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[Xen-users] Full Virtualization: linux in linux?

From: Alex Iribarren <Alex.Iribarren@xxxxxxx>

Date: Wed, 16 Aug 2006 17:30:02 +0200

Delivery-date: Wed, 16 Aug 2006 08:31:04 -0700

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Keywords: CERN SpamKiller Note: -49 Charset: west-latin

List-id: Xen user discussion <xen-users.lists.xensource.com>

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Hi, I'm doing some tests of Xen with the latest Intel processors and I'd like to run an unmodified linux inside a virtual machine. If possible, I'd like to be able to install this OS (a version of Scientific Linux, in case you're interested) from our PXE servers, but I can also install it from a DVD image. I've seen several HOWTOs on running Windows like this, so I thought it would be pretty similar. I basically replaced the Windows CD image for an SL image, but I haven't been able to get it to work. I get this: xenmaster ~ # xm create -c /etc/xen/slc43.hvm Using config file "/etc/xen/slc43.hvm". Started domain SLC43 xenconsole: Could not read tty from store: No such file or directory xenmaster ~ # xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 343 4 r----- 11909.8 SLC43 36 2048 1 -b---- 0.0 The virtual machine is apparently up, but I can't (or don't know how to) connect to it, it just sits there blocked. The same thing happens if I use SDL and VNC. I've googled to see if I could fix that problem with xencosole, but with no results. I've downloaded a Debian image from jailtime.org and that works fine (although I don't see the kernel boot messages, which is kind of odd). Can anyone offer some tips? Thanks, Alex ---- Some more info ---- xenmaster ~ # xm info host : xenmaster release : 2.6.16.26-xen version : #10 SMP Mon Aug 14 20:34:44 CEST 2006 machine : i686 nr_cpus : 4 nr_nodes : 1 sockets_per_node : 2 cores_per_socket : 2 threads_per_core : 1 cpu_mhz : 2992 hw_caps : bfebfbff:20100000:00000000:00000140:0004e3bd:00000000:00000001 total_memory : 2555 free_memory : 132 xen_major : 3 xen_minor : 0 xen_extra : .2 xen_caps : xen-3.0-x86_32 hvm-3.0-x86_32 platform_params : virt_start=0xfc000000 xen_changeset : Sat Apr 8 12:14:27 2006 +0100 9598:1bce05ff1e52 cc_compiler : gcc version 3.4.6 (Gentoo 3.4.6-r1, ssp-3.4.5-1.0, pie-8.7.9) cc_compile_by : root cc_compile_domain : cc_compile_date : Mon Aug 14 19:29:17 CEST 2006 (from /var/log/xend.log) [2006-08-16 17:13:44 xend.XendDomainInfo] DEBUG (XendDomainInfo:178) XendDomainInfo.create(['vm', ['name', 'SLC43'], ['memory', 2048], ['vcpus', 1], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['args', 'VNC_VIEWER=127.0.0.1:5501 '], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['vcpus', 1], ['cdrom', '/root/SLC43_i386_dvd.iso'], ['boot', 'd'], ['vnc', 1], ['vncviewer', 1], ['xauthority', '/root/.Xauthority']]], ['device', ['vbd', ['uname', 'phy:/dev/xenfs/slc4root'], ['dev', 'ioemu:hda'], ['mode', 'w']]], ['device', ['vif', ['bridge', 'xenbr0'], ['mac', '00:04:23:D1:9E:4A'], ['type', 'ioemu']]]]) [2006-08-16 17:13:45 xend.XendDomainInfo] DEBUG (XendDomainInfo:284) parseConfig: config is ['vm', ['name', 'SLC43'], ['memory', 2048], ['vcpus', 1], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['args', 'VNC_VIEWER=127.0.0.1:5501 '], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['vcpus', 1], ['cdrom', '/root/SLC43_i386_dvd.iso'], ['boot', 