Setup Xen 3.3.0 Ubuntu Intrepid Server Dom0 via build xen-kernel based on http://xenbits.xensource.com/ext/linux-2.6.27-xen.hg

This posting, in general, follows up Clayton Shepard’s “Howto Ubuntu Intrepid Ibex 8.10 Xen Dom0″([1]). However, several things went different. First, i had to disable XFS Support when building Novell’s kernel, otherwise build just exited with error. Second, i still had to comment out “xen” bridging initiated via /etc/xen/xend-config.sxp and manually add the bridge to /etc/network/interfaces configuration file. I didn’t take care of “xvc0” and used virtual frame buffer when tested CentOS 5.2 PV DomU and Ubuntu Intrepid Server HVM and PV DomUs at Xen 3.3.0 Intrepid Server Dom0 based on Novell’s kernel .View Setup Intrepid Server PV DomU via xen-image-create&debootstrap at Xen 3.3 Intrepid Server Dom0 with Novell’s Xen-ified kernel 2.6.27-5
***********************
Update on 01/05/2009
***********************
Install package xfslibs-dev (via Synaptic Manager) allows to
build Novell’s kernel with XFS support

# apt-get install ubuntu-xen-server \
build-essential libncurses5-dev gawk mercurial
# mkdir -p /home/boris/build/linux-2.6.27-xen
# cd /usr/src/
# hg clone http://xenbits.xensource.com/ext/linux-2.6.27-xen.hg
# cd linux-2.6.27-xen.hg
# make O=/home/boris/build/linux-2.6.27-xen/ \
menuconfig


Enabling Xen Support for x86_64 Kernels

Processor type and features —>
Subarchitecture Type (PC-compatible)
[*] Enable Xen compatible kernel

Domain-0 Kernel Config

Bus options (PCI etc.) —>
[*] PCI support
[ ] Xen PCI Frontend Debugging

Networking —>
Networking options —>
<*> 802.1d Ethernet Bridging
Only required by bridged networking.

XEN —>
[*] Privileged Guest (domain 0)
<*> Backend driver support
<*> Block-device backend driver
<*> Network-device backend driver
<*> PCI-device backend driver
PCI Backend Mode (Virtual PCI) —>
[*] Scrub memory before freeing it to Xen
[*] Disable serial port drivers
Xen version compatibility (3.0.4 and later)









Disabling SLUB Unqueued Allocator and 10000 Mbsec Ethernet ([1])






# make O=/home/boris/build/linux-2.6.27-xen/ -j12
# make O=/home/boris/build/linux-2.6.27-xen/ \
modules_install install
# depmod 2.6.27.5
# mkinitramfs -o /boot/initrd-2.6.27.5.img 2.6.27.5


Commented out all xen-bridge declarations in /etc/xen/xend-config.sxp and manually edited /etc/network/interfaces as follows .

root@IntrepidSRV:~# cat /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
iface lo inet loopback
# The primary network interface
auto eth1
iface eth1 inet dhcp
# Bridge definied
auto br0
iface br0 inet static
address 192.168.1.45
network 192.168.0.0
netmask 255.255.255.0
broadcast 192.168.1.255
gateway 192.168.1.1
bridge_ports eth1
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off

Rebooted the system with grub’s entry:-

title Xen 3.3 / Ubuntu 8.10, kernel 2.6.27-xen
uuid 9d96f605-1feb-4bfd-80b7-a32fa205479c

kernel /boot/xen-3.3.gz
module /boot/vmlinuz-2.6.27.5 root=/dev/sdb1 ro console=tty0
module /boot/initrd-2.6.27.5.img

and issued :-
root@IntrepidSRV:~# xm dmesg
__ __ _____ _____ ___
\ \/ /___ _ __ |___ / |___ / / _ \
\ // _ \ ‘_ \ |_ \ |_ \| | | |
/ \ __/ | | | ___) | ___) | |
/_/\_\___|_| |____(_)____(_)___/

