[Libguestfs] libguestfs question

Lonnie Cumberland
2022-03-10T11:33:25Z

I just found the mailing list and have subscribed.

Best Regards,

Lonnie
Email: Lonnie.Cumberland at Outstep.com


On Thu, Mar 10, 2022 at 6:26 AM Lonnie Cumberland <lonnie at outstep.com>
wrote:

> Hi Richard,
>
> Thanks for getting back to me so quickly on this question and I was afraid
> that this was the case.
>
> I will probably definitely still use libguestfs as it does some things
> that I really need as well if I can get it to compile without errors on my
> Ubuntu 20.04 system.  Currently seems to be having some problems during the
> "make" process when it gets partially through the Erlang section
but I am
> investigating now.
>
> Is there, by chance, a mailing list or forum available as I would like to
> report the errors and get some input on possible fixes?
>
> Best Regards,
>
> Lonnie
> Email: Lonnie.Cumberland at Outstep.com
>
>
> On Thu, Mar 10, 2022 at 3:33 AM Richard W.M. Jones <rjones at
redhat.com>
> wrote:
>
>> On Wed, Mar 09, 2022 at 08:24:27PM -0500, Lonnie Cumberland wrote:
>> [...]
>> > The second part of this is that once the application creates the
>> > virtual disk and adds the database files, I want to keep the
handle
>> > open to those files so that as they are used in the application
then
>> > the database files (which are in the virtual disk) will grow as
data
>> > is added so that when the application closes then all that remains
>> > to do is to close the virtual disk.
>>
>> No, disk images don't work in this way.  You will simply get data
>> corruption if you try to do this.
>>
>> If you want to share files between the host and the guest then you
>> could try using a network filesystem like NFS; or virtiofsd:
>>
>> https://qemu.readthedocs.io/en/latest/tools/virtiofsd.html
>>
>> Ric.
>>
>> --
>> Richard Jones, Virtualization Group, Red Hat
>> http://people.redhat.com/~rjones
>> Read my programming and virtualization blog: http://rwmj.wordpress.com
>> virt-builder quickly builds VMs from scratch
>> http://libguestfs.org/virt-builder.1.html
>>
>>
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