NFS mounted disk images

NFS mounted disk images

[Magicboiz]

Hello list,

when I try to run a virtual machins with disk images stored into NFS
mounted directories, the virtual machine cannot use the IDE disk as
expected. This happens with linux(debian/centos) and other OS, like
OpenBSD, OpenSolaris(nexenta), etc. For example, during installation of
guest oses, they cannot partition the disk.

This is how I run KVM:

sudo /usr/local/bin/qemu-system-x86_64 -m 256 -boot d
-cdrom /mnt/debian-40r1-i386-netinst.iso -hda /mnt/disco.img -net nic
-net tap,ifname=tap0,script=qemu-ifup 


And this is my NFS mounted partition:

10.172.224.3:/export on /mnt type nfs
(rw,tcp,rsize=8192,wsize=8192,addr=10.172.224.3)


kernel: 2.6.22 /Ubuntu Gutsy  2.6.22-10-generic
KVM 36


Do you know what's happening?? Pherhaps i'm doing something wrong....??

Regards.




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Re: NFS mounted disk images

[Gilad Ben-Yossef]

Magicboiz wrote:
> Hello list,
> 
> when I try to run a virtual machins with disk images stored into NFS
> mounted directories, the virtual machine cannot use the IDE disk as
> expected. This happens with linux(debian/centos) and other OS, like
> OpenBSD, OpenSolaris(nexenta), etc. For example, during installation of
> guest oses, they cannot partition the disk.
> 
> This is how I run KVM:
> 
> sudo /usr/local/bin/qemu-system-x86_64 -m 256 -boot d
> -cdrom /mnt/debian-40r1-i386-netinst.iso -hda /mnt/disco.img -net nic
> -net tap,ifname=tap0,script=qemu-ifup 
> 
> 
> And this is my NFS mounted partition:
> 
> 10.172.224.3:/export on /mnt type nfs
> (rw,tcp,rsize=8192,wsize=8192,addr=10.172.224.3)

Just guessing here, but you probably need to add "no_root_squash" to the 
options above.

Please note that no_root_squash can be considered a security risk under 
most circumstances.


Gilad

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Re: NFS mounted disk images

[Magic Boiz]

[-- Attachment #1.1: Type: text/plain, Size: 1087 bytes --]

no_root_squash is enabled  in the nfs server.
:((

thx


On 8/30/07, Gilad Ben-Yossef <gilad-f4XOiQkOAtcdH0auuBZGHA@public.gmane.org> wrote:
>
> Magicboiz wrote:
> > Hello list,
> >
> > when I try to run a virtual machins with disk images stored into NFS
> > mounted directories, the virtual machine cannot use the IDE disk as
> > expected. This happens with linux(debian/centos) and other OS, like
> > OpenBSD, OpenSolaris(nexenta), etc. For example, during installation of
> > guest oses, they cannot partition the disk.
> >
> > This is how I run KVM:
> >
> > sudo /usr/local/bin/qemu-system-x86_64 -m 256 -boot d
> > -cdrom /mnt/debian-40r1-i386-netinst.iso -hda /mnt/disco.img -net nic
> > -net tap,ifname=tap0,script=qemu-ifup
> >
> >
> > And this is my NFS mounted partition:
> >
> > 10.172.224.3:/export on /mnt type nfs
> > (rw,tcp,rsize=8192,wsize=8192,addr=10.172.224.3)
>
> Just guessing here, but you probably need to add "no_root_squash" to the
> options above.
>
> Please note that no_root_squash can be considered a security risk under
> most circumstances.
>
>
> Gilad
>

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[-- Attachment #3: Type: text/plain, Size: 186 bytes --]

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Re: NFS mounted disk images

[Avi Kivity]

Magic Boiz wrote:
> no_root_squash is enabled  in the nfs server.

do you actually have write access?

> :((
>  
> thx
>
>  
> On 8/30/07, *Gilad Ben-Yossef* <gilad-f4XOiQkOAtcdH0auuBZGHA@public.gmane.org 
> <mailto:gilad-f4XOiQkOAtcdH0auuBZGHA@public.gmane.org>> wrote:
>
>     Magicboiz wrote:
>     > Hello list,
>     >
>     > when I try to run a virtual machins with disk images stored into
>     NFS
>     > mounted directories, the virtual machine cannot use the IDE disk as
>     > expected. This happens with linux(debian/centos) and other OS, like
>     > OpenBSD, OpenSolaris(nexenta), etc. For example, during
>     installation of
>     > guest oses, they cannot partition the disk.
>     >
>     > This is how I run KVM:
>     >
>     > sudo /usr/local/bin/qemu-system-x86_64 -m 256 -boot d
>     > -cdrom /mnt/debian-40r1-i386-netinst.iso -hda /mnt/disco.img
>     -net nic
>     > -net tap,ifname=tap0,script=qemu-ifup
>     >
>     >
>     > And this is my NFS mounted partition:
>     >
>     > 10.172.224.3:/export on /mnt type nfs
>     > (rw,tcp,rsize=8192,wsize=8192,addr= 10.172.224.3
>     <http://10.172.224.3>)
>
>     Just guessing here, but you probably need to add "no_root_squash"
>     to the
>     options above.
>
>     Please note that no_root_squash can be considered a security risk
>     under
>     most circumstances.
>
>
>     Gilad
>
>
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>
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>   


-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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Re: NFS mounted disk images

[Magicboiz]

yes, I do.......

in fact, a windows xp sp2 guest, can boot, install and run perfectly.




El sáb, 01-09-2007 a las 17:26 +0300, Avi Kivity escribió:
> Magic Boiz wrote:
> > no_root_squash is enabled  in the nfs server.
> 
> do you actually have write access?
> 
> > :((
> >  
> > thx
> >
> >  
> > On 8/30/07, *Gilad Ben-Yossef* <gilad-f4XOiQkOAtcdH0auuBZGHA@public.gmane.org 
> > <mailto:gilad-f4XOiQkOAtcdH0auuBZGHA@public.gmane.org>> wrote:
> >
> >     Magicboiz wrote:
> >     > Hello list,
> >     >
> >     > when I try to run a virtual machins with disk images stored into
> >     NFS
> >     > mounted directories, the virtual machine cannot use the IDE disk as
> >     > expected. This happens with linux(debian/centos) and other OS, like
> >     > OpenBSD, OpenSolaris(nexenta), etc. For example, during
> >     installation of
> >     > guest oses, they cannot partition the disk.
> >     >
> >     > This is how I run KVM:
> >     >
> >     > sudo /usr/local/bin/qemu-system-x86_64 -m 256 -boot d
> >     > -cdrom /mnt/debian-40r1-i386-netinst.iso -hda /mnt/disco.img
> >     -net nic
> >     > -net tap,ifname=tap0,script=qemu-ifup
> >     >
> >     >
> >     > And this is my NFS mounted partition:
> >     >
> >     > 10.172.224.3:/export on /mnt type nfs
> >     > (rw,tcp,rsize=8192,wsize=8192,addr= 10.172.224.3
> >     <http://10.172.224.3>)
> >
> >     Just guessing here, but you probably need to add "no_root_squash"
> >     to the
> >     options above.
> >
> >     Please note that no_root_squash can be considered a security risk
> >     under
> >     most circumstances.
> >
> >
> >     Gilad
> >
> >
> > ------------------------------------------------------------------------
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by: Splunk Inc.
> > Still grepping through log files to find problems?  Stop.
> > Now Search log events and configuration files using AJAX and a browser.
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> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > kvm-devel mailing list
> > kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> > https://lists.sourceforge.net/lists/listinfo/kvm-devel
> >   
> 
> 


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