(XEN) Xen version 3.3.0 (buildd@buildd) (gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu9) ) Mon Oct 6 18:11:58 UTC 2008
(XEN) Latest ChangeSet: unavailable
(XEN) Command line:
(XEN) Video information:
(XEN) VGA is text mode 80×25, font 8×16
(XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 0 MBR signatures
(XEN) Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 – 000000000009ec00 (usable)
(XEN) 000000000009ec00 – 00000000000a0000 (reserved)
(XEN) 00000000000e4000 – 0000000000100000 (reserved)
(XEN) 0000000000100000 – 00000000cff80000 (usable)
(XEN) 00000000cff80000 – 00000000cff8e000 (ACPI data)
(XEN) 00000000cff8e000 – 00000000cffe0000 (ACPI NVS)
(XEN) 00000000cffe0000 – 00000000d0000000 (reserved)
(XEN) 00000000fee00000 – 00000000fee01000 (reserved)
(XEN) 00000000ffe00000 – 0000000100000000 (reserved)
(XEN) 0000000100000000 – 0000000230000000 (usable)
(XEN) System RAM: 8191MB (8387704kB)
(XEN) ACPI: RSDP 000FBB80, 0014 (r0 ACPIAM)
(XEN) ACPI: RSDT CFF80000, 003C (r1 A_M_I_ OEMRSDT 10000730 MSFT 97)
(XEN) ACPI: FACP CFF80200, 0084 (r2 A_M_I_ OEMFACP 10000730 MSFT 97)
(XEN) ACPI: DSDT CFF805C0, 8E13 (r1 A0840 A0840001 1 INTL 20060113)
(XEN) ACPI: FACS CFF8E000, 0040
(XEN) ACPI: APIC CFF80390, 006C (r1 A_M_I_ OEMAPIC 10000730 MSFT 97)
(XEN) ACPI: MCFG CFF80400, 003C (r1 A_M_I_ OEMMCFG 10000730 MSFT 97)
(XEN) ACPI: OEMB CFF8E040, 0081 (r1 A_M_I_ AMI_OEM 10000730 MSFT 97)
(XEN) ACPI: HPET CFF893E0, 0038 (r1 A_M_I_ OEMHPET 10000730 MSFT 97)
(XEN) ACPI: OSFR CFF89420, 00B0 (r1 A_M_I_ OEMOSFR 10000730 MSFT 97)
(XEN) Xen heap: 14MB (14468kB)
(XEN) Domain heap initialised
(XEN) Processor #0 7:7 APIC version 20
(XEN) Processor #1 7:7 APIC version 20
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 3005.628 MHz processor.
(XEN) HVM: VMX enabled
(XEN) CPU0: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz stepping 06
(XEN) Booting processor 1/1 eip 8c000
(XEN) CPU1: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz stepping 06
(XEN) Total of 2 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) checking TSC synchronization across 2 CPUs: passed.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Brought up 2 CPUs
(XEN) I/O virtualisation disabled
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, lsb, paddr 0xffffffff80200000 -> 0xffffffff807d5cbc
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 0000000210000000->0000000220000000 (1964779 pages to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff80200000->ffffffff807d5cbc
(XEN) Init. ramdisk: ffffffff807d6000->ffffffff89ebae00
(XEN) Phys-Mach map: ffffffff89ebb000->ffffffff8ae38758
(XEN) Start info: ffffffff8ae39000->ffffffff8ae394a4
(XEN) Page tables: ffffffff8ae3a000->ffffffff8ae95000
(XEN) Boot stack: ffffffff8ae95000->ffffffff8ae96000
(XEN) TOTAL: ffffffff80000000->ffffffff8b000000
(XEN) ENTRY ADDRESS: ffffffff80200000
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type ‘CTRL-a’ three times to switch input to Xen)
(XEN) Freed 112kB init memory.
(XEN) mtrr: base(0xd0000000) is not aligned on a size(0xff00000) boundary

root@IntrepidSRV:~# xm info

host : IntrepidSRV
release : 2.6.27.5
version : #1 SMP Sat Jan 3 03:48:09 EST 2009
machine : x86_64
nr_cpus : 2
nr_nodes : 1
cores_per_socket : 2
threads_per_core : 1
cpu_mhz : 3005
hw_caps : bfebfbff:20100800:00000000:00000140:0008e3fd:00000000:00000001:00000000
virt_caps : hvm
total_memory : 8191
free_memory : 4112
node_to_cpu : node0:0-1
node_to_memory : node0:4112
xen_major : 3
xen_minor : 3
xen_extra : .0
xen_caps : 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
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : unavailable
cc_compiler : gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu9)
cc_compile_by : buildd
cc_compile_domain : buildd
cc_compile_date : Mon Oct 6 18:11:58 UTC 2008
xend_config_format : 4

