[PVE-User] Shrink qemu raw image...

[Gilberto Nunes]

>> What about:
>>
>> vgs
>> sfdisk -l <your disk path>

This result in a empty partition table...
It sounds like I lost all partitions inside the guest

2015-06-22 10:14 GMT-03:00 Eneko Lacunza <elacunza at binovo.es>:

>
> What about:
>
> vgs
> sfdisk -l <your disk path>
>
> El 22/06/15 a las 15:05, Gilberto Nunes escribió:
>
>   Ok guys...
>
>  All those steps I already perform...
>  I can shrink fs+partition+lvm inside the guest... Everything is ok!
>  But, when I perform this:
>
>  qemu-img resize vm.raw -3100G
>
>  the guest crash!
>
>  The raw image, on Proxmox fs has 3,9 TB...
>  Inside the guest, I have this:
>
> df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/vg_bancosiscobra-lv_root
>                        50G  4,7G   43G  11% /
> tmpfs                 939M     0  939M   0% /dev/shm
> /dev/sda2             485M   67M  393M  15% /boot
> /dev/mapper/vg_bancosiscobra-lv_home
>                       640G  540G   68G  89% /home
>
>  With the qemu-img resize command showing above, I managed to shrink raw
> image to 800GB, more than sufficient to boot the machine...
>  But no way! I get error inside the guest...
>
>  My next shot will be this tutorial:
>
> http://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-easy-way/
>
> 2015-06-22 9:57 GMT-03:00 Yannis Milios <yannis.milios at gmail.com>:
>
>> 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.nunes32 at 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.mathieson at 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.nunes32 at 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 <%2B55%20%2847%29%209676-7530>
>>>>> Skype: gilberto.nunes36
>>>>>
>>>>>
>>>>>  _______________________________________________
>>>>> pve-user mailing list
>>>>> pve-user at pve.proxmox.com
>>>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Lindsay
>>>>
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>>>>
>>>>
>>>
>>>
>>> --
>>>
>>>  Gilberto Ferreira
>>> +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>>> Skype: gilberto.nunes36
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing list
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>>>
>>>
>
>
> --
>
>  Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
>
>
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>
>
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-- 

Gilberto Ferreira
+55 (47) 9676-7530
Skype: gilberto.nunes36
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