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Date: Fri, 11 Jul 2014 12:22:46 -0700
From: Kirk Kosinski <kirkkosinski@gmail.com>
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To: users@cloudstack.apache.org
Subject: Re: how to create guest with /dev/vda ROOT volume?
References: <CFE57385.1A008%yzhang@marketo.com>
In-Reply-To: <CFE57385.1A008%yzhang@marketo.com>
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Hi, this is controlled by the OS Type.  The OS Type you are using may
not enable virtio disks.  You can try the  "Other PV" OS Type to get
virtio disks.  This is what a VM with that OS Type looks like in my 4.3
setup:

[root@kvm-fedora ~]# lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE
[Natoma/Triton II]
00:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB
[Natoma/Triton II] (rev 01)
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
00:04.0 SCSI storage controller: Red Hat, Inc Virtio block device
00:05.0 RAM memory: Red Hat, Inc Virtio memory balloon
[root@kvm-fedora ~]# df -hT
Filesystem     Type      Size  Used Avail Use% Mounted on
/dev/vda2      ext4       18G  820M   17G   5% /
devtmpfs       devtmpfs  236M     0  236M   0% /dev
tmpfs          tmpfs     246M     0  246M   0% /dev/shm
tmpfs          tmpfs     246M  244K  246M   1% /run
tmpfs          tmpfs     246M     0  246M   0% /sys/fs/cgroup
tmpfs          tmpfs     246M  4.0K  246M   1% /tmp
/dev/vda1      ext4      477M   71M  377M  16% /boot

Best regards,
Kirk

On 07/11/2014 10:57 AM, Yiping Zhang wrote:
> Hi, All:
>
> My CloudStack environment is 4.3.0 running on rhel 6.5 and kvm hypervisor also running rhel 6.5.
>
> When I create my  first VM from an imported rhel 6.5 ISO image,  the root volume is identified as /dev/sda.  Is there a way to force the root volume to be identified as  /dev/vda device ? How do you create guest VM with /dev/vda root volume?
>
> Thanks
>
> Yiping
>