root@IntrepidSRV:~# brctl show

bridge name bridge id STP enabled interfaces
br0 8000.001e8c25cca5 no eth1
pan0 8000.000000000000 no

root@IntrepidSRV:~# ifconfig
br0 Link encap:Ethernet HWaddr 00:1e:8c:25:cc:a5
inet addr:192.168.1.45 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21e:8cff:fe25:cca5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:472519 errors:0 dropped:0 overruns:0 frame:0
TX packets:1175245 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:32876475 (32.8 MB) TX bytes:1685377508 (1.6 GB)

eth0 Link encap:Ethernet HWaddr 00:1e:8c:25:d9:23
UP 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)
Interrupt:17

eth1 Link encap:Ethernet HWaddr 00:1e:8c:25:cc:a5
inet6 addr: fe80::21e:8cff:fe25:cca5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:27254 errors:0 dropped:0 overruns:0 frame:0
TX packets:26491 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:33954188 (33.9 MB) TX bytes:6661587 (6.6 MB)
Interrupt:16 Base address:0x2c00

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:76512 errors:0 dropped:0 overruns:0 frame:0
TX packets:76512 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:458352117 (458.3 MB) TX bytes:458352117 (458.3 MB)

wlan0 Link encap:Ethernet HWaddr 00:15:af:51:c2:c0
UP 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)

wmaster0 Link encap:UNSPEC HWaddr 00-15-AF-51-C2-C0-00-00-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)

I’ve also ran :-


ln -s /usr/lib/xen-tools/edgy.d /usr/lib/xen-tools/hardy.d
ln -s /usr/lib/xen-tools/edgy.d /usr/lib/xen-tools/intrepid.d


Testing Dom0 functionality , i didn’t follow [1] with xen-create-image along with debootstrap
and reproduced samples from [3] and [4].
Compiling Novell’s kernel with DomU support
does allow to test xen-create-image, but
Ubuntu Intrepid PV DomU will report kernel
2.6.27-5 via “uname -a”.
Intrepid Server PV DomU runtime snapshots:-





CentOS 5.2 PV DomU runtime snapshots:-





To enable serial console for Intrepid Server PV DomU loaded
it via profile :-

root@IntrepidSRV:/etc/xen/vm# cat intrepid.conf
name = "IntrepidPV"
kernel="/boot/vmlinuz-2.6.27-7-server"
ramdisk="/boot/initrd.img-2.6.27-7-server"
root="/dev/xvda1 ro"
extra = '2 console=hvc0'
vif = [ 'bridge=br0' ]
disk = [ 'phy:/dev/sdb3,hda,w']

previously created file /etc/event.d/hvc0 at DomU.
Then modified /boot/grub/menu.lst correspondently for
pygrub’s serial console profile:-

name = 'IntrepidPV'
bootloader="/usr/bin/pygrub"
memory = 4096
disk = ['phy:/dev/sdb3,hda,w']
vif = [ 'bridge=br0' ]
on_reboot = 'restart'
on_crash = 'restart'

Serial console output :-

pyGRUB version 0.6
┌────────────────────────────────────────────────────────────────────────┐
│ Ubuntu 8.10, kernel 2.6.27-7-server (hvc0)
│ Ubuntu 8.10, kernel 2.6.27-7-server
│ Ubuntu 8.10, kernel 2.6.27-7-server (recovery mode)
│ Ubuntu 8.10, memtest86+
└────────────────────────────────────────────────────────────────────────┘
Use the ^ and v keys to select which entry is highlighted.
Press enter to boot the selected OS. ‘e’ to edit the
commands before booting, ‘a’ to modify the kernel arguments
before booting, or ‘c’ for a command line.

