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Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images
From: |
Jorge Lucángeli Obes |
Subject: |
Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images |
Date: |
Tue, 14 Aug 2007 16:02:35 -0300 |
On 8/14/07, Laurent Vivier <address@hidden> wrote:
> Markus Hitter wrote:
> >
> > Am 13.08.2007 um 11:19 schrieb Laurent Vivier:
> >
> >> We can modify qemu to test if the argument is a directory, if yes, it
> >> reads args
> >> from file args in this directory and for security the disk image must
> >> be in the
> >> same directory.
> >>
> >> for instance, we have:
> >>
> >> ./pc1/
> >> ./pc1/args
> >> ./pc1/my_disk
> >>
> >> and in ./pc1/args, we have "-hda my_disk"
> >
> > ... and "-hdb ../pc2/my_other_disk"
>
> If we want to preserve security we should forbid this, but you can make a
> soft link:
>
> ln -s shared_disks/my_disk1 pc1/my_shared_disk
> ln -s shared_disks/my_disk1 pc2/my_shared_disk
>
> and have pc1/args and pc2/args = "-hda my_disk -hdb my_shared_disk"
> to have:
>
> qemu -hda pc1/my_disk -hdb pc1/my_shared_disk
>
> qemu -hda pc2/my_disk and -hdb pc2/my_shared_disk
>
> > The directory idea sounds good. Especially for me, as I'm obviously the
> > only one running one disk image in different virtual machines.
> >
> > Plus, it'd work for physical partitions / disks: Simply have a directory
> > with an "args" file only.
> >
> >
> > my $ 0.01
> > Markus
Quoting Thiemo, this '@' thing was "a feature which is now implemented
in the GNU toolchain". That's why I tried it. Now I would like to know
what he did to get it working. It would certainly be an useful
feature, even if it does not exactly suit our purposes.
I still think that the executable-image approach could work nicely.
However, the point in favour of a configuration directory when using
physical partitions or disks is good. Nonetheless, a physical
partition is much less "volatile" than an disk image, so the
disadvantage of keeping a shell script is small in that case.
Cheers,
Jorge
- Re: [Qemu-devel] Re: [kvm-devel] Storing command line options in images, (continued)
- Re: [Qemu-devel] Re: [kvm-devel] Storing command line options in images, Avi Kivity, 2007/08/10
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Anthony Liguori, 2007/08/10
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Avi Kivity, 2007/08/10
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Anthony Liguori, 2007/08/10
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Jorge Lucángeli Obes, 2007/08/10
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Avi Kivity, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Laurent Vivier, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Christian MICHON, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Markus Hitter, 2007/08/14
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Laurent Vivier, 2007/08/14
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images,
Jorge Lucángeli Obes <=
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Thiemo Seufer, 2007/08/14
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Christian MICHON, 2007/08/14
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Thiemo Seufer, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Christian MICHON, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Philip Boulain, 2007/08/13
- [Qemu-devel] Re: [kvm-devel] Storing command line options in images, Jernej Simončič, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Thiemo Seufer, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Philip Boulain, 2007/08/14
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Anthony Liguori, 2007/08/13
- Re: [kvm-devel] [Qemu-devel] Re: Storing command line options in images, Jorge Lucángeli Obes, 2007/08/14