functional or behavior differences between TemplateVMs and HVMs, I take it that what you're really interested in is the practical difference between using TemplateVMs and StandaloneVMs as VMs which do not depend on any other VM for their root filesystems. The only significant difference I'm aware of is that using a TemplateVM allows you to retain the option of creating TemplateBasedVMs based on this TemplateVM in the future, whereas a StandaloneVM does not. If you one day decide that you'd like to have a TemplateBasedVMs based on your StandaloneVM, you'll have to re-create it as a TemplateVM. There's no (easy) way to turn a StandaloneVM into a TemplateVM. - -- Andrew David Wong (Axon) Community Manager, Qubes OS https://www.qubes-os.org -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJX4y3SAAoJENtN07w5UDAw2KMP/1q1m4hg+g60+vs+PgdMcVxI BYOeVzVCO8E6RTIboRhMpoXMAxnbeAZC0LCdG8a2tzMMpkBJToI/xGCYkNcXsAGk F0tAeDW2WTvQ+uaA3kOcrrWJr4FyCjLzZXfrKZAz+O2fGnFJmRaqGMbmTiZwggBi o1ZakBbXszk557fKdN9u9P8TRZhZw/aAkawFr8iT8pTaPug5DYSggtjEt0JSIczk skkTiGAvGbiQL6t4Zjq43eskRViKT09Dmuo6cjg4tS4oSctbuFn89qrrtavZ/Y6Y ZaVryreIDBJgQ1Xy5Mk23Duw9mWAYg3Cgsw7EKNa9rlh9JsbZ9e36oarc/qJq16Z PeADXaiRrpzYzeb26ju6ibEnp0QaU6f2AZAtECIM+Lej2h6cpZiW4BVHx4KsuA+Z hfZYPHqwusH6pdROW6naGyjkv10ZmsK3eDyBg5335LrPon19Ak/X5exRIh3va86g eQaCMlHKQpXCm+9b7k7HnkhvnAjMXi9+Y0cqBfJHi1BuhtE4iH6wiAr1I6cE5ndr lgtTfRt5oyOsEKgv1YUaR60UOwyeVFOXCS+Cxlrp5TYXGcPUehEgcrsFj2YiymZu py1HmSmTLuVDtCSQhAr5PGGLBIYdRvGXt1avv8/PKob6PUGnfiiGI7GEVKWheE8Y lkpuRNNZd8nSyYEViczY =YSee -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/9853cfed-de73-d60b-32ab-8b3783757e2a%40qubes-os.org. For more options, visit https://groups.google.com/d/optout.