'd'], ['vnc', 1], ['vncviewer', 1], ['xauthority', '/root/.Xauthority']]], ['device', ['vbd', ['uname', 'phy:/dev/xenfs/slc4root'], ['dev', 'ioemu:hda'], ['mode', 'w']]], ['device', ['vif', ['bridge', 'xenbr0'], ['mac', '00:04:23:D1:9E:4A'], ['type', 'ioemu']]]] [2006-08-16 17:13:45 xend.XendDomainInfo] DEBUG (XendDomainInfo:380) parseConfig: result is {'ssidref': None, 'uuid': None, 'on_crash': None, 'on_reboot': None, 'image': ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['args', 'VNC_VIEWER=127.0.0.1:5501 '], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['vcpus', 1], ['cdrom', '/root/SLC43_i386_dvd.iso'], ['boot', 'd'], ['vnc', 1], ['vncviewer', 1], ['xauthority', '/root/.Xauthority']], 'on_poweroff': None, 'cpus': None, 'name': 'SLC43', 'backend': [], 'vcpus': 1, 'cpu_weight': None, 'vcpu_avail': None, 'memory': 2048, 'device': [('vbd', ['vbd', ['uname', 'phy:/dev/xenfs/slc4root'], ['dev', 'ioemu:hda'], ['mode', 'w ']]), ('vif', ['vif', ['bridge', 'xenbr0'], ['mac', '00:04:23:D1:9E:4A'], ['type', 'ioemu']])], 'bootloader': None, 'cpu': None, 'maxmem': None} [2006-08-16 17:13:45 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164) XendDomainInfo.construct: None 0 [2006-08-16 17:13:46 xend.XendDomainInfo] DEBUG (XendDomainInfo:1196) XendDomainInfo.initDomain: 36 1.0 [2006-08-16 17:13:47 xend] DEBUG (image:266) args: cdrom, val: /root/SLC43_i386_dvd.iso [2006-08-16 17:13:47 xend] DEBUG (image:266) args: boot, val: d [2006-08-16 17:13:47 xend] DEBUG (image:266) args: fda, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: fdb, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: nic-ne2000, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: enable-audio, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: localtime, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: serial, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: std-vga, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: isa, val: None [2006-08-16 17:13:47 xend] DEBUG (image:266) args: vcpus, val: 1 [2006-08-16 17:13:47 xend] DEBUG (balloon:126) Balloon: free 2182; need 2049; done. [2006-08-16 17:13:48 xend] INFO (image:135) buildDomain os=hvm dom=36 vcpus=1 [2006-08-16 17:13:48 xend] DEBUG (image:224) dom = 36 [2006-08-16 17:13:48 xend] DEBUG (image:225) image = /usr/lib/xen/boot/hvmloader [2006-08-16 17:13:48 xend] DEBUG (image:226) store_evtchn = 1 [2006-08-16 17:13:48 xend] DEBUG (image:227) memsize = 2048 [2006-08-16 17:13:48 xend] DEBUG (image:228) vcpus = 1 [2006-08-16 17:13:48 xend] DEBUG (image:229) pae = 0 [2006-08-16 17:13:48 xend] DEBUG (image:230) acpi = 0 [2006-08-16 17:13:48 xend] DEBUG (image:231) apic = 0 [2006-08-16 17:13:48 xend] DEBUG (image:396) hvm shutdown watch registered [2006-08-16 17:13:49 xend] DEBUG (blkif:24) exception looking up device number for hda: [Errno 2] No such file or directory: '/dev/hda' [2006-08-16 17:13:49 xend] DEBUG (DevController:103) DevController: writing {'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vbd/36/768'} to /local/domain/36/device/vbd/768. [2006-08-16 17:13:49 xend] DEBUG (DevController:105) DevController: writing {'domain': 'SLC43', 'frontend': '/local/domain/36/device/vbd/768', 'dev': 'ioemu:hda', 'state': '1', 'params': '/dev/xenfs/slc4root', 'mode': 'w', 'frontend-id': '36', 'type': 'phy'} to /local/domain/0/backend/vbd/36/768. [2006-08-16 17:13:49 xend] DEBUG (DevController:103) DevController: writing {'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vif/36/0'} to /local/domain/36/device/vif/0. [2006-08-16 17:13:49 xend] DEBUG (DevController:105) DevController: writing {'bridge': 'xenbr0', 'domain': 'SLC43', 'handle': '0', 'script': '/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': '/local/domain/36/device/vif/0', 'mac': '00:04:23:D1:9E:4A', 'frontend-id': '36', 'type': 'ioemu'} to /local/domain/0/backend/vif/36/0. [2006-08-16 17:13:49 xend] INFO (image:355) spawning device models: /usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-vncconnect', '127.0.0.1:5501', '-d', '36', '-m', '2048', '-cdrom', '/root/SLC43_i386_dvd.iso', '-boot', 'd', '-vcpus', '1', '-domain-name', 'SLC43', '-hda', '/dev/xenfs/slc4root', '-macaddr', '00:04:23:D1:9E:4A', '-bridge', 'xenbr0', '-nics', '1', '-vnc', '-k', 'en-us', '-vncport', '5936'] [2006-08-16 17:13:49 xend] INFO (image:357) device model pid: 28580 [2006-08-16 17:13:49 xend.XendDomainInfo] DEBUG (XendDomainInfo:671) Storing VM details: {'ssidref': '0', 'uuid': 'b497d350-07ce-cfd7-dc5b-d6bc584b7421', 'on_reboot': 'restart', 'start_time': '1155741229.36', 'on_poweroff': 'destroy', 'name': 'SLC43', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '2048', 'on_crash': 'restart', 'image': "(hvm (kernel /usr/lib/xen/boot/hvmloader) (args 'VNC_VIEWER=127.0.0.1:5501 ') (device_model /usr/lib/xen/bin/qemu-dm) (vcpus 1) (cdrom /root/SLC43_i386_dvd.iso) (boot d) (vnc 1) (vncviewer 1) (xauthority /root/.Xauthority))", 'maxmem': '2048'} [2006-08-16 17:13:49 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) Storing domain details: {'console/port': '2', 'name': 'SLC43', 'console/limit': '1048576', 'vm': '/vm/b497d350-07ce-cfd7-dc5b-d6bc584b7421', 'domid': '36', 'cpu/0/availability': 'online', 'memory/target': '2097152', 'store/ring-ref': '345485', 'store/port': '1'} [2006-08-16 17:13:49 xend] DEBUG (image:419) hvm_shutdown fired, shutdown reason=None [2006-08-16 17:13:49 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) XendDomainInfo.handleShutdownWatch [2006-08-16 17:13:49 xend] DEBUG (DevController:132) Waiting for devices vif. [2006-08-16 17:13:49 xend] DEBUG (DevController:138) Waiting for 0. [2006-08-16 17:13:49 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vif/36/0/hotplug-status. [2006-08-16 17:13:53 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vif/36/0/hotplug-status. [2006-08-16 17:13:53 xend] DEBUG (DevController:417) hotplugStatusCallback 1. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices usb. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices vbd. [2006-08-16 17:13:53 xend] DEBUG (DevController:138) Waiting for 768. [2006-08-16 17:13:53 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vbd/36/768/hotplug-status. [2006-08-16 17:13:53 xend] DEBUG (DevController:403) hotplugStatusCallback /local/domain/0/backend/vbd/36/768/hotplug-status. [2006-08-16 17:13:53 xend] DEBUG (DevController:417) hotplugStatusCallback 1. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices irq. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices pci. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices ioports. [2006-08-16 17:13:53 xend] DEBUG (DevController:132) Waiting for devices vtpm. [2006-08-16 17:13:53 xend] INFO (XendDomain:363) Domain SLC43 (36) unpaused. (and then it just stops there until I kill the VM)

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