Will boot selected entry in 6 seconds

Started domain IntrepidPV
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.27-7-server (buildd@yellow) (gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu10) ) #1 SMP Fri Oct 24 07:20:47 UTC 2008 (Ubuntu 2.6.27-7.14-server)
[ 0.000000] Command line: root=/dev/xvda1 ro 2 console=hvc0
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] ACPI in unprivileged domain disabled
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] Xen: 0000000000000000 – 00000000000a0000 (usable)
[ 0.000000] Xen: 00000000000a0000 – 0000000000100000 (reserved)
[ 0.000000] Xen: 0000000000100000 – 00000000020f7000 (usable)
[ 0.000000] Xen: 00000000020f7000 – 00000000028fa000 (reserved)
[ 0.000000] Xen: 00000000028fa000 – 0000000100000000 (usable)
[ 0.000000] last_pfn = 0x100000 max_arch_pfn = 0x3ffffffff
[ 0.000000] init_memory_mapping
[ 0.000000] last_map_addr: 100000000 end: 100000000
[ 0.000000] RAMDISK: 008b7000 – 020f7000
[ 0.000000] DMI not present or invalid.
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at 0000000000000000-0000000100000000
[ 0.000000] Bootmem setup node 0 0000000000000000-0000000100000000
[ 0.000000] NODE_DATA [0000000000001000 – 0000000000005fff]
[ 0.000000] bootmap [0000000000008000 – 0000000000027fff] pages 20
[ 0.000000] (6 early reservations) ==> bootmem [0000000000 – 0100000000]
[ 0.000000] #0 [0000000000 – 0000001000] BIOS data page ==> [0000000000 – 0000001000]
[ 0.000000] #1 [0000006000 – 0000008000] TRAMPOLINE ==> [0000006000 – 0000008000]
[ 0.000000] #2 [00028fa000 – 0002913000] XEN PAGETABLES ==> [00028fa000 – 0002913000]
[ 0.000000] #3 [0000200000 – 00008b6f9c] TEXT DATA BSS ==> [0000200000 – 00008b6f9c]
[ 0.000000] #4 [00008b7000 – 00020f7000] RAMDISK ==> [00008b7000 – 00020f7000]
[ 0.000000] #5 [0002913000 – 00030fc000] PGTABLE ==> [0002913000 – 00030fc000]
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000000 -> 0x00001000
[ 0.000000] DMA32 0x00001000 -> 0x00100000
[ 0.000000] Normal 0x00100000 -> 0x00100000
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[3] active PFN ranges
[ 0.000000] 0: 0x00000000 -> 0x000000a0
[ 0.000000] 0: 0x00000100 -> 0x000020f7
[ 0.000000] 0: 0x000028fa -> 0x00100000
[ 0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] No local APIC present
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 – 0000000000100000
[ 0.000000] PM: Registered nosave memory: 00000000020f7000 – 00000000028fa000
[ 0.000000] PCI: Warning: Cannot find a gap in the 32bit address range
[ 0.000000] PCI: Unassigned devices with 32bit resource registers may break!
[ 0.000000] Allocating PCI resources starting at 100200000 (gap: 100100000:400000)
[ 0.000000] PERCPU: Allocating 64928 bytes of per cpu data
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 1028324
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: root=/dev/xvda1 ro 2 console=hvc0
[ 0.000000] Initializing CPU#0
[ 0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[ 0.000000] Detected 3005.554 MHz processor.
[ 0.010000] Console: colour dummy device 80×25
[ 0.010000] console [tty0] enabled
[ 0.010000] console [hvc0] enabled
[ 0.010000] Checking aperture…
[ 0.010000] No AGP bridge found
[ 0.010000] Memory: 4079852k/4194304k available (3110k kernel code, 105864k reserved, 1573k data, 536k init)
[ 0.010000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.010000] installing Xen timer for CPU 0
[ 0.010000] Calibrating delay loop (skipped), value calculated using timer frequency.. 6011.10 BogoMIPS (lpj=30055540)
[ 0.010000] Security Framework initialized
[ 0.010000] SELinux: Disabled at boot.
[ 0.010000] AppArmor: AppArmor initialized
[ 0.010000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[ 0.010000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.010000] Mount-cache hash table entries: 256
[ 0.010000] Initializing cgroup subsys ns
[ 0.010000] Initializing cgroup subsys cpuacct
[ 0.010000] Initializing cgroup subsys memory
[ 0.010000] CPU: L1 I cache: 32K, L1 D cache: 32K
[ 0.010000] CPU: L2 cache: 6144K
[ 0.010000] CPU 0/0 -> Node 0
[ 0.010000] CPU: Physical Processor ID: 0
[ 0.010000] CPU: Processor Core ID: 0
[ 0.010000] SMP alternatives: switching to UP code
[ 0.018189] Freeing SMP alternatives: 24k freed
[ 0.018246] cpu 0 spinlock event irq 1
[ 0.018307] Brought up 1 CPUs
[ 0.018532] net_namespace: 1552 bytes
[ 0.018538] Booting paravirtualized kernel on Xen
[ 0.018542] Xen version: 3.3.0 (preserve-AD)
[ 0.018642] Grant table initialized
[ 0.038670] Time: 165:165:165 Date: 165/165/65
[ 0.038693] NET: Registered protocol family 16
[ 0.038913] PCI: Fatal: No config space access function found
[ 0.040317] ACPI: Interpreter disabled.
[ 0.040323] Linux Plug and Play Support v0.97 (c) Adam Belay
[ 0.040356] pnp: PnP ACPI: disabled
[ 0.040366] xen_balloon: Initialising balloon driver.
[ 0.040366] PCI: System does not support PCI
[ 0.040366] PCI: System does not support PCI
[ 0.070088] NET: Registered protocol family 8
[ 0.070097] NET: Registered protocol family 20
[ 0.070149] NetLabel: Initializing
[ 0.070153] NetLabel: domain hash size = 128
[ 0.070156] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.070170] NetLabel: unlabeled traffic allowed by default
