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[Xen-users] Running Debian as DomU


  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Holger Wesser" <holger.wesser@xxxxxxxxxxxxxx>
  • Date: Mon, 16 Apr 2007 17:12:34 +0200
  • Delivery-date: Mon, 16 Apr 2007 08:11:25 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hello,

I just gain experiences in using XEN and hope you can help me.

My hostsystem is Centos5 that I installed on a Software-Raid (Level 1).
Afterwards I downloaded the debian-tarball from the jailtime.org website,
extracted/mounted the image and copied the
"/ lib/modules/<kernelversion>"-folder from my host to the guest.

My XEN-Configfile looks like this:

kernel = "/boot/vmlinuz-2.6.18-8.el5xen"
memory = 128
name = "debian.3-1"
vif = [ '' ]
dhcp = "dhcp"
disk = ['file:/xen/debian/debian.3-1.img,sda1,w ',
'file:/xen/debian/debian.swap,sda2,w']
root = "/dev/sda1 ro"

When I try to start the VM, I get the following messages:

Using config file "/etc/xen/debian".
Started domain debian.3-1
Linux version 2.6.18-8.el5xen (mockbuild@xxxxxxxxxxxxxxxxxxx ) (gcc version 4.1.1 20070105 (Red Hat 4.1.1-52)) #1 SMP Thu Mar 15 21:02:53 EDT 2007
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000008800000 (usable)
0MB HIGHMEM available.
136MB LOWMEM available.
Using x86 segment limits to approximate NX protection
ACPI in unprivileged domain disabled
Built 1 zonelists. Total pages: 34816
Kernel command line: ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 ro
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c071b000 soft=c06fb000
PID hash table entries: 1024 (order: 10, 4096 bytes)
Xen reported: 2992.496 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Software IO TLB disabled
vmalloc area: c9000000-f4ffe000, maxmem 2d7fe000
Memory: 125380k/139264k available (2017k kernel code, 5536k reserved,
824k data, 172k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 7486.71 BogoMIPS
(lpj=14973435)
Security Framework v1.0.0 initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 16k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C06CAAA0 could
not acquire Mutex [2] [20060707]
Brought up 1 CPUs
PCI: setting up Xen PCI frontend stub
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: System does not support PCI
PCI: System does not support PCI
NetLabel: Initializing
NetLabel: domain hash size = 128
NetLabel: protocols = UNLABELED CIPSOv4
NetLabel: unlabeled traffic allowed by default
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 4096)
TCP reno registered
IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
audit: initializing netlink socket (disabled)
audit(1176724934.339:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux: Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key EE79A493AEE5EDC9
- User ID: CentOS (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
Linux agpgart interface v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Linux version 2.6.18-8.el5xen ( mockbuild@xxxxxxxxxxxxxxxxxxx) (gcc
version 4.1.1 20070105 (Red Hat 4.1.1-52)) #1 SMP Thu Mar 15 21:02:53
EDT 2007
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000008800000 (usable)
0MB HIGHMEM available.
136MB LOWMEM available.
Using x86 segment limits to approximate NX protection
ACPI in unprivileged domain disabled
Built 1 zonelists. Total pages: 34816
Kernel command line: ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 ro
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c071b000 soft=c06fb000
PID hash table entries: 1024 (order: 10, 4096 bytes)
Xen reported: 2992.496 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Software IO TLB disabled
vmalloc area: c9000000-f4ffe000, maxmem 2d7fe000
Memory: 125380k/139264k available (2017k kernel code, 5536k reserved,
824k data, 172k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 7486.71 BogoMIPS
(lpj=14973435)
Security Framework v1.0.0 initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 16k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C06CAAA0 could
not acquire Mutex [2] [20060707]
Brought up 1 CPUs
PCI: setting up Xen PCI frontend stub
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: System does not support PCI
PCI: System does not support PCI
NetLabel: Initializing
NetLabel: domain hash size = 128
NetLabel: protocols = UNLABELED CIPSOv4
NetLabel: unlabeled traffic allowed by default
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 4096)
TCP reno registered
IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
audit: initializing netlink socket (disabled)
audit(1176724934.339:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux: Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key EE79A493AEE5EDC9
- User ID: CentOS (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
Linux agpgart interface v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Event-channel device installed.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
ide-floppy driver 0.99.newide
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid- core.c: v2.6:USB HID core driver
PNP: No PS/2 controller found. Probing ports directly.
i8042.c: No controller found.
mice: PS/2 mouse device common for all mice
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
XENBUS: Device with no driver: device/vbd/2049
XENBUS: Device with no driver: device/vbd/2050
XENBUS: Device with no driver: device/vif/0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)

It looks like it can't mount the root-filesystem and I don't know, what
I have done wrong.

Can you give me a hint?

Thanks a lot!

Regards,
Holger

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