4:40 p.m.
On Mon, Feb 13, 2012 at 08:57:23AM -0500, Keith Robertson wrote:
On 02/13/2012 08:33 AM, Deepak C Shetty wrote:
>On 02/13/2012 03:16 PM, Dan Kenigsberg wrote:
>>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.
>>
>>
>
>Hello Dan,
> Here is the output you requested...
>
>[root@llm56 ~]# ls -lZ
/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
>-rwxr-xr-x. vdsm kvm system_u:object_r:nfs_t:s0
/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
>
>[root@llm56 ~]# getenforce
>Enforcing
>
>[root@llm56 ~]# getsebool virt_use_nfs
>virt_use_nfs --> off
Vdsm SHOULD configure this to "on" when it first starts, by running
/usr/sbin/semanage boolean -m -S targeted -F /dev/stdin << _EOF
virt_use_nfs=1
_EOF
/usr/sbin/setsebool virt_use_nfs on
Please try running this as root to understand why it failed. qemu cannot
use NFS when this is off and selinux is enforcing.
>
>[root@llm56 ~]# groups qemu
>qemu : qemu kvm
>
>Also `su - qemu -s /bin/bash -c 'strings your.iso'`
>
>worked for me.. dumped loads of strings on the screen.
>
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Perhaps I missed that snippet of logs, but is llm56 the hyper-visor?
Also, here is another litmus test to help shake out some common NFS
issues. Do the following from the hyper-visor:
1. temporarily give user vdsm in /etc/passwd a login shell (e.g. /bin/bash)
2. mkdir /mnt/testmount
3. mount <nfs server here>:/path/to/iso/storage/domain /mnt/testmount
4. su - vdsm <-- Really important.
unrelated comment:
if you add '-s /bin/bash' you can avoid steps 1 and 8.
5. cd
35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111
6. touch test.txt
7. strings Fedora-16-x86_64-DVD.iso
8. reset vdsm in /etc/passwd to nologin
Do 6 and 7 work?
Cheers,
Keith