[ 0.070177] PCI-GART: No AMD northbridge found.
[ 0.070514] tracer: 1286 pages allocated for 65536 entries of 80 bytes
[ 0.070518] actual entries 65586
[ 0.070605] AppArmor: AppArmor Filesystem Enabled
[ 0.071020] NET: Registered protocol family 2
[ 0.160223] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.161491] TCP established hash table entries: 524288 (order: 11, 8388608 bytes)
[ 0.164402] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[ 0.164959] TCP: Hash tables configured (established 524288 bind 65536)
[ 0.164965] TCP reno registered
[ 0.190098] NET: Registered protocol family 1
[ 0.190207] checking if image is initramfs… it is
[ 0.209074] Freeing initrd memory: 24832k freed
[ 0.216650] platform rtc_cmos: registered platform RTC device (no PNP device found)
[ 0.216982] audit: initializing netlink socket (disabled)
[ 0.216998] type=2000 audit(1230996343.487:1): initialized
[ 0.221287] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.223729] VFS: Disk quotas dquot_6.5.1
[ 0.223815] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.223912] msgmni has been set to 8240
[ 0.224013] io scheduler noop registered
[ 0.224017] io scheduler anticipatory registered
[ 0.224021] io scheduler deadline registered (default)
[ 0.224136] io scheduler cfq registered
[ 0.251976] Linux agpgart interface v0.103
[ 0.251988] Serial: 8250/16550 driver4 ports, IRQ sharing enabled
[ 0.253877] brd: module loaded
[ 0.253957] input: Macintosh mouse button emulation as /devices/virtual/input/input0
[ 0.254140] PNP: No PS/2 controller found. Probing ports directly.
[ 0.254964] i8042.c: No controller found.
[ 0.270753] mice: PS/2 mouse device common for all mice
[ 0.270807] rtc_cmos: probe of rtc_cmos failed with error -16
[ 0.270882] cpuidle: using governor ladder
[ 0.270886] cpuidle: using governor menu
[ 0.271134] TCP cubic registered
[ 0.271151] IO APIC resources could be not be allocated.
[ 0.271313] registered taskstats version 1
[ 0.271323] XENBUS: Device with no driver: device/vbd/768
[ 0.271327] XENBUS: Device with no driver: device/vif/0
[ 0.271330] XENBUS: Device with no driver: device/console/0
[ 0.271341] Magic number: 1:252:3141
[ 0.271429] /build/buildd/linux-2.6.27/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 0.271435] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 0.271439] EDD information not available.
[ 0.271459] Freeing unused kernel memory: 536k freed
[ 0.271604] Write protecting the kernel read-only data: 4344k
Loading, please wait…
Couldnt get a file descriptor referring to the console
Begin: Loading essential drivers… …
[ 0.324097] fuse init (API version 7.9)
[ 0.400973] thermal: Unknown symbol acpi_processor_set_thermal_limit
Done.
Begin: Running /scripts/init-premount …
Done.
Begin: Mounting root file system… …
Begin: Running /scripts/local-top …
Done.
Begin: Waiting for root file system… …
[ 0.494753] blkfront: xvda: barriers enabled
[ 0.495158] xvda: xvda1 xvda2
Done.
Begin: Running /scripts/local-premount …
Begin: Waiting for resume device… …
Done.
Done.
[ 6.440555] kjournald starting. Commit interval 5 seconds
[ 6.440574] EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom …
Done.
Done.
Begin: Running /scripts/init-bottom …
Done.
* Setting preliminary keymap… [ OK ]
* Setting the system clock
Cannot access the Hardware Clock via any known method.
Use the –debug option to see the details of our search for an access method.
* Unable to set System Clock to: Sat Jan 3 15:25:50 UTC 2009
* Starting basic networking… [ OK ]
* Starting kernel event manager… [ 7.578219] udevd version 124 started
[ OK ]
* Loading hardware drivers… [ 7.797709] Initialising Xen virtual ethernet driver.
[ 7.809475] input: PC Speaker as /devices/platform/pcspkr/input/input1
[ OK ]
* Setting the system clock
Cannot access the Hardware Clock via any known method.
Use the –debug option to see the details of our search for an access method.
* Unable to set System Clock to: Sat Jan 3 15:25:52 UTC 2009
* Loading kernel modules… [ 8.864441] loop: module loaded
[ 8.925939] lp: driver loaded but no devices found
[ OK ]
* Setting kernel variables (/etc/sysctl.conf)… [ OK ]
* Setting kernel variables (/etc/sysctl.d/10-console-messages.conf)… [ OK ]
* Setting kernel variables (/etc/sysctl.d/10-network-security.conf)… [ OK ]
* Setting kernel variables (/etc/sysctl.d/10-process-security.conf)… [ OK ]
* Setting kernel variables (/etc/sysctl.d/10-tcp-timestamps-workaround.c[ OK ]
* Activating swap… [ OK ]
* Checking root file system… fsck 1.41.3 (12-Oct-2008)
/dev/xvda1: clean, 23298/960992 files, 237826/3837519 blocks
[ OK ]
* Checking file systems… fsck 1.41.3 (12-Oct-2008)
[ OK ]
* Mounting local filesystems… [ OK ]
* Activating swapfile swap… [ OK ]
$Mounting securityfs on /sys/kernel/security: done.
Loading AppArmor profiles : done.
* Skipping firewall: ufw (not enabled)… [ OK ]
* Configuring network interfaces… [ OK ]
* Setting up console font and keymap… [ OK ]
* Starting system log daemon… [ OK ]
* Starting kernel log daemon… [ OK ]
* Starting system message bus dbus [ OK ]
* Starting OpenBSD Secure Shell server sshd [ OK ]
* Starting deferred execution scheduler atd [ OK ]
* Starting periodic command scheduler crond [ OK ]

