[PVE-User] Shrink qemu raw image...
Eneko Lacunza
elacunza at binovo.es
Mon Jun 22 15:27:16 CEST 2015
Sorry, it must have GPT table so try:
sgdisk -p <your disk path>
Also:
vgs
El 22/06/15 a las 15:18, Gilberto Nunes escribió:
> >> 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
> <mailto: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
>> <mailto: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
>> <mailto: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
>> <mailto: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
>> <mailto: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 <tel:%2B55%20%2847%29%209676-7530>
>> Skype: gilberto.nunes36
>>
>>
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>>
>>
>>
>> --
>> Lindsay
>>
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>>
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>> --
>>
>> Gilberto Ferreira
>> +55 (47) 9676-7530 <tel:%2B55%20%2847%29%209676-7530>
>> Skype: gilberto.nunes36
>>
>>
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>>
>>
>>
>> --
>>
>> Gilberto Ferreira
>> +55 (47) 9676-7530 <tel:%2B55%20%2847%29%209676-7530>
>> Skype: gilberto.nunes36
>>
>>
>>
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>
>
> --
> Zuzendari Teknikoa / Director Técnico
> Binovo IT Human Project, S.L.
> Telf. 943575997
> 943493611
> Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa)
> www.binovo.es <http://www.binovo.es>
>
>
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>
>
>
> --
>
> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
--
Zuzendari Teknikoa / Director Técnico
Binovo IT Human Project, S.L.
Telf. 943575997
943493611
Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa)
www.binovo.es
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