Re: [Xen-users] Re: [Xen-devel] Xen document day (Oct 12 or 26)

[bofh <goodb0fh@xxxxxxxxx>]

On Fri, Oct 21, 2011 at 7:33 PM, Joseph Glanville
<joseph.glanville@xxxxxxxxxxxxxx> wrote:
> On 22 October 2011 02:28, Lars Kurth <lars.kurth@xxxxxxx> wrote:
>> On 21/10/2011 04:44, Joseph Glanville wrote:
>>> Alot of us take for granted that we have been using Xen for a long time
>>> and many of these things come so naturally to us - whereas from the outside
>>> it all seems too difficult.
>>
>> I think what you seem to be saying is that there would be extremely high
>> value in having a "Getting started" guide and some other entry level
>> documentation (even if just an index page) accessible from the wiki front
>> page.
>
> Precisely, documenting the more advanced features of Xen seems to be
> something that we can approach over time. Beginner documentation is
> immeadiately lacking and seems to be an easier target that would benefit
> more people.

Yes please!!!!  For example, I just created a VM:

---/etc/xen/win7.cfg---
kernel = '/usr/lib/xen-4.1/boot/hvmloader'
builder = 'hvm'
memory = '4096'
device_model = '/usr/lib/xen-4.1/bin/qemu-dm'
vcpus=8

# Disk
disk = ['file:/home/xen/domains/win7/win7.img,ioemu:hda,w',
'file:/home/me/Downloads/installers_windows/en_windows_7_enterprise_x64_dvd_x15-70749.iso,ioemu:hdc:cdrom,r',
'file:/home/me/cdr.iso,ioemu:hdd:cdrom,r' ]

# Hostname
name = 'win7'

# Networking
vif = ['type=ioemu, bridge=br0' ]

# Behavior
boot = 'd'
vnc = 1
vncviewer= 1
sdl = 0
--------------------
-----/etc/network/interfaces-----
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo br0 virtual0 nat0
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp

# The bridge for Xen virtual machines
iface br0 inet manual
    bridge_ports eth0
    bridge_maxwait 0

# The bridge for non-routed network
iface virtual0 inet manual
    bridge_maxwait 0

# The bridge for natted stuff
iface nat0 inet manual
    bridge_maxwait 0
----------------------------
# ifconfig -a
br0       Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet6 addr: fe80::f2de:f1ff:fe40:b2a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36354 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6672740 (6.3 MiB)  TX bytes:3857 (3.7 KiB)

eth0      Link encap:Ethernet  HWaddr f0:de:f1:40:0b:2a
          inet addr:10.10.20.135  Bcast:10.10.21.255  Mask:255.255.254.0
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:4044776 errors:0 dropped:87 overruns:0 frame:0
          TX packets:27576 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:605780353 (577.7 MiB)  TX bytes:4929467 (4.7 MiB)
          Interrupt:20 Memory:f2600000-f2620000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3323354 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3323354 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:33084455363 (30.8 GiB)  TX bytes:33084455363 (30.8 GiB)

tap5.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:126 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:16348 (15.9 KiB)  TX bytes:4995 (4.8 KiB)

vif5.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0     Link encap:Ethernet  HWaddr 00:24:d7:8f:52:a0
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

# brctl show
br0             8000.feffffffffff       no              tap5.0
                                                        vif5.0
# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 11935     8     r-----   61565.3
win7                                         5  4099     8     -b----      69.7


I could have sworn I have everything done right, but I found out I'm
missing a few pieces of information.

1)  How do I create a second interface in dom0 to interface with br0?
2)  What Windows drivers should I use, if any?
3)  How do I insert a USB thumbdrive into the VM?
4)  xm has "start".  xl doesn't seem to have "start"?
5)  For disks, is ioemu the best to use?  I'm just using a file on the
filesystem as the VM's drive.

Sorry to interrupt this thread, but hopefully you experienced xen
users can see what a newbie to xen faces

-- 
http://www.glumbert.com/media/shift
http://www.youtube.com/watch?v=tGvHNNOLnCk
"This officer's men seem to follow him merely out of idle curiosity."
-- Sandhurst officer cadet evaluation.
"Securing an environment of Windows platforms from abuse - external or
internal - is akin to trying to install sprinklers in a fireworks
factory where smoking on the job is permitted."  -- Gene Spafford
learn french:  http://www.youtube.com/watch?v=30v_g83VHK4

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