Ubuntu 8.10 IntrepidPVS hvc0

IntrepidPVS login: root
Password:
Last login: Sat Jan 3 10:15:58 EST 2009 on hvc0
Linux IntrepidPVS 2.6.27-7-server #1 SMP Fri Oct 24 07:20:47 UTC 2008 x86_64

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To access official Ubuntu documentation, please visit:
http://help.ubuntu.com/
root@IntrepidPVS:~# ssh root@192.168.1.45
root@192.168.1.45’s password:
Linux IntrepidSRV 2.6.27.5 #1 SMP Sat Jan 3 03:48:09 EST 2009 x86_64

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To access official Ubuntu documentation, please visit:
http://help.ubuntu.com/

System information as of Sat Jan 3 10:20:01 EST 2009

System load: 0.05 Memory usage: 23% Processes: 142
Usage of /: 50.2% of 27.50GB Swap usage: 0% Users logged in: 1

Graph this data and manage this system at https://landscape.canonical.com/
Last login: Sat Jan 3 05:26:30 2009 from 192.168.1.36

Loading CentOS 5.2 DomU via serial console:-

root@IntrepidSRV:/etc/xen/vm# cat rhel52.conf
name = “RHEL52PV”
memory = 2048
bootloader=”/usr/bin/pygrub”
vif = [ ‘bridge=br0’ ]
disk = [ ‘phy:/dev/sdb5,hda,w’]

root@IntrepidSRV:/etc/xen/vm#xm create -c rhel52.conf

pyGRUB version 0.6
┌────────────────────────────────────────────────────────────────────────┐
│ CentOS (2.6.18-92.el5xen)
└────────────────────────────────────────────────────────────────────────┘
Use the ^ and v keys to select which entry is highlighted.
Press enter to boot the selected OS. ‘e’ to edit the
commands before booting, ‘a’ to modify the kernel arguments
before booting, or ‘c’ for a command line.

