First try to shrink fs+partition+lvm inside guest vm with gparted as
Lindsay suggested.

Reboot the VM to check if resize completed successfully.
Check actual fs+partition+lvm sizes inside VM and verify their total size.

Shutdown VM and try to resize raw disk so that the total size is bigger at
least some MB than the actual size.

For example if actual size is 1Tb resize it to 1.2-1.3 Tb just to be safe.

Try booting the VM again.
 On 22 Jun 2015 13:37, "Gilberto Nunes" <gilberto.nune...@gmail.com> wrote:

> So, inside the VM I managed to reduce the LVM and the Filesystem...
> But, when I try to use qemu-img resize, perhaps I mistake something,
> because the crash down in kernel panic, 'cause not found and partitions,
> even the LVM!
>
> Are you sure that gparted live iso is safe???
>
> Thanks
>
> 2015-06-22 9:25 GMT-03:00 Lindsay Mathieson <lindsay.mathie...@gmail.com>:
>
>> Use the GPartEd Live ISO (http://gparted.org/download.php) to resize the
>> LVM *and* the partiton, then qemu-img to shrink it.
>>
>>
>>
>> On 22 June 2015 at 21:50, Gilberto Nunes <gilberto.nune...@gmail.com>
>> wrote:
>>
>>> Hi guys
>>>
>>> I was able to reduce LVM and root/home partition inside a certain VM,
>>> runnning on Proxmox.
>>> The VM has raw image.
>>> This image was 4 TB of size..
>>> But, when I try using command:
>>>
>>> qemu-img resize vm.raw -XXXXG
>>>
>>> The VM get crash! No partition remain....
>>>
>>> So I thought use virt-resize to make this operation....
>>> I can use perhaps, other host, with virt-manager and other virt tools
>>> installed, shrink the raw image with virt-resize and get use the resulting
>>> image to new VM on Proxmox...
>>>
>>> Or, maybe you guys, has another solution...??
>>>
>>> Thanks
>>>
>>> --
>>>
>>> Gilberto Ferreira
>>> +55 (47) 9676-7530
>>> Skype: gilberto.nunes36
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing list
>>> pve-user@pve.proxmox.com
>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>>
>>>
>>
>>
>> --
>> Lindsay
>>
>> _______________________________________________
>> pve-user mailing list
>> pve-user@pve.proxmox.com
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>>
>>
>
>
> --
>
> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
>
> _______________________________________________
> pve-user mailing list
> pve-user@pve.proxmox.com
> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>
>
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