Ivan Shmakov, le Fri 05 Jun 2009 22:26:46 +0700, a écrit : > >>>>> Samuel Thibault <samuel.thiba...@gnu.org> writes: > > >>>> * The time and qualification necessary to deploy one or more > >>>> GNU/Linux systems on a single host using User-Mode Linux is (to my > >>>> experience) significantly lower than for the other solutions (KVM, > >>>> Xen) > > >>> For Xen I agree. For KVM, I don't. Building a UML image is not > >>> particularly easier than building a KVM image. > > >> I've implied using rootstrap to build an image. > > > And you can use debootstrap to build a debian image. There is no > > fundamental difference here. > > There is: debootstrap only runs privileged.
Gah, damn silly OSes that don't permit mounting images as non-priviledged user :) > > Oh, I thought it was given to any user. > > There's the `kvm' group in Debian GNU/Linux. Yes, I've seen that, but I meant that I had completely forgotten that I had added myself to it long time ago. > > So they still fear security breaches... > > A completely bug-free version of Linux is yet to be released. Sure, but they still allow anybody to open a TCP/IP socket by default. > With the latter being said, I wonder, wouldn't the changes > necessary to run GNU Mach in user-mode be similar to those > already done to make it suitable for Xen? The thing is: Xen provides you with pagetable-like operations so it's quite easy to do it. Linux doesn't provide you with that and so you'll have to reimplement memory management tricks. Samuel
