From: Fabian Flägel <fabigant@xxxxxxxxxxxxxx>
Subject: [Xen-users] HVM Linux DomU doesn't start
To: "XEN Mailing List" <xen-users@xxxxxxxxxxxxxxxxxxx>
Date: Wednesday, February 25, 2009, 11:55 AM
Hi all,
we are running two servers with Ubuntu 8.04 LTS Server with Xen 3.2 and two dual-core CPUs:
processor : {0-3}
vendor_id : AuthenticAMD
cpu family : 15
model : 65
model name : Dual-Core AMD Opteron(tm) Processor 2218 HE
stepping : 3
cpu MHz : 2613.394
cache size : 1024 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
bogomips : 5227.99
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
As we can see, svm is available and hvm should be possible. See also this:
# cat /sys/hypervisor/properties/capabilities
xen-3.0-x86\_64 xen-3.0-x86\_32p hvm-3.0-x86\_32 /
hvm-3.0-x86\_32p hvm-3.0-x86\_64
We are trying to build a HVM Linux with a handmade 2.6.16.5 Kernel which includes some unknown changes. This Kernel is a requirement and there are no xen PV-patches for a kernel that old. We try to boot a CD-ROM iso first, but even this doesn't work.
*********************************************************
# losetup -f /var/xen/ubuntu-6.06.2-server-i386.iso
# losetup -a
**********************************************************
This is our Config:
name='hvmtest'
memory = '1024'
vcpus = 1
kernel= "/usr/lib/xen/boot/hvmloader"
builder = "hvm"
# disk = [ 'file:/var/xen/ubuntu-6.06.2-server-i386.iso,hdc:cdrom,r']
######################################
disk=[phy:/dev/loop0,hdc:cdrom,r',phy:/dev/sdaX,hda,w']
######################################
device_model = "/usr/lib/xen/bin/qemu-dm"
boot='dc'
vnc=1
vnclisten='0.0.0.0'
vif = [ 'type=ioemu,bridge=br-core-road','type=ioemu,bridge=br-mgnt' ]
on_reboot = 'restart'
on_crash = 'preserve'
Hvmloader and qemu-dm exists, but xm create fails with:
Using config file "/var/xen/domains/hvmtest/hvmtest.cfg".
Error: Device 2080 (vbd) could not be connected. losetup -r /dev/loop1 /var/xen/ubuntu-6.06.2-server-i386.iso failed
but:
# losetup -a
/dev/loop0: [0901]:278531 (/var/xen/ubuntu-6.06.2-server-i386.iso)
I am a bit confused now. What are we doing wrong?
Best regards,
Fabian
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