[one-users] Unable to see on the fly disk in KVM VMs

Ruben S. Montero rsmontero at opennebula.org
Sun Aug 26 11:59:55 PDT 2012


Hi

It is normal not to see a partition table, note that the disk is made of a
raw file, and then is given ext3 format. The devices are shown in your VM,
so just mount them

mount -t ext3 /dev/vdc /mnt

Cheers

Ruben

On Sun, Aug 26, 2012 at 11:12 AM, Duverne, Cyrille <
cyrille.duverne at euranova.eu> wrote:

>
> Hello,
>
> Did anyone get the time to look at this ?
>
> Thanks in advance.
> CyD
>
>
>
> Vendredi 24/08/2012 à 14:24 Duverne, Cyrille a écrit:
>
> Hello,
>
> I'm having quite an issue when creating VMs with an attached datablock :
>
> I'm running OpenNebula 3.4 with KVM + Sunstone.
>
> Here below my VM template :
>
> CONTEXT=[
>   FILES=/nebuladata/scripts/init.sh,
>   HOSTNAME=\"VM-\"$VMID,
>   IP_PUBLIC="$NIC[IP, NETWORK=\"Big Network\"]",
>   TARGET=vdb ]
> CPU=0.2
> DISK=[
>   IMAGE=UbuntuContext,
>   TARGET=vda ]
> DISK=[
>   FORMAT=ext3,
>   SIZE=40000,
>   TARGET=vde,
>   TYPE=fs ]
> FEATURES=[
>   ACPI=yes ]
> GRAPHICS=[
>   TYPE=VNC ]
> MEMORY=512
> NAME=ubuntu
> NIC=[
>   NETWORK="Big Network" ]
> OS=[
>   ARCH=x86_64,
>   BOOT=hd ]
> TEMPLATE_ID=20
>
> Here below what happens in ONE when creating the VM :
>
> Fri Aug 24 14:07:05 2012 [DiM][I]: New VM state is ACTIVE.
> Fri Aug 24 14:07:05 2012 [LCM][I]: New VM state is PROLOG.
> Fri Aug 24 14:07:39 2012 [TM][D]: tm_clone.sh: inferno:/var/lib/one/images/b1240e874bec231c993568433c5a314a orthanc.local:/var/lib/one//121/images/disk.0
> Fri Aug 24 14:07:39 2012 [TM][D]: tm_clone.sh: DST: /var/lib/one//121/images/disk.0
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Creating directory /var/lib/one//121/images
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Executed "mkdir -p /var/lib/one//121/images".
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Executed "chmod a+w /var/lib/one//121/images".
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Cloning /var/lib/one/images/b1240e874bec231c993568433c5a314a
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Executed "cp -r /var/lib/one/images/b1240e874bec231c993568433c5a314a /var/lib/one//121/images/disk.0".
> Fri Aug 24 14:07:39 2012 [TM][I]: tm_clone.sh: Executed "chmod a+rw /var/lib/one//121/images/disk.0".
> Fri Aug 24 14:07:39 2012 [TM][I]: ExitCode: 0
> Fri Aug 24 14:07:57 2012 [TM][I]: tm_mkimage.sh: Executed "mkdir -p /var/lib/one//121/images".
> Fri Aug 24 14:07:57 2012 [TM][I]: tm_mkimage.sh: Executed "dd if=/dev/zero of=/var/lib/one//121/images/disk.1 bs=1 count=1 seek=40000M".
> Fri Aug 24 14:07:57 2012 [TM][I]: tm_mkimage.sh: Executed "mkfs -t ext3 -F /var/lib/one//121/images/disk.1".
> Fri Aug 24 14:07:57 2012 [TM][I]: tm_mkimage.sh: Executed "chmod a+rw /var/lib/one//121/images/disk.1".
> Fri Aug 24 14:07:57 2012 [TM][I]: ExitCode: 0
> Fri Aug 24 14:07:58 2012 [TM][I]: tm_context.sh: Executed "mkdir -p /var/lib/one//121/images/isofiles".
> Fri Aug 24 14:07:58 2012 [TM][I]: tm_context.sh: Executed "cp -R /var/lib/one/121/context.sh /var/lib/one//121/images/isofiles".
> Fri Aug 24 14:07:58 2012 [TM][I]: tm_context.sh: Executed "cp -R /nebuladata/scripts/init.sh /var/lib/one//121/images/isofiles".
> Fri Aug 24 14:07:58 2012 [TM][I]: tm_context.sh: Executed "genisoimage -o /var/lib/one//121/images/disk.2 -J -R /var/lib/one//121/images/isofiles".
> Fri Aug 24 14:07:58 2012 [TM][I]: tm_context.sh: Executed "rm -rf /var/lib/one//121/images/isofiles".
> Fri Aug 24 14:07:58 2012 [TM][I]: ExitCode: 0
> Fri Aug 24 14:07:58 2012 [LCM][I]: New VM state is BOOT
> Fri Aug 24 14:07:58 2012 [VMM][I]: Generating deployment file: /var/lib/one/121/deployment.0
> Fri Aug 24 14:07:58 2012 [VMM][I]: ExitCode: 0
> Fri Aug 24 14:07:58 2012 [VMM][I]: Successfully execute network driver operation: pre.
> Fri Aug 24 14:08:00 2012 [VMM][I]: ExitCode: 0
> Fri Aug 24 14:08:00 2012 [VMM][I]: Successfully execute virtualization driver operation: deploy.
> Fri Aug 24 14:08:00 2012 [VMM][I]: ExitCode: 0
> Fri Aug 24 14:08:00 2012 [VMM][I]: Successfully execute network driver operation: post.
> Fri Aug 24 14:08:01 2012 [LCM][I]: New VM state is RUNNING
>
> Here below a df -h result in the VM :
>
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/ENX-root  2.3G  914M  1.3G  42% /
> udev                  237M  4.0K  237M   1% /dev
>
> tmpfs                  99M  232K   99M   1% /run
> none                  5.0M     0  5.0M   0% /run/lock
> none                  246M     0  246M   0% /run/shm
> /dev/vda1             228M   25M  192M  12% /boot
>
>
> The result of a sudo fdisk -l :
>
> Disk /dev/vdb: 0 MB, 374784 bytes
> 16 heads, 63 sectors/track, 0 cylinders, total 732 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
>
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>
> Disk /dev/vdb doesn't contain a valid partition table
>
> Disk /dev/vdc: 41.9 GB, 41943040000 bytes
> 16 heads, 63 sectors/track, 81269 cylinders, total 81920000 sectors
>
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>
> Disk /dev/vdc doesn't contain a valid partition table
>
> Disk /dev/mapper/ENX-root: 2424 MB, 2424307712 bytes
> 255 heads, 63 sectors/track, 294 cylinders, total 4734976 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
>
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>
> -----------
>
> I tried to use it in a non-LVM VM, which was the same.
> Tried to use hd or sd instead of vd and nothing worked...
>
> Please help, this is driving me crazy...
>
> Thanks in advance
> CyD
>
>
>
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>
>


-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - The Open Source Solution for Data Center Virtualization
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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