[Users] ovirt VM start fails - Perm Denied error

[Dan Kenigsberg]

On Sun, Feb 12, 2012 at 11:58:05PM +0530, Deepak C Shetty wrote:
> Hi,
>    I have tried this multiple times and i hit the same error.
> 
> I have 3 storage domains  created (iso, data and export) all
> connected to the DC with DC status as Up and
> 1 host with status as Up and the same (only) host acting as SPM.
> 
> I used the engine-iso-uploader utility to upload my .iso to the iso domain.
> Created a new VM and attached a vdisk of type sparse (thin-prov) and
> click on "Run Once",
> where i select "Attach CD" and select my .iso, and change boot order
> to boot from CD, then disk.
> 
> But i get this error...
> 
> VM first-ovirt-vm is down. Exit message internal error process
> exited while connecting to monitor: qemu-kvm: -drive file=/rhev/data-center/4087fea7-b54a-4318-8d5c-828eff8846f4/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw:
> could not open disk image /rhev/data-center/4087fea7-b54a-4318-8d5c-828eff8846f4/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso:
> Permission denied .
> 
> I am unable to figure out why.. bcos the user.group perms for the
> .iso are fine.
> In fact i logged into the system serving the nfs share and added 0777 perms
> still i get the same error. Here is the snip of how the perms for
> .iso look like...
> 
> ll /tmp/iso1-domain/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso
> -rwxr-xr-x. 1 vdsm kvm 3757047808 Feb 13 04:24 /tmp/iso1-domain/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso

would you try `ls -lZ` ? Does your /var/log/audit/audit.log shows an
selinux problem? What's `getenforce`? And `getsebool virt_use_nfs`?

What is `groups qemu`?
Does
   su - qemu -s /bin/bash -c 'strings your.iso'
work for you?

Regards,
Dan.