[virt-tools-list] Best way to backup my VMs

[Bruno Lamps]

Hi,

Today I finally could activate the logs, so I tried again to save a running
guest. When I type "virsh save balance /var/lib/libvirt/images/lol.img", the
following output is written in the balance VM log file
(/var/log/libvirt/qemu/balance.log):

sh: cannot create /var/lib/libvirt/images/lol.img: Permission denied

I tried chmod 777 in target folder, but it made no difference. What
user/group/permissions should I use in target directory, where the state
file will be saved?

Thanks in advance. ;]

-----
Att,
Bruno Menezes

On Wed, Apr 13, 2011 at 9:00 AM, Bruno Lamps <lampss at gmail.com> wrote:

> Hi,
>
> Yesterday, I've run this command with cron, so I wasn't able to see if
> virsh save worked OK. Now I tried it in the terminal and virsh save isn't
> working, I think the problem happens before virsh restore. =D
>
> I typed virsh save balance /backup/b.20110313, and the terminal is locked
> for 20 minutes now, nothing happened. Where can I see some log of what is
> happening? I've pasted here what I did today in terminal:
>
>
>
>
> lamps at ubunteira:~$ virsh
> Bem vindo ao virsh, terminal interativo de virtualização.
>
> Digite:  "help" para ajuda com comandos
>        "quit" para sair
>
>
> virsh # list --all
>  Id Nome                 Estado
> ----------------------------------
>   - balance              desligado
>
>   - bfw-t1               desligado
>   - bunta11              desligado
>   - firebunta-t3         desligado
>   - zeus                 desligado
>
> virsh # start balance
> Domínio balance iniciado
>
> virsh # list all
> erro: dado "all" inesperado
>
> virsh # list --all
>  Id Nome                 Estado
> ----------------------------------
>   1 balance              executando
>
>   - bfw-t1               desligado
>   - bunta11              desligado
>   - firebunta-t3         desligado
>   - zeus                 desligado
>
> virsh # save balance /backup/b.20110413
>
>
>
>
>
> On Tue, Apr 12, 2011 at 6:18 PM, Eric Blake <eblake at redhat.com> wrote:
>
>> On 04/12/2011 03:01 PM, Bruno Lamps wrote:
>> > Hi,
>> >
>> > I tested the virsh save / copy / virsh restore scheme, but my VM wasn't
>> able
>> > to restore. =~
>> > I tried 2 diferent syntaxes, but with these commands my VM keeps paused.
>> The
>> > following output is printed in the terminal:
>> >
>> > lamps at ubunteira:~$ virsh restore balance
>> > erro: Falha ao restaurar o domínio a partir de balance
>> > erro: operation failed: cannot read domain image
>>
>> Did you name the file "balance" in the 'virsh save domain file' step?
>> 'virsh restore' expects that file name, not a domain name.
>>
>> > lamps at ubunteira:~$ sudo virsh restore /backup/balance.memo
>> > [sudo] password for lamps:
>> > erro: Falha ao restaurar o domínio a partir de /backup/balance.memo
>> > erro: Requested operation is not valid: domain is already active as
>> > 'balance'
>>
>> 'virsh restore' restarts the domain; therefore, if you have
>> independently restarted the domain in the meantime, then virsh restore
>> can't do it's job.
>>
>> Furthermore, 'virsh save domain file' should not leave the domain
>> paused, but should actually change it over to 'shut down'.  It may help
>> if you paste your entire session of what you tried, rather than just the
>> tail end of it.
>>
>> --
>> Eric Blake   eblake at redhat.com    +1-801-349-2682
>> Libvirt virtualization library http://libvirt.org
>>
>>
>
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