Re: [Xen-users] Still having trouble creating a VM using xm crea

Right. But what is the logic behind these lines? How is it supposed to be?

These are my vols/devices:

[root@localhost xen]# df -l
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      16822672   7280864   8673456 46% /
/dev/hda1               101086     20680     75187 22% /boot
/dev/shm                480296         0    480296   0% /dev/shm
/dev/hdc                 63736     63736         0 100% /media/cdrom

[root@localhost xen]# lvdisplay -v | grep "LV Name"
    Finding all logical volumes
LV Name                /dev/VolGroup00/LogVol00
LV Name                /dev/VolGroup00/LogVol01

Thanks

Shabs

list user <xktnniuymlla@xxxxxxxxxxxxxx> wrote:

Shabs wrote:
> Hi all.
>
> Could anyone assist in this issue?
>
> I've just built Fedora and installed Xen and booted fromits kernel.
> I have the priviledged domain:
>
> [root@localhost xen]# xm list
> Name ID Mem(MiB) VCPUs State Time(s)
> Domain-0 0 884 1 r----- 267.8
>
> When I run xm create, I get a new VM but it doesn't seem to hang around
> for long. I know its something to do with my "disk" entry in the config
> file "sr-config1"
>
> disk = [ 'phy:/dev/mapper/VolGroup00-LogVol01,hda1,w',
> 'phy:/dev/mapper/VolGroup00-LogVol01,hda2,r' ]

In the line above you have the same logical volume mounted in two places
at the same time. That could be your error.

hth

>
> [root@localhost xen]# df -k
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/mapper/VolGroup00-LogVol00
> 16822672 7279916 8674404 46% /
> /dev/hda1 101086 20680 75187 22% /boot
> /dev/shm 480296 0 480296 0% /dev/shm
> /dev/hdc 63736 63736 0 100% /media/cdrom
>
> [root@localhost xen]# ls -l /dev/mapper/VolGroup00-LogVol0*
> brw-rw---- 1 root disk 254, 0 Apr 27 12:58 /dev/mapper/VolGroup00-LogVol00
> brw-rw---- 1 root disk 254, 1 Apr 27 13:57 /dev/mapper/VolGroup00-LogVol01
>
>
> The output of the xm create command is as follows:
>
> [root@localhost xen]# xm create sr-config1 -c vmid=1
> Using config file "sr-config1".
> Started domain VM1
> Linux version 2.6.16-xen3_86.1_fc4 (rread@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx)
> (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Thu Apr 13
> 08:26:52 PDT 2006
> BIOS-provided physical RAM map:
> Xen: 0000000000000000 - 0000000004000000 (usable)
> 0MB HIGHMEM available.
> 72MB LOWMEM available.
> ACPI in unprivileged domain disabled
> IRQ lockup detection disabled
> Built 1 zonelists
> Kernel command line: ip=:1.2.3.4:::vm1:eth0:dhcp
> root=/dev/mapper/VolGroup00-LogVol00 ro 4 VMID=1 usr=/dev/hda1
> Enabling fast FPU save and restore... done.
> Enabling unmasked SIMD FPU exception support... done.
> Initializing CPU#0
> PID hash table entries: 512 (order: 9, 8192 bytes)
> Xen reported: 2391.132 MHz processor.
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Software IO TLB disabled
> vmalloc area: c5000000-fb7fe000, maxmem 33ffe000
> Memory: 61016k/73728k available (2188k kernel code, 4452k reserved, 681k
> data, 168k init, 0k highmem)
> Checking if this processor honours the WP bit even in supervisor mode... Ok.
> Calibrating delay using timer specific routine.. 4785.76 BogoMIPS
> (lpj=23928814)
> Security Framework v1.0.0 initialized
> Capability LSM initialized
> Mount-cache hash table entries: 512
> CPU: Trace cache: 12K uops, L1 D cache: 8K
> CPU: L2 cache: 512K
> Checking 'hlt' instruction... OK.
> Brought up 1 CPUs
> migration_cost=0
> Grant table initialized
> NET: Registered protocol family 16
> Brought up 1 CPUs
> PCI: setting up Xen PCI frontend stub
> ACPI: Subsystem revision 20060127
> ACPI: Interpreter disabled.
> Linux Plug and Play Support v0.97 (c) Adam Belay
> 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
> IA-32 Microcode Update Driver: v1.14-xen
> VFS: Disk quotas dquot_6.5.1
> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> Initializing Cryptographic API
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> PNP: No PS/2 controller found. Probing ports directly.
> i8042.c: No controller found.
> RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> Xen virtual console successfully installed as tty1
> Event-channel device installed.
> blkif_init: reqs=64, pages=704, mmap_vstart=0xc3c00000
> netfront: Initialising virtual ethernet driver.
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
> Registering block device major 3
> ide-floppy driver 0.99.newide
> usbmon: debugfs is not available
> usbcore: registered new driver libusual
> mice: PS/2 mouse device common for all mice
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> Initializing IPsec netlink socket
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> NET: Registered protocol family 8
> NET: Registered protocol family 20
> Using IPI No-Shortcut mode
> VFS: Cannot open root device "mapper/VolGroup00-LogVol00" 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)
> [root@localhost xen]# x, list
> bash: x,: command not found
>
> [root@localhost xen]# xm list
> Name ID Mem(MiB) VCPUs State Time(s)
> Domain-0 0 883 1 r----- 282.1
> VM1 9 64 1 ------ 0.2
>
> Running the same command after 10 secs:
>
> [root@localhost xen]# xm list
> Name ID Mem(MiB) VCPUs State Time(s)
> Domain-0 0 883 1 r----- 292.6
>
> Thanks.
>
> Shabs
>
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Re: [Xen-users] Still having trouble creating a VM using xm create