Will boot selected entry in 1 seconds

Started domain RHEL52PV
PCI: Fatal: No PCI config space access function found
rtc: IRQ 8 is not free.
PCI: Fatal: No PCI config space access function found
rtc: IRQ 8 is not free.
i8042.c: No controller found.
Red Hat nash version 5.1.19.6 starting
Reading all physical volumes. This may take a while…
Found volume group “VolGroup00” using metadata type lvm2
2 logical volume(s) in volume group “VolGroup00” now active
Welcome to CentOS release 5.2 (Final)
Press ‘I’ to enter interactive startup.
Cannot access the Hardware Clock via any known method.
Use the –debug option to see the details of our search for an access method.
Setting clock (utc): Sat Jan 3 11:02:45 EST 2009 [ OK ]
Starting udev: [ OK ]
Loading default keymap (us): [ OK ]
Setting hostname Rhel52pvm: [ OK ]
Setting up Logical Volume Management: 2 logical volume(s) in volume group “VolGroup00” now active
[ OK ]
Checking filesystems
Checking all file systems.
[/sbin/fsck.ext3 (1) — /] fsck.ext3 -a /dev/VolGroup00/LogVol00
/dev/VolGroup00/LogVol00: clean, 171994/3482208 files, 1226153/3481600 blocks
[/sbin/fsck.ext3 (1) — /boot] fsck.ext3 -a /dev/hda1
/boot: clean, 36/26104 files, 16619/104388 blocks
[ OK ]
Remounting root filesystem in read-write mode: [ OK ]
Mounting local filesystems: [ OK ]
Enabling local filesystem quotas: [ OK ]
Enabling /etc/fstab swaps: [ OK ]
INIT: Entering runlevel: 5
Entering non-interactive startup
Applying Intel CPU microcode update: [FAILED]
Starting monitoring for VG VolGroup00: 2 logical volume(s) in volume group “VolGroup00” monitored
[ OK ]
Starting background readahead: [ OK ]
Checking for hardware changes [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0:
Determining IP information for eth0… done.
[ OK ]
Starting auditd: [ OK ]
Starting system logger: [ OK ]
Starting kernel logger: [ OK ]
Starting irqbalance: [ OK ]
Starting portmap: [ OK ]
Starting NFS statd: [ OK ]
Starting RPC idmapd: [ OK ]
Starting system message bus: [ OK ]
[ OK ] Bluetooth services:[ OK ]
Mounting other filesystems: [ OK ]
Starting PC/SC smart card daemon (pcscd): [ OK ]
Starting hidd: [ OK ]
Starting autofs: Loading autofs4: [ OK ]
Starting automount: [ OK ]
[ OK ]
Starting hpiod: [ OK ]
Starting hpssd: [ OK ]
Starting sshd: [ OK ]
Starting cups: [ OK ]
Starting xinetd: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
Starting console mouse services: [ OK ]
Starting crond: [ OK ]
Starting xfs: [ OK ]
Starting anacron: [ OK ]
Starting atd: [ OK ]
Starting background readahead: [ OK ]
Starting yum-updatesd: [ OK ]
Starting Avahi daemon… [ OK ]
Starting HAL daemon: [ OK ]
Starting smartd: [ OK ]

CentOS release 5.2 (Final)
Kernel 2.6.18-92.el5xen on an x86_64

Rhel52pvm login: root
Password:
Last login: Sat Jan 3 10:55:27 on :0
[root@Rhel52pvm ~]# ssh root@192.168.1.45
root@192.168.1.45’s password:
Linux IntrepidSRV 2.6.27.5 #1 SMP Sat Jan 3 03:48:09 EST 2009 x86_64

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To access official Ubuntu documentation, please visit:
http://help.ubuntu.com/

System information as of Sat Jan 3 11:00:01 EST 2009

System load: 0.06 Memory usage: 44% Processes: 142
Usage of /: 50.2% of 27.50GB Swap usage: 0% Users logged in: 1

Graph this data and manage this system at https://landscape.canonical.com/
Last login: Sat Jan 3 10:29:00 2009 from 192.168.1.39
root@IntrepidSRV:~#

References
1.http://cwshep.blogspot.com/2008/12/howto-ubuntu-intrepid-ibex-810-xen-dom0.html
2.http://www.gentoo.org/doc/en/xen-guide.xml#doc_chap2
3.http://lxer.com/module/newswire/view/110642/index.html
4.http://lxer.com/module/newswire/view/114310/index.html