:: Re: [DNG] Testing vdev with Busybox
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Autor: aitor_czr
Data:  
Para: Didier Kryn
CC: dng
Tópicos Novos: Re: [DNG] Packaging Vdev
Assunto: Re: [DNG] Testing vdev with Busybox
Hi all,

On 02/20/2016 06:03 PM, Didier Kryn wrote:
> Le 19/02/2016 17:27, aitor_czr a écrit :
>> Hi Didier,
>>
>> El 19/02/16 16:00, Didier Kryn escribió:
>>>
>>>     Everything but fs compiles and links both dynamically or 
>>> statically and both with glibc or musl. This is very satisfactory.

>>>
>>>     With  'make -C fs' , I have a compilation error:

>>>
>>> /home/kryn/Applications/vdev-plus/include/fskit/common.h:63:20:
>>> fatal error: iostream: No such file or directory
>>>
>>>     however such a file exists in the include tree of gcc.

>>>
>>>     I'm not used to include files without a .h extension. Is it a 
>>> C++ feature? 

>>
>> Did you try including <fskit/common.h> instead of <common.h> in the
>> headers?
>>
>> Cheers,
>>
>> Aitor.
>
>     "fskit/common.h" *is* the file which is included, and it is found. 
> But this file itself includes <iostream>. I found iostream somewhere 
> in C++ system headers; therefore I would expect the C++ compiler to 
> find it automatically. I suspect some trick is necessary to help the C 
> compiler find it also. But, as I wrote, I've no experience in C++ and 
> mixing C and C++. I tried to include <iostream> with its whole path, 
> but it just displaces the problem.

>
>     I'm compiling against a version of fskit I built in may 2015 and 
> it might be obsolete. I might try to download the latest version.

>
>     Anyway vdev proper doesn't depend on this special filesystem, so 
> that this is a minor problem and isn't at all a blocker for vdev 
> deployment. For me the primary problem is the failure to create disk 
> devices. There might be other problems but the log is very verbose and 
> I better wait until Jude is available to analyse it.

>
>     The compilation is going well and I'm convinced that the problems 
> are caused by details. It might be that they are related to the way 
> I've configured or invoked vdevd, or the way I've laid out the files. 
> Therefore, if you are willing to debianize the package, I think you 
> could start now.

>
>     Vdev in the initramfs is absolutely not critical. Busybox comes 
> with its own mdev hotplugger, which doesn't depend on dbus or systemd, 
> and there is no need for the hotplugger to be the same in the 
> initramfs and the final system. Actually I think it would make sense 
> to use mdev inside the initramfs, this way initramfs would be 
> independant of the choice of hotplugger for the final system -- to be 
> discussed. My efforts with Busybox are rather meant for tiny OSes 
> based on Busybox and musl.

>
>     Cheers.
>                             Didier 


I will focus on vdev.

Where is the latest git repository?

Aitor.