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Re: [Xen-users] Hardware virtualization
- To: Jan Hejl <jh@xxxxxxxxxx>
- From: Luisa Posani <lposani@xxxxxxxx>
- Date: Mon, 6 May 2013 14:00:54 +0100 (BST)
- Cc: xen-users@xxxxxxxxxxxxx
- Delivery-date: Mon, 06 May 2013 13:01:34 +0000
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- List-id: Xen user discussion <xen-users.lists.xen.org>
How do I get this info?
If I make 'free' :
free
total used free shared
buffers cached
Mem: 982620 919152 63468 0 13200 449232
-/+ buffers/cache: 456720 525900
Swap: 3906240 0 3906240
--- Lun 6/5/13, Jan Hejl <jh@xxxxxxxxxx> ha scritto:
Da: Jan Hejl <jh@xxxxxxxxxx>
Oggetto: Re: [Xen-users] Hardware virtualization
A: "Luisa Posani" <lposani@xxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Data: Lunedì 6 maggio 2013, 14:54
Seems like you don't have enough mem for your domU. How much memory
do you have on your dom0 / xen host?
Dne 6.5.2013 14:51, Luisa Posani
napsal(a):
I Jan.
I try to use a old rootfs.img taht work well with qemu.
The configuration file contains:
kernel = "/usr/lib/xen-4.0/boot/hvmloader"
builder='hvm'
memory = 1024
vcpus=2
vif = ['bridge=xenbr0']
disk = ['file:/home/posani/nine_disk_1.img,hda,w',]
acpi = 1
device_model = 'qemu-dm'
boot="d"
sdl=0
serial='pty'
vnc=1
vnclisten=""
vncpasswd=""
name="stefano"
but I have the error:
xm create /etc/xen/prova -c
Using config file "/etc/xen/prova".
Error: I need 1062912 KiB, but dom0_min_mem is 200704 and
shrinking to 200704 KiB would leave only 793340 KiB free.
Where is the problem?
Help me....
Luisa
--- Lun 6/5/13, Jan Hejl <jh@xxxxxxxxxx>
ha scritto:
Da: Jan Hejl <jh@xxxxxxxxxx>
Oggetto: Re: [Xen-users] Hardware virtualization
A: "Luisa Posani" <lposani@xxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Data: Lunedì 6 maggio 2013, 13:11
Hi Luisa,
great news, i use Remmina also. Great tool.
'disk = ' is used for defining VM's hard drive. I'm
not familiar with buildroot but as I read about CPIO
it's file archiver and Xen disk image should be in
RAW format. So you should extract rootfs.cpio to raw
disk image which could be created with dd. Example:
dd if=/dev/zero of=rootfs.img bs=1M count=10000
As with normal hard drive you can use fdisk make
some partitions on rootfs.img, format them and
extract rootfs.cpio there. Then you can set this
harddrive img in your xen config file for HVM style
(hda but it should apper as sda inside domU):
disk = [ 'file:/path/to/rootfs.img,hda,w' ]
Or you can pass the path to rootfs.img to
xen-create-image. If rootfs.cpio contains all files
including kernel image it should boot normally. As I
wrote I'm not familiar with buildroot thus you're
little bit on your own in this case and i'm sorry
for not being more straightforward but you're using
specific scenario. Maybe I'll save some time for
testing this and let you know later on.
Have a nice day
Jan
Dne
6.5.2013 12:38, Luisa Posani napsal(a):
Hi Jan
I launch my windows VM whit graphical
program named "Remmina Remote desktop
client" and it work well..
:-) :-) :-) :-)
Maybe I
was wrong
a few
parameters to launch
manual
gncviewer
Let me explain
what is my
main
problem.
I would
like to start a
virtual machine created
with
buildroot
standard
WHITOUT
XEN drivers in the VM.
I have some problems
creating the
configuration file for this virtual
machine.
I don't
know if I have to
work with
a ramdisk
(rootfs.cpio
created
by
buildroot)
or not and
what should be
the
configuration file under (p.e.) /etc/xen/VM_buildroot.
I don't
understand the meaning of
the 'disk =' in the
configuration file.
you know
a tutorial
that I
could follow to
create this file?
Xen provides the
xen-create-image command
to create
the file, but
I do not
know how to give
parameters
to the command (initrd
install-install-source
method
...)
Can you help
me?
Thanks in
advance.
Luisa
--- Gio 25/4/13, Jan Hejl <jh@xxxxxxxxxx>
ha scritto:
Da: Jan Hejl <jh@xxxxxxxxxx>
Oggetto: Re: [Xen-users] Hardware
virtualization
A: "Luisa Posani" <lposani@xxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Data: Giovedì 25 Aprile 2013, 11:19
Hi Luisa,
great, so you're cpu is capable for
running Xen. The reason why you
don't see it is explained here http://old-list-archives.xen.org/archives/html/xen-users/2010-09/msg00180.html.
Just to be clear. You've already
start your system with xen and tried
to start Windows Xp domU as this
guide describes, do you? And the
problem is that you can't connect to
your Windows XP domU with GNCVIEWER
or something else? Is your domU
running? What does the "xl start"
command say?
Thank you and have a nice day
Jan
Dne
24.4.2013 17:54, Luisa Posani
napsal(a):
Hi
if I make
/proc/cpuinfo flags
without xen I found vmx.
when I start PC with xen
flag vmx doesn't appare.
Why?
I would like use a guest
OS make with buildroot
"standard" without xen
driver.
I use http://wiki.xen.org/wiki/Xen_Beginners_Guide#Configure_GRUB_to_start_Xen
but doesn't work
correctly.
Doesn't work gvncviewer
for using a window XP iso
image and now I'm
compiling a buildroot
standard (qemu_x86
config).
Luisa
--- Mer 24/4/13, Jan
Hejl <jh@xxxxxxxxxx>
ha scritto:
Da: Jan Hejl <jh@xxxxxxxxxx>
Oggetto: Re: [Xen-users]
Hardware virtualization
A: "Luisa Posani" <lposani@xxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Data: Mercoledì 24
Aprile 2013, 17:08
Thank's
for your
indication.
I can't find
my cpu in your
list.
In my PC I can
enable the
virtualization
from BIOS.
I don't
understand the
difference.
Can you help
me please?
Luisa
--- Mer
24/4/13, Jan
Hejl <jh@xxxxxxxxxx>
ha scritto:
Da: Jan Hejl <jh@xxxxxxxxxx>
Oggetto: Re:
[Xen-users]
Hardware
virtualization
A: xen-users@xxxxxxxxxxxxx
Data:
Mercoledì 24
Aprile 2013,
10:35
Hello
Luisa,
here http://en.wikipedia.org/wiki/List_of_IOMMU-supporting_hardware
is a list
IOMMU
supporting
hardware, this
is a good
point to
start. IOMMU
is not
necessary for
virtualization,
but hardware
listed here
supports VM.
Jan
Dne
24.4.2013
09:43, Luisa
Posani
napsal(a):
Hi
It's my
first experience with
xen
I would like
to use a OS linux create by buildroot like a guest.
I have a PC
whit
virtualizatin
whit debian
distribution
and I install
xen-linux-sysem
on the PC.
In this PC a
VM doesn't
work
correctly.
I would like
to know if
exist a simple
tutorial to
configure PC
and VM .
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