[Xen-users] setting up Ubuntu DomU on CentOS Dom0

["Donald Plummer" <donald@xxxxxxxxxxxx>]

So, I'm trying to setup an Ubuntu gutsy amd64 DomU on my CentOS 5.1
x86_64 Dom0.  Unfortunately, jailtime.org doesn't have an ubuntu amd64
image, so I've used debootstrap to setup the image. To do that, I
installed Ubuntu 7.10 amd64 server on a spare machine, installed all the
xen bits, and ran debootstrap:
# sudo debootstrap --arch amd64 gutsy /mnt/gutsy/

Copied the kernel modules (all of them, since I wasn't exactly sure what
I'd need):
# sudo cp -a /lib/modules/2.6.* /mnt/gutsy/lib/modules/

Setup the domU config (after copying the image to the CentOS Dom0)
-----
kernel = "/xen/ubuntu/vmlinuz-2.6.22-14-xen"
ramdisk = "/xen/ubuntu/initrd.img-2.6.22-14-xen"
memory = "512"
name = "gutsy-test"
vif = ['bridge=xenbr0']
disk = ['phy:/dev/VolGroup00/gutsy-test,sda1,w', 'phy:/dev/VolGroup00/
gutsy-test -swap,sda2,w']
root = "/dev/sda1 ro"
-----

But when I start the domU up, it hangs on starting up. Here's the boot
log:
Using config file "./ gutsy-test ".
Started domain gutsy-test
[    0.000000] Linux version 2.6.22-14-xen (buildd@king) (gcc version
4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Tue Feb 12
04:26:15 UTC 2008 (Unofficial)
[    0.000000] Command line:  root=/dev/sda1 ro
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  Xen: 0000000000000000 - 0000000020800000 (usable)
[    0.000000] end_pfn_map = 133120
[254216.349891] Zone PFN ranges:
[254216.349894]   DMA             0 ->   133120
[254216.349897]   DMA32      133120 ->   133120
[254216.349899]   Normal     133120 ->   133120
[254216.349901] early_node_map[1] active PFN ranges
[254216.349903]     0:        0 ->   133120
[254216.359982] No mptable found.
[254216.361337] PERCPU: Allocating 25096 bytes of per cpu data
[254216.361363] Built 1 zonelists.  Total pages: 131300
[254216.361366] Kernel command line:  root=/dev/sda1 ro
[254216.362009] Initializing CPU#0
[254216.362143] PID hash table entries: 4096 (order: 12, 32768 bytes)
[254216.362183] Xen reported: 1994.999 MHz processor.
[254216.362209] Console: colour dummy device 80x25
[254216.362667] Dentry cache hash table entries: 131072 (order: 8,
1048576 bytes)
[254216.363097] Inode-cache hash table entries: 65536 (order: 7, 524288
bytes)
[254216.363222] Software IO TLB disabled
[254216.367366] Memory: 487680k/532480k available (2343k kernel code,
36052k reserved, 1193k data, 208k init)
[254216.367410] SLUB: Genslabs=22, HWalign=64, Order=0-1, MinObjects=4,
CPUs=1, Nodes=1
[254216.434207] Calibrating delay using timer specific routine.. 3991.73
BogoMIPS (lpj=7983477)
[254216.434239] Security Framework v1.0.0 initialized
[254216.434247] SELinux:  Disabled at boot.
[254216.434261] Mount-cache hash table entries: 256
[254216.434373] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64
bytes/line)
[254216.434380] CPU: L2 Cache: 1024K (64 bytes/line)
[254216.434386] CPU: Physical Processor ID: 0
[254216.434390] CPU: Processor Core ID: 0
[254216.434399] SMP alternatives: switching to UP code
[254216.434542] Freeing SMP alternatives: 23k freed
[254216.434667] Early unpacking initramfs... done
[254216.449181] Brought up 1 CPUs
[254216.449777] NET: Registered protocol family 16
[254216.450862] Brought up 1 CPUs
[254216.450879] PCI: Fatal: No config space access function found
[254216.450884] PCI: setting up Xen PCI frontend stub
[254216.451292] ACPI: Interpreter disabled.
[254216.451300] Linux Plug and Play Support v0.97 (c) Adam Belay
[254216.451310] pnp: PnP ACPI: disabled
[254216.451604] xen_mem: Initialising balloon driver.
[254216.452857] Setting mem allocation to 524288 kiB
[254216.452920] PCI: System does not support PCI
[254216.452925] PCI: System does not support PCI
[254216.452947] NET: Registered protocol family 8
[254216.452951] NET: Registered protocol family 20
[254216.453236] NET: Registered protocol family 2
[254216.454426] Time: xen clocksource has been installed.
[254216.486452] IP route cache hash table entries: 32768 (order: 6,
262144 bytes)
[254216.486576] TCP established hash table entries: 131072 (order: 9,
3145728 bytes)
[254216.487969] TCP bind hash table entries: 65536 (order: 8, 1048576
bytes)
[254216.488487] TCP: Hash tables configured (established 131072 bind
65536)
[254216.488495] TCP reno registered
[254216.498527] checking if image is initramfs... it is
[254216.514166] Freeing initrd memory: 20320k freed
[254216.523431] audit: initializing netlink socket (disabled)
[254216.523449] audit(1206547938.077:1): initialized
[254216.524946] VFS: Disk quotas dquot_6.5.1
[254216.524988] Dquot-cache hash table entries: 512 (order 0, 4096
bytes)
[254216.525062] io scheduler noop registered
[254216.525067] io scheduler anticipatory registered
[254216.525070] io scheduler deadline registered
[254216.525144] io scheduler cfq registered (default)
[254216.544937] rtc: IRQ 8 is not free.
[254216.544998] Linux agpgart interface v0.102 (c) Dave Jones
[254216.545409] RAMDISK driver initialized: 16 RAM disks of 65536K size
1024 blocksize
[254216.545556] input: Macintosh mouse button emulation as
/class/input/input0
[254216.545603] xencons_init: Initializing xen vfb; pass xencons=tty to
prevent this
[254216.545677] Xen virtual console successfully installed as xvc0
[254216.545715] Event-channel device installed.
[254216.563066] netfront: Initialising virtual ethernet driver.
[254216.563596] PNP: No PS/2 controller found. Probing ports directly.
[254216.564418] i8042.c: No controller found.
[254216.564497] mice: PS/2 mouse device common for all mice
[254216.564596] TCP cubic registered
[254216.564648] NET: Registered protocol family 1
[254216.565226] xen-vbd: registered block device major 8
[254216.571135] netfront: device eth0 has flipping receive path.
[254216.662471]
/build/buildd/linux-source-2.6.22-2.6.22/debian/build/custom-source-xen/
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[254216.662489] Freeing unused kernel memory: 208k freed
[254216.925032] fuse init (API version 7.8)
[254216.933839] Capability LSM initialized
[254216.966859] thermal: Unknown symbol acpi_processor_set_thermal_limit
[254216.982901] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12)
initialised: dm-devel@xxxxxxxxxx
[254217.789297] kjournald starting.  Commit interval 5 seconds
[254217.789321] EXT3-fs: mounted filesystem with ordered data mode.


Anyone have any ideas on what I missed? I was able to run the 32-bit
Ubuntu from jailtime.org (though it crashed frequently, since it was a
32-bit domU on a 645-bit dom0).

Perhaps a related question, how can I tell what architecture a kernel
and initrd are compiled for? The two I'm using for this domU I think are
for amd64, but I'm not 100% sure.

Thanks for the help,